)]}' { "log": [ { "commit": "bbc698636ed48b6fcd323964e0f847a6a796325d", "tree": "c90d31c179aad154089a88d4845f1721ded40860", "parents": [ "85ba2d862e521375a8ee01526c5c46b1f24bb4af" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:59 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:10 2008 -0700" }, "message": "task_current_syscall\n\nThis adds the new function task_current_syscall() on machines where the\nasm/syscall.h interface is supported (CONFIG_HAVE_ARCH_TRACEHOOK). It\u0027s\nexported for modules to use in the future. This function safely samples\nthe state of a blocked thread to collect what system call it is blocked\nin, and the six system call argument registers.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "85ba2d862e521375a8ee01526c5c46b1f24bb4af", "tree": "f098555cb580b2864f145aa845b574f07d2cf694", "parents": [ "1f5a4ad97a0e7b663d527ecc02aabe203d000d91" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: wait_task_inactive\n\nThis extends wait_task_inactive() with a new argument so it can be used in\na \"soft\" mode where it will check for the task changing state unexpectedly\nand back off. There is no change to existing callers. This lays the\ngroundwork to allow robust, noninvasive tracing that can try to sample a\nblocked thread but back off safely if it wakes up.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "828c365cc8b8d38c346fccb19fa80d28f2240831", "tree": "cedb0f1ce389f4b12d7b0975ce52c8af7939cfcd", "parents": [ "64b1208d5b0ef8859fd52ea7ae286a3eb994669b" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: asm/syscall.h\n\nThis adds asm-generic/syscall.h, which documents what a real\nasm-ARCH/syscall.h file should define. This is not used yet, but will\nprovide all the machine-dependent details of examining a user system call\nabout to begin, in progress, or just ended.\n\nEach arch should add an asm-ARCH/syscall.h that defines all the entry\npoints documented in asm-generic/syscall.h, as short inlines if possible.\nThis lets us write new tracing code that understands user system call\nregisters, without any new arch-specific work.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "64b1208d5b0ef8859fd52ea7ae286a3eb994669b", "tree": "ebb92b717406dc104924c4ccdedf14357a62b84f", "parents": [ "b787f7ba677840da16a2228c16571ce8a1fcb799" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:56 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: TIF_NOTIFY_RESUME\n\nThis adds tracehook.h inlines to enable a new arch feature in support of\nuser debugging/tracing. This is not used yet, but it lays the groundwork\nfor a debugger to be able to wrangle a task that\u0027s possibly running,\nwithout interrupting its syscalls in progress.\n\nEach arch should define TIF_NOTIFY_RESUME, and in their entry.S code treat\nit much like TIF_SIGPENDING. That is, it causes you to take the slow path\nwhen returning to user mode, where you get the full user-mode state\naccessible as for signal handling or ptrace. The arch code should check\nTIF_NOTIFY_RESUME after handling TIF_SIGPENDING. When it\u0027s set, clear it\nand then call tracehook_notify_resume().\n\nIn future, tracing code will call set_notify_resume() when it wants to get\na callback in tracehook_notify_resume().\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b787f7ba677840da16a2228c16571ce8a1fcb799", "tree": "b1838c4ae7f38c00efc2375871a255275500f245", "parents": [ "2b2a1ff64afbadac842bbc58c5166962cf4f7664" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: force signal_pending()\n\nThis defines a new hook tracehook_force_sigpending() that lets tracing\ncode decide to force TIF_SIGPENDING on in recalc_sigpending().\n\nThis is not used yet, so it compiles away to nothing for now. It lays the\ngroundwork for new tracing code that can interrupt a task synthetically\nwithout actually sending a signal.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2b2a1ff64afbadac842bbc58c5166962cf4f7664", "tree": "660640eb95117ce6f7436331f23f73805abced10", "parents": [ "fa00b80b3c41a845b3d56f866fb40a2e98754c51" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: death\n\nThis moves the ptrace logic in task death (exit_notify) into tracehook.h\ninlines. Some code is rearranged slightly to make things nicer. There is\nno change, only cleanup.\n\nThere is one hook called with the tasklist_lock write-locked, as ptrace\nneeds. There is also a new hook called after exit_state changes and\nwithout locks. This is a better place for tracing work to be in the\nfuture, since it doesn\u0027t delay the whole system with locking.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fa00b80b3c41a845b3d56f866fb40a2e98754c51", "tree": "819d6966cad1fdeef3f32497c696afb203e3720b", "parents": [ "7bcf6a2ca5f639b038c48711ebe6c4eca2036641" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: job control\n\nThis defines the tracehook_notify_jctl() hook to formalize the ptrace\neffects on the job control notifications. There is no change, only\ncleanup.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7bcf6a2ca5f639b038c48711ebe6c4eca2036641", "tree": "4219a0725d581310f729d4616361febd700f0574", "parents": [ "283d7559e7712f95a05331eb0a85394c6368101b" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: get_signal_to_deliver\n\nThis defines the tracehook_get_signal() hook to allow tracing code to slip\nin before normal signal dequeuing. This lays the groundwork for new\ntracing features that can inject synthetic signals outside the normal\nqueue or control the disposition of delivered signals. The calling\nconvention lets tracehook_get_signal() decide both exactly what will\nhappen and what signal number to report in the handler/exit.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "283d7559e7712f95a05331eb0a85394c6368101b", "tree": "9d8249b44cfe9a3216320940ec5754ecfd220bcd", "parents": [ "445a91d2fe3667fb8fc251433645f686933cf56a" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: syscall\n\nThis adds standard tracehook.h inlines for arch code to call when\nTIF_SYSCALL_TRACE has been set. This replaces having each arch implement\nthe ptrace guts for its syscall tracing support.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "445a91d2fe3667fb8fc251433645f686933cf56a", "tree": "496f0715ba3079f3bf98e9808480fe7f25872b16", "parents": [ "35de254dc60f91004b3b5ebb1fc7b2c3093d6032" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: tracehook_consider_fatal_signal\n\nThis defines tracehook_consider_fatal_signal() has a fine-grained hook for\ndeciding to skip the special cases for a fatal signal, as ptrace does.\nThere is no change, only cleanup.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "35de254dc60f91004b3b5ebb1fc7b2c3093d6032", "tree": "101e174247bb3174c8abe0fb8d1405ed6a4db6d1", "parents": [ "c45aea27617d6a1e0aacddc3b0233f704222fcbd" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:51 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: tracehook_consider_ignored_signal\n\nThis defines tracehook_consider_ignored_signal() has a fine-grained hook\nfor deciding to prevent the normal short-circuit of sending an ignored\nsignal, as ptrace does. There is no change, only cleanup.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c45aea27617d6a1e0aacddc3b0233f704222fcbd", "tree": "9406cbb5f3ca0029b2f6ef44a951fb7d21fe93f9", "parents": [ "fa8e26ccd485216fc45c8c2dd1ec3b7ef1a0a2f8" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: tracehook_signal_handler\n\nThis defines tracehook_signal_handler() as a hook for the arch signal\nhandling code to call. It gives ptrace the opportunity to stop for a\npseudo-single-step trap immediately after signal handler setup is done.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fa8e26ccd485216fc45c8c2dd1ec3b7ef1a0a2f8", "tree": "b6c3059593d7d185aaf7f5b69c363a48b18c5bb1", "parents": [ "0d094efeb1e98010c6b99923f1eb7e17bf1e3a74" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: tracehook_expect_breakpoints\n\nThis adds tracehook_expect_breakpoints() as a formal hook for the nommu\ncode to use for its, \"Is text-poking likely?\" check at mmap time. This\nnames the actual semantics the code means to test, and documents it.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0d094efeb1e98010c6b99923f1eb7e17bf1e3a74", "tree": "6ee271b6da5796e5321d2ab6f9d7d9ba03c300a2", "parents": [ "dae33574dcf5211e1f43c7e45fa29f73ba3e00cb" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: tracehook_tracer_task\n\nThis adds the tracehook_tracer_task() hook to consolidate all forms of\n\"Who is using ptrace on me?\" logic. This is used for \"TracerPid:\" in\n/proc and for permission checks. We also clean up the selinux code the\ncalled an identical accessor.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dae33574dcf5211e1f43c7e45fa29f73ba3e00cb", "tree": "090eb4af17451836fb39cebf57fbee64a6bd23b5", "parents": [ "daded34be96b1975ff8539ff62ad8b158ce7d842" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:48 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: release_task\n\nThis moves the ptrace-related logic from release_task into tracehook.h and\nptrace.h inlines. It provides clean hooks both before and after locking\ntasklist_lock, for future tracing logic to do more cleanup without the\nlock.\n\nThis also changes release_task() itself in the rare \"zap_leader\" case to\nset the leader to EXIT_DEAD before iterating. This maintains the\ninvariant that release_task() only ever handles a task in EXIT_DEAD. This\nis a common-sense invariant that is already always true except in this one\narcane case of zombie leader whose parent ignores SIGCHLD.\n\nThis change is harmless and only costs one store in this one rare case.\nIt keeps the expected state more consisently sane, which is nicer when\ndebugging weirdness in release_task(). It also lets some future code in\nthe tracehook entry points rely on this invariant for bookkeeping.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "daded34be96b1975ff8539ff62ad8b158ce7d842", "tree": "8cab5e809e513efd1a403e587a53a1e75365d1fc", "parents": [ "09a05394fe2448a4139b014936330af23fa7ec83" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: vfork-done\n\nThis moves the PTRACE_EVENT_VFORK_DONE tracing into a tracehook.h inline,\ntracehook_report_vfork_done(). The change has no effect, just clean-up.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "09a05394fe2448a4139b014936330af23fa7ec83", "tree": "a7b3f0ffe271d4d35c3b98a99183d8792ea4db53", "parents": [ "30199f5a46aee204bf437a4f5b0740f3efe448b7" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: clone\n\nThis moves all the ptrace initialization and tracing logic for task\ncreation into tracehook.h and ptrace.h inlines. It reorganizes the code\nslightly, but should not change any behavior.\n\nThere are four tracehook entry points, at each important stage of task\ncreation. This keeps the interface from the core fork.c code fairly\nclean, while supporting the complex setup required for ptrace or something\nlike it.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "30199f5a46aee204bf437a4f5b0740f3efe448b7", "tree": "9855ecf45727f6c41e9d75d4a5ac68c35546c14d", "parents": [ "ff1188646c6870f336e910fb894eeed74f50471f" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: exit\n\nThis moves the PTRACE_EVENT_EXIT tracing into a tracehook.h inline,\ntracehook_report_exec(). The change has no effect, just clean-up.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6341c393fcc37d58727865f1ee2f65e632e9d4f0", "tree": "6e88d928e17f663b225884e81877a7a069d7c514", "parents": [ "88ac2921a71f788ed693bcd44731dd6bc1994640" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: exec\n\nThis moves all the ptrace hooks related to exec into tracehook.h inlines.\n\nThis also lifts the calls for tracing out of the binfmt load_binary hooks\ninto search_binary_handler() after it calls into the binfmt module. This\nchange has no effect, since all the binfmt modules\u0027 load_binary functions\ndid the call at the end on success, and now search_binary_handler() does\nit immediately after return if successful. We consolidate the repeated\ncode, and binfmt modules no longer need to import ptrace_notify().\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "88ac2921a71f788ed693bcd44731dd6bc1994640", "tree": "db7039299713fec545061f884878563f8ae0caa6", "parents": [ "267e2a9c71b8e088ac307f9549f71468e86e26c1" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:43 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: add linux/tracehook.h\n\nThis patch series introduces the \"tracehook\" interface layer of inlines in\n\u003clinux/tracehook.h\u003e. There are more details in the log entry for patch\n01/23 and in the header file comments inside that patch. Most of these\nchanges move code around with little or no change, and they should not\nbreak anything or change any behavior.\n\nThis sets a new standard for uniform arch support to enable clean\narch-independent implementations of new debugging and tracing stuff,\ndenoted by CONFIG_HAVE_ARCH_TRACEHOOK. Patch 20/23 adds that symbol to\narch/Kconfig, with comments listing everything an arch has to do before\nsetting \"select HAVE_ARCH_TRACEHOOK\". These are elaborted a bit at:\n\n\thttp://sourceware.org/systemtap/wiki/utrace/arch/HowTo\n\nThe new inlines that arch code must define or call have detailed kerneldoc\ncomments in the generic header files that say what is required.\n\nNo arch is obligated to do any work, and no arch\u0027s build should be broken\nby these changes. There are several steps that each arch should take so\nit can set HAVE_ARCH_TRACEHOOK. Most of these are simple. Providing this\nsupport will let new things people add for doing debugging and tracing of\nuser-level threads \"just work\" for your arch in the future. For an arch\nthat does not provide HAVE_ARCH_TRACEHOOK, some new options for such\nfeatures will not be available for config.\n\nI have done some arch work and will submit this to the arch maintainers\nafter the generic tracehook series settles in. For now, that work is\navailable in my GIT repositories, and in patch and mbox-of-patches form at\nhttp://people.redhat.com/roland/utrace/2.6-current/\n\nThis paves the way for my \"utrace\" work, to be submitted later. But it is\nnot innately tied to that. I hope that the tracehook series can go in\nsoon regardless of what eventually does or doesn\u0027t go on top of it. For\nanyone implementing any kind of new tracing/debugging plan, or just\nunderstanding all the context of the existing ptrace implementation,\nhaving tracehook.h makes things much easier to find and understand.\n\nThis patch:\n\nThis adds the new kernel-internal header file \u003clinux/tracehook.h\u003e. This\nis not yet used at all. The comments in the header introduce what the\nfollowing series of patches is about.\n\nThe aim is to formalize and consolidate all the places that the core\nkernel code and the arch code now ties into the ptrace implementation.\n\nThese patches mostly don\u0027t cause any functional change. They just move\nthe details of ptrace logic out of core code into tracehook.h inlines,\nwhere they are mostly compiled away to the same as before. All that\nchanges is that everything is thoroughly documented and any future\nreworking of ptrace, or addition of something new, would not have to touch\ncore code all over, just change the tracehook.h inlines.\n\nThe new linux/ptrace.h inlines are used by the following patches in the\nnew tracehook_*() inlines. Using these helpers for the ptrace event stops\nmakes it simple to change or disable the old ptrace implementation of\nthese stops conditionally later.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "51cc50685a4275c6a02653670af9f108a64e01cf", "tree": "819d47bd2b0c8a9d1835d863853804b0a0242b97", "parents": [ "d91958815d214ea365b98cbff6215383897edcb6" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Jul 25 19:45:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:07 2008 -0700" }, "message": "SL*B: drop kmem cache argument from constructor\n\nKmem cache passed to constructor is only needed for constructors that are\nthemselves multiplexeres. Nobody uses this \"feature\", nor does anybody uses\npassed kmem cache in non-trivial way, so pass only pointer to object.\n\nNon-trivial places are:\n\tarch/powerpc/mm/init_64.c\n\tarch/powerpc/mm/hugetlbpage.c\n\nThis is flag day, yes.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Jon Tollefson \u003ckniht@linux.vnet.ibm.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\n[akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c]\n[akpm@linux-foundation.org: fix mm/slab.c]\n[akpm@linux-foundation.org: fix ubifs]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "19fd6231279be3c3bdd02ed99f9b0eb195978064", "tree": "ee09121054262d73c551b57114acd855b82a7a82", "parents": [ "a60637c85893e7191faaafa6a72e197c24386727" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Fri Jul 25 19:45:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:06 2008 -0700" }, "message": "mm: spinlock tree_lock\n\nmapping-\u003etree_lock has no read lockers. convert the lock from an rwlock\nto a spinlock.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nReviewed-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e286781d5f2e9c846e012a39653a166e9d31777d", "tree": "14958fe6d8f3e0459c96c68b3034ea2433ab85ac", "parents": [ "47feff2c8eefe85099f87c43d3096855f0085ca0" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Fri Jul 25 19:45:30 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:06 2008 -0700" }, "message": "mm: speculative page references\n\nIf we can be sure that elevating the page_count on a pagecache page will\npin it, we can speculatively run this operation, and subsequently check to\nsee if we hit the right page rather than relying on holding a lock or\notherwise pinning a reference to the page.\n\nThis can be done if get_page/put_page behaves consistently throughout the\nwhole tree (ie. if we \"get\" the page after it has been used for something\nelse, we must be able to free it with a put_page).\n\nActually, there is a period where the count behaves differently: when the\npage is free or if it is a constituent page of a compound page. We need\nan atomic_inc_not_zero operation to ensure we don\u0027t try to grab the page\nin either case.\n\nThis patch introduces the core locking protocol to the pagecache (ie.\nadds page_cache_get_speculative, and tweaks some update-side code to make\nit work).\n\nThanks to Hugh for pointing out an improvement to the algorithm setting\npage_count to zero when we have control of all references, in order to\nhold off speculative getters.\n\n[kamezawa.hiroyu@jp.fujitsu.com: fix migration_entry_wait()]\n[hugh@veritas.com: fix add_to_page_cache]\n[akpm@linux-foundation.org: repair a comment]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nReviewed-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Daisuke Nishimura \u003cnishimura@mxp.nes.nec.co.jp\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nAcked-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "47feff2c8eefe85099f87c43d3096855f0085ca0", "tree": "a3a6d005f202d1a37bb406c5623a9d09a447b0f0", "parents": [ "30002ed2e41830ec03ec3e577ad83ac6b188f96e" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Fri Jul 25 19:45:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:06 2008 -0700" }, "message": "radix-tree: add gang_lookup_slot, gang_lookup_slot_tag\n\nIntroduce gang_lookup_slot() and gang_lookup_slot_tag() functions, which\nare used by lockless pagecache.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nReviewed-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8174c430e445a93016ef18f717fe570214fa38bf", "tree": "f1b4426eae7401425e9102c7b3e141be86f0930c", "parents": [ "21cc199baa815d7b3f1ace4be20b9558cbddc00f" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Fri Jul 25 19:45:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:06 2008 -0700" }, "message": "x86: lockless get_user_pages_fast()\n\nImplement get_user_pages_fast without locking in the fastpath on x86.\n\nDo an optimistic lockless pagetable walk, without taking mmap_sem or any\npage table locks or even mmap_sem. Page table existence is guaranteed by\nturning interrupts off (combined with the fact that we\u0027re always looking\nup the current mm, means we can do the lockless page table walk within the\nconstraints of the TLB shootdown design). Basically we can do this\nlockless pagetable walk in a similar manner to the way the CPU\u0027s pagetable\nwalker does not have to take any locks to find present ptes.\n\nThis patch (combined with the subsequent ones to convert direct IO to use\nit) was found to give about 10% performance improvement on a 2 socket 8\ncore Intel Xeon system running an OLTP workload on DB2 v9.5\n\n \"To test the effects of the patch, an OLTP workload was run on an IBM\n x3850 M2 server with 2 processors (quad-core Intel Xeon processors at\n 2.93 GHz) using IBM DB2 v9.5 running Linux 2.6.24rc7 kernel. Comparing\n runs with and without the patch resulted in an overall performance\n benefit of ~9.8%. Correspondingly, oprofiles showed that samples from\n __up_read and __down_read routines that is seen during thread contention\n for system resources was reduced from 2.8% down to .05%. Monitoring the\n /proc/vmstat output from the patched run showed that the counter for\n fast_gup contained a very high number while the fast_gup_slow value was\n zero.\"\n\n(fast_gup is the old name for get_user_pages_fast, fast_gup_slow is a\ncounter we had for the number of times the slowpath was invoked).\n\nThe main reason for the improvement is that DB2 has multiple threads each\nissuing direct-IO. Direct-IO uses get_user_pages, and thus the threads\ncontend the mmap_sem cacheline, and can also contend on page table locks.\n\nI would anticipate larger performance gains on larger systems, however I\nthink DB2 uses an adaptive mix of threads and processes, so it could be\nthat thread contention remains pretty constant as machine size increases.\nIn which case, we stuck with \"only\" a 10% gain.\n\nThe downside of using get_user_pages_fast is that if there is not a pte\nwith the correct permissions for the access, we end up falling back to\nget_user_pages and so the get_user_pages_fast is a bit of extra work.\nHowever this should not be the common case in most performance critical\ncode.\n\n[akpm@linux-foundation.org: coding-style fixes]\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: Kconfig fix]\n[akpm@linux-foundation.org: Makefile fix/cleanup]\n[akpm@linux-foundation.org: warning fix]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nReviewed-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "21cc199baa815d7b3f1ace4be20b9558cbddc00f", "tree": "eb4f3fa42a83613e2fe586b2555a811740952dce", "parents": [ "a0a8f5364a5ad248aec6cb705e0092ff563edc2f" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Fri Jul 25 19:45:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:05 2008 -0700" }, "message": "mm: introduce get_user_pages_fast\n\nIntroduce a new get_user_pages_fast mm API, which is basically a\nget_user_pages with a less general API (but still tends to be suited to\nthe common case):\n\n- task and mm are always current and current-\u003emm\n- force is always 0\n- pages is always non-NULL\n- don\u0027t pass back vmas\n\nThis restricted API can be implemented in a much more scalable way on many\narchitectures when the ptes are present, by walking the page tables\nlocklessly (no mmap_sem or page table locks). When the ptes are not\npopulated, get_user_pages_fast() could be slower.\n\nThis is implemented locklessly on x86, and used in some key direct IO call\nsites, in later patches, which provides nearly 10% performance improvement\non a threaded database workload.\n\nLots of other code could use this too, depending on use cases (eg. grep\ndrivers/). And it might inspire some new and clever ways to use it.\n\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nReviewed-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a0a8f5364a5ad248aec6cb705e0092ff563edc2f", "tree": "fe942b13adc527f66103d529c2ee91da05086d1c", "parents": [ "2682497245e7d22160ae63032c378745a7f2cfe5" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Fri Jul 25 19:45:20 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:05 2008 -0700" }, "message": "x86: implement pte_special\n\nImplement the pte_special bit for x86. This is required to support\nlockless get_user_pages, because we need to know whether or not we can\nrefcount a particular page given only its pte (and no vma).\n\n[hugh@veritas.com: fix a BUG]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nReviewed-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "080ccd4573607a930367c2128fc709814b2ade5d", "tree": "416cd540b0662822c90ed693ddae1ebb738a529c", "parents": [ "20d8b67c06fa5e74f44e80b0a0fd68c8327f7c6a" ], "author": { "name": "Huang Weiyi", "email": "weiyi.huang@gmail.com", "time": "Fri Jul 25 19:45:13 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "include/linux/aio.h: removed duplicated include\n\nRemoved duplicated include \u003clinux/uio.h\u003e in include/linux/aio.h\n\nSigned-off-by: Huang Weiyi \u003cweiyi.huang@gmail.com\u003e\nSigned-off-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "20d8b67c06fa5e74f44e80b0a0fd68c8327f7c6a", "tree": "7162455643e7ce45e253033bf648bf41d9796dd9", "parents": [ "7babe8db99d305340cf4828ce1f5a1481d5622ef" ], "author": { "name": "Eduard - Gabriel Munteanu", "email": "eduard.munteanu@linux360.ro", "time": "Fri Jul 25 19:45:12 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "relay: add buffer-only channels; useful for early logging\n\nAllows one to create and use a channel with no associated files. Files\ncan be initialized later. This is useful in scenarios such as logging in\nearly code, before VFS is up. Therefore, such channels can be created and\nused as soon as kmem_cache_init() completed.\n\nThis is needed by kmemtrace to do tracing in early kernel code.\n\n[kosaki.motohiro@jp.fujitsu.com: build fix]\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7babe8db99d305340cf4828ce1f5a1481d5622ef", "tree": "fdac7a084646bb6d125ebc62b0b75806e45d1025", "parents": [ "c2147a5092cfe13dbf3210e54e8a622015edeecc" ], "author": { "name": "Eduard - Gabriel Munteanu", "email": "eduard.munteanu@linux360.ro", "time": "Fri Jul 25 19:45:11 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "Full conversion to early_initcall() interface, remove old interface\n\nA previous patch added the early_initcall(), to allow a cleaner hooking of\npre-SMP initcalls. Now we remove the older interface, converting all\nexisting users to the new one.\n\n[akpm@linux-foundation.org: cleanups]\n[akpm@linux-foundation.org: build fix]\n[kosaki.motohiro@jp.fujitsu.com: warning fix]\n[kosaki.motohiro@jp.fujitsu.com: warning fix]\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c2147a5092cfe13dbf3210e54e8a622015edeecc", "tree": "e34e0daee3cc0b19914a27d6f7f284b1fc22aa93", "parents": [ "89081d17f7bb81d89fa1aa9b70f821c5cf4d39e9" ], "author": { "name": "Eduard - Gabriel Munteanu", "email": "eduard.munteanu@linux360.ro", "time": "Fri Jul 25 19:45:11 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "Better interface for hooking early initcalls\n\nAdded early initcall (pre-SMP) support, using an identical interface to\nthat of regular initcalls. Functions called from do_pre_smp_initcalls()\ncould be converted to use this cleaner interface.\n\nThis is required by CPU hotplug, because early users have to register\nnotifiers before going SMP. One such CPU hotplug user is the relay\ninterface with buffer-only channels, which needs to register such a\nnotifier, to be usable in early code. This in turn is used by kmemtrace.\n\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "89081d17f7bb81d89fa1aa9b70f821c5cf4d39e9", "tree": "1835fa64801fee048c8074ae4d63b0a7f4b14ee3", "parents": [ "3ab83521378268044a448113c6aa9a9e245f4d2f" ], "author": { "name": "Huang Ying", "email": "ying.huang@intel.com", "time": "Fri Jul 25 19:45:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "kexec jump: save/restore device state\n\nThis patch implements devices state save/restore before after kexec.\n\nThis patch together with features in kexec_jump patch can be used for\nfollowing:\n\n- A simple hibernation implementation without ACPI support. You can kexec a\n hibernating kernel, save the memory image of original system and shutdown\n the system. When resuming, you restore the memory image of original system\n via ordinary kexec load then jump back.\n\n- Kernel/system debug through making system snapshot. You can make system\n snapshot, jump back, do some thing and make another system snapshot.\n\n- Cooperative multi-kernel/system. With kexec jump, you can switch between\n several kernels/systems quickly without boot process except the first time.\n This appears like swap a whole kernel/system out/in.\n\n- A general method to call program in physical mode (paging turning\n off). This can be used to invoke BIOS code under Linux.\n\nThe following user-space tools can be used with kexec jump:\n\n- kexec-tools needs to be patched to support kexec jump. The patches\n and the precompiled kexec can be download from the following URL:\n source: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-src_git_kh10.tar.bz2\n patches: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-patches_git_kh10.tar.bz2\n binary: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec_git_kh10\n\n- makedumpfile with patches are used as memory image saving tool, it\n can exclude free pages from original kernel memory image file. The\n patches and the precompiled makedumpfile can be download from the\n following URL:\n source: http://khibernation.sourceforge.net/download/release_v10/makedumpfile/makedumpfile-src_cvs_kh10.tar.bz2\n patches: http://khibernation.sourceforge.net/download/release_v10/makedumpfile/makedumpfile-patches_cvs_kh10.tar.bz2\n binary: http://khibernation.sourceforge.net/download/release_v10/makedumpfile/makedumpfile_cvs_kh10\n\n- An initramfs image can be used as the root file system of kexeced\n kernel. An initramfs image built with \"BuildRoot\" can be downloaded\n from the following URL:\n initramfs image: http://khibernation.sourceforge.net/download/release_v10/initramfs/rootfs_cvs_kh10.gz\n All user space tools above are included in the initramfs image.\n\nUsage example of simple hibernation:\n\n1. Compile and install patched kernel with following options selected:\n\nCONFIG_X86_32\u003dy\nCONFIG_RELOCATABLE\u003dy\nCONFIG_KEXEC\u003dy\nCONFIG_CRASH_DUMP\u003dy\nCONFIG_PM\u003dy\nCONFIG_HIBERNATION\u003dy\nCONFIG_KEXEC_JUMP\u003dy\n\n2. Build an initramfs image contains kexec-tool and makedumpfile, or\n download the pre-built initramfs image, called rootfs.gz in\n following text.\n\n3. Prepare a partition to save memory image of original kernel, called\n hibernating partition in following text.\n\n4. Boot kernel compiled in step 1 (kernel A).\n\n5. In the kernel A, load kernel compiled in step 1 (kernel B) with\n /sbin/kexec. The shell command line can be as follow:\n\n /sbin/kexec --load-preserve-context /boot/bzImage --mem-min\u003d0x100000\n --mem-max\u003d0xffffff --initrd\u003drootfs.gz\n\n6. Boot the kernel B with following shell command line:\n\n /sbin/kexec -e\n\n7. The kernel B will boot as normal kexec. In kernel B the memory\n image of kernel A can be saved into hibernating partition as\n follow:\n\n jump_back_entry\u003d`cat /proc/cmdline | tr \u0027 \u0027 \u0027\\n\u0027 | grep kexec_jump_back_entry | cut -d \u0027\u003d\u0027`\n echo $jump_back_entry \u003e kexec_jump_back_entry\n cp /proc/vmcore dump.elf\n\n Then you can shutdown the machine as normal.\n\n8. Boot kernel compiled in step 1 (kernel C). Use the rootfs.gz as\n root file system.\n\n9. In kernel C, load the memory image of kernel A as follow:\n\n /sbin/kexec -l --args-none --entry\u003d`cat kexec_jump_back_entry` dump.elf\n\n10. Jump back to the kernel A as follow:\n\n /sbin/kexec -e\n\n Then, kernel A is resumed.\n\nImplementation point:\n\nTo support jumping between two kernels, before jumping to (executing)\nthe new kernel and jumping back to the original kernel, the devices\nare put into quiescent state, and the state of devices and CPU is\nsaved. After jumping back from kexeced kernel and jumping to the new\nkernel, the state of devices and CPU are restored accordingly. The\ndevices/CPU state save/restore code of software suspend is called to\nimplement corresponding function.\n\nKnown issues:\n\n- Because the segment number supported by sys_kexec_load is limited,\n hibernation image with many segments may not be load. This is\n planned to be eliminated by adding a new flag to sys_kexec_load to\n make a image can be loaded with multiple sys_kexec_load invoking.\n\nNow, only the i386 architecture is supported.\n\nSigned-off-by: Huang Ying \u003cying.huang@intel.com\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3ab83521378268044a448113c6aa9a9e245f4d2f", "tree": "e9e8496577e4b2e994edf204e9a8ae7c026eec95", "parents": [ "7fccf0326536c1b245b98740d489abb9aab69a12" ], "author": { "name": "Huang Ying", "email": "ying.huang@intel.com", "time": "Fri Jul 25 19:45:07 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "kexec jump\n\nThis patch provides an enhancement to kexec/kdump. It implements the\nfollowing features:\n\n- Backup/restore memory used by the original kernel before/after\n kexec.\n\n- Save/restore CPU state before/after kexec.\n\nThe features of this patch can be used as a general method to call program in\nphysical mode (paging turning off). This can be used to call BIOS code under\nLinux.\n\nkexec-tools needs to be patched to support kexec jump. The patches and\nthe precompiled kexec can be download from the following URL:\n\n source: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-src_git_kh10.tar.bz2\n patches: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-patches_git_kh10.tar.bz2\n binary: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec_git_kh10\n\nUsage example of calling some physical mode code and return:\n\n1. Compile and install patched kernel with following options selected:\n\nCONFIG_X86_32\u003dy\nCONFIG_KEXEC\u003dy\nCONFIG_PM\u003dy\nCONFIG_KEXEC_JUMP\u003dy\n\n2. Build patched kexec-tool or download the pre-built one.\n\n3. Build some physical mode executable named such as \"phy_mode\"\n\n4. Boot kernel compiled in step 1.\n\n5. Load physical mode executable with /sbin/kexec. The shell command\n line can be as follow:\n\n /sbin/kexec --load-preserve-context --args-none phy_mode\n\n6. Call physical mode executable with following shell command line:\n\n /sbin/kexec -e\n\nImplementation point:\n\nTo support jumping without reserving memory. One shadow backup page (source\npage) is allocated for each page used by kexeced code image (destination\npage). When do kexec_load, the image of kexeced code is loaded into source\npages, and before executing, the destination pages and the source pages are\nswapped, so the contents of destination pages are backupped. Before jumping\nto the kexeced code image and after jumping back to the original kernel, the\ndestination pages and the source pages are swapped too.\n\nC ABI (calling convention) is used as communication protocol between\nkernel and called code.\n\nA flag named KEXEC_PRESERVE_CONTEXT for sys_kexec_load is added to\nindicate that the loaded kernel image is used for jumping back.\n\nNow, only the i386 architecture is supported.\n\nSigned-off-by: Huang Ying \u003cying.huang@intel.com\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "17017d8d2c005734d7088d8281ce2daab8fcb097", "tree": "df689658df7d342143ad399bddf0df7257e8ec20", "parents": [ "b77899985bdfd85a8e5a6e485033a9b4713d2471" ], "author": { "name": "Alex Dubov", "email": "oakad@yahoo.com", "time": "Fri Jul 25 19:45:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "memstick: add \"start\" and \"stop\" methods to memstick device\n\nIn some cases it may be desirable to ensure that associated driver is not\ngoing to access the media in some period of time. \"start\" and \"stop\"\nmethods are provided therefore to allow it.\n\nSigned-off-by: Alex Dubov \u003coakad@yahoo.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b77899985bdfd85a8e5a6e485033a9b4713d2471", "tree": "5cf53074b73de6fc27d8d8b0ac78fc8d32c0b9df", "parents": [ "0147600172b4a5d261165d1aa5ef818d84da1557" ], "author": { "name": "Alex Dubov", "email": "oakad@yahoo.com", "time": "Fri Jul 25 19:45:00 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "memstick: allow \"set_param\" method to return an error code\n\nSome controllers (Jmicron, for instance) can report temporal failure\ncondition during power-on. It is desirable to account for this using a\nreturn value of \"set_param\" device method. The return value can also be\nhandy to distinguish between supported and unsupported device parameters\nin run time.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Alex Dubov \u003coakad@yahoo.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "929dfb24fbcd60e2544b2de7bfb4a68da4dfc747", "tree": "5b67ea8f6c75ae199d2d7542645517152fe07e1c", "parents": [ "3f165e4cf2af042af7d2440d688299c0d2a48b1f" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 19:44:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:03 2008 -0700" }, "message": "parport/share.c: proper externs\n\nThis patch adds proper externs for parport_default_timeslice and\nparport_default_spintime in include/linux/parport.h\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1956a96de488feb05e95c08c9d5e80f63a4be2b1", "tree": "fd361f464386607e3d753e062ae7956e94c022e3", "parents": [ "8d8bb39b9eba32dd70e87fd5ad5c5dd4ba118e06" ], "author": { "name": "Alexis Bruemmer", "email": "alexisb@us.ibm.com", "time": "Fri Jul 25 19:44:51 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:03 2008 -0700" }, "message": "x86 calgary: fix handling of devices that aren\u0027t behind the Calgary\n\nThe calgary code can give drivers addresses above 4GB which is very bad\nfor hardware that is only 32bit DMA addressable.\n\nWith this patch, the calgary code sets the global dma_ops to swiotlb or\nnommu properly, and the dma_ops of devices behind the Calgary/CalIOC2\nto calgary_dma_ops. So the calgary code can handle devices safely that\naren\u0027t behind the Calgary/CalIOC2.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Alexis Bruemmer \u003calexisb@us.ibm.com\u003e\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Muli Ben-Yehuda \u003cmuli@il.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8d8bb39b9eba32dd70e87fd5ad5c5dd4ba118e06", "tree": "64090a84f4c4466f9f30ff46c993e0cede379052", "parents": [ "c485b465a031b6f9b9a51300e0ee1f86efc6db87" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Fri Jul 25 19:44:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:03 2008 -0700" }, "message": "dma-mapping: add the device argument to dma_mapping_error()\n\nAdd per-device dma_mapping_ops support for CONFIG_X86_64 as POWER\narchitecture does:\n\nThis enables us to cleanly fix the Calgary IOMMU issue that some devices\nare not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423).\n\nI think that per-device dma_mapping_ops support would be also helpful for\nKVM people to support PCI passthrough but Andi thinks that this makes it\ndifficult to support the PCI passthrough (see the above thread). So I\nCC\u0027ed this to KVM camp. Comments are appreciated.\n\nA pointer to dma_mapping_ops to struct dev_archdata is added. If the\npointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it\u0027s\nNULL, the system-wide dma_ops pointer is used as before.\n\nIf it\u0027s useful for KVM people, I plan to implement a mechanism to register\na hook called when a new pci (or dma capable) device is created (it works\nwith hot plugging). It enables IOMMUs to set up an appropriate\ndma_mapping_ops per device.\n\nThe major obstacle is that dma_mapping_error doesn\u0027t take a pointer to the\ndevice unlike other DMA operations. So x86 can\u0027t have dma_mapping_ops per\ndevice. Note all the POWER IOMMUs use the same dma_mapping_error function\nso this is not a problem for POWER but x86 IOMMUs use different\ndma_mapping_error functions.\n\nThe first patch adds the device argument to dma_mapping_error. The patch\nis trivial but large since it touches lots of drivers and dma-mapping.h in\nall the architecture.\n\nThis patch:\n\ndma_mapping_error() doesn\u0027t take a pointer to the device unlike other DMA\noperations. So we can\u0027t have dma_mapping_ops per device.\n\nNote that POWER already has dma_mapping_ops per device but all the POWER\nIOMMUs use the same dma_mapping_error function. x86 IOMMUs use device\nargument.\n\n[akpm@linux-foundation.org: fix sge]\n[akpm@linux-foundation.org: fix svc_rdma]\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: fix bnx2x]\n[akpm@linux-foundation.org: fix s2io]\n[akpm@linux-foundation.org: fix pasemi_mac]\n[akpm@linux-foundation.org: fix sdhci]\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: fix sparc]\n[akpm@linux-foundation.org: fix ibmvscsi]\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Muli Ben-Yehuda \u003cmuli@il.ibm.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Avi Kivity \u003cavi@qumranet.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "44ccac13c7f4728cf2992d49384671a176db74dd", "tree": "67869716627f8f8f6bc34405d8623fdf60bea9af", "parents": [ "8a21346058ad946134b6ddfeb5de975c3cfcf5da" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 19:44:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:01 2008 -0700" }, "message": "include/video/atmel_lcdc.h must #include \u003clinux/workqueue.h\u003e\n\nThis patch fixes the following compile error caused by commit\nd22579b837358cbef12ccca5adaf7e93ae09ab7a (\"atmel_lcdfb: FIFO underflow\nmanagement\"):\n\n In file included from arch/avr32/boards/atstk1000/atstk1004.c:21:\n include/video/atmel_lcdc.h:40: error: field \u0027task\u0027 has incomplete type\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "16d69265b930f7e2fa9eea381715696f780718f4", "tree": "5b3bf02f5f4fe21da4e9b5e0f22f6518bd81b609", "parents": [ "0c7ad106e779549792deb307242dece6f3499bb9" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Fri Jul 25 19:44:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:01 2008 -0700" }, "message": "uninline arch_pick_mmap_layout()\n\nFix this, on avr32:\n\n include/linux/utsname.h:35,\n from init/main.c:20:\n include/linux/sched.h: In function \u0027arch_pick_mmap_layout\u0027:\n include/linux/sched.h:2149: error: implicit declaration of function \u0027PAGE_ALIGN\u0027\n\nReported-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1ff8419871ea757ae0298aa296bcff9b2ca48561", "tree": "ff2194bc75f06107e16220ce303ef546f9a4c769", "parents": [ "8d25b36b77fe32c296ece83e94ca6ae4d17f3e25", "7d7e5a60c62e88cb8782760bb6c4d3bd1577a6c6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:40:16 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:40:16 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:\n ipsec: ipcomp - Decompress into frags if necessary\n ipsec: ipcomp - Merge IPComp implementations\n pkt_sched: Fix locking in shutdown_scheduler_queue()\n" }, { "commit": "7b35fa86e47f83db27056b202463d926ff0a2c8f", "tree": "b5f535a337e4465907a12500eb5e79e3e72bd524", "parents": [ "29ca069cc6572cce62e42a27efdab01f50190616", "f1373da87be917e5b2356af44764620487376a07" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:33:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:33:34 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:\n sparc: Wire up new system calls.\n" }, { "commit": "29ca069cc6572cce62e42a27efdab01f50190616", "tree": "b948f5eed1691fa0bca57aa116837c8eeef0b90a", "parents": [ "b4615e69b6c6353878b734a8202b65efbc554df4", "3e4d0cab61c88a9ae3e61151a857960397e26403" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:29:03 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:29:03 2008 -0700" }, "message": "Merge branch \u0027release\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6\n\n* \u0027release\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:\n [IA64] Wire up new system calls\n" }, { "commit": "b4615e69b6c6353878b734a8202b65efbc554df4", "tree": "b1ea3503d4dd3c979f10af7e74bd7bde27764ce8", "parents": [ "ff5d48a6d18d09bb750d1f89f6464f5fdb6fc85b" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Fri Jul 25 13:19:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:28:49 2008 -0700" }, "message": "sys_paccept definition missing __user annotation\n\nIntroduced by commit aaca0bdca573f3f51ea03139f9c7289541e7bca3 (\"flag\nparameters: paccept\"):\n\n net/socket.c:1515:17: error: symbol \u0027sys_paccept\u0027 redeclared with different type (originally declared at include/linux/syscalls.h:413) - incompatible argument 4 (different address spaces)\n\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f1373da87be917e5b2356af44764620487376a07", "tree": "64f3feeba42d3cda5806c061bfa89a9007ba9134", "parents": [ "fb2e405fc1fc8b20d9c78eaa1c7fd5a297efde43" ], "author": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Fri Jul 25 15:18:31 2008 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Fri Jul 25 15:18:31 2008 -0700" }, "message": "sparc: Wire up new system calls.\n\nThis wires up the recently added Wire up signalfd4, eventfd2,\nepoll_create1, dup3, pipe2, and inotify_init1 system calls.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "ff5d48a6d18d09bb750d1f89f6464f5fdb6fc85b", "tree": "243a2157912d6183c99d98dc74fe7a87a5cfbf6e", "parents": [ "762b8291be6944bd891fbe2c8976a2b2e5bbc726", "a29ccf6f823a84d89e1c7aaaf221cf7282022024" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 12:02:08 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 12:02:08 2008 -0700" }, "message": "Merge git://git.infradead.org/embedded-2.6\n\n* git://git.infradead.org/embedded-2.6:\n Make console charset translation optional\n" }, { "commit": "762b8291be6944bd891fbe2c8976a2b2e5bbc726", "tree": "4ce2572c050d473bd8dcde8bfbaad0ab830b1b1c", "parents": [ "c6af5e9f8a57467df2e55e428316a43480174521", "7dcf2a9fced59e58e4694cdcf15850c01fdba89b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 12:01:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 12:01:37 2008 -0700" }, "message": "Merge git://git.infradead.org/~dwmw2/random-2.6\n\n* git://git.infradead.org/~dwmw2/random-2.6:\n remove dummy asm/kvm.h files\n firmware: create firmware binaries during \u0027make modules\u0027.\n" }, { "commit": "c6af5e9f8a57467df2e55e428316a43480174521", "tree": "374f2a3372fb21a030384a50ad82149f7a62680b", "parents": [ "9b81361631bbb1d85c99ddec677d42afe516737b" ], "author": { "name": "Johannes Weiner", "email": "hannes@saeurebad.de", "time": "Fri Jul 25 15:48:04 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 11:36:44 2008 -0700" }, "message": "bootmem: Move node allocation macros back to !HAVE_ARCH_BOOTMEM_NODE\n\nThese got unintentionally moved, put them back as x86 provides its own\nversions.\n\nSigned-off-by: Johannes Weiner \u003channes@saeurebad.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7dcf2a9fced59e58e4694cdcf15850c01fdba89b", "tree": "635476803ae017229f4a3dfaf7288d770b0dc1bf", "parents": [ "44463f7dd6c8039904333e4374e5c6e9ad83006f" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Jul 01 19:27:16 2008 +0300" }, "committer": { "name": "David Woodhouse", "email": "David.Woodhouse@intel.com", "time": "Fri Jul 25 14:35:50 2008 -0400" }, "message": "remove dummy asm/kvm.h files\n\nThis patch removes the dummy asm/kvm.h files on architectures not (yet)\nsupporting KVM and uses the same conditional headers installation as\nalready used for a.out.h .\n\nAlso removed are superfluous install rules in the s390 and x86 Kbuild\nfiles (they are already in Kbuild.asm).\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: Sam Ravnborg \u003csam@ravnborg.org\u003e\nSigned-off-by: David Woodhouse \u003cDavid.Woodhouse@intel.com\u003e\n" }, { "commit": "5047887caf1806f31652210df27fb62a7c43f27d", "tree": "4098ead40c1aa7b904167f67cff87a247cfa0b6c", "parents": [ "996abf053eec4d67136be8b911bbaaf989cfb99c", "973b7d83ebeb1e34b8bee69208916e5f0e2353c3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 11:08:17 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 11:08:17 2008 -0700" }, "message": "Merge branch \u0027merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc\n\n* \u0027merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (34 commits)\n powerpc: Wireup new syscalls\n Move update_mmu_cache() declaration from tlbflush.h to pgtable.h\n powerpc/pseries: Remove kmalloc call in handling writes to lparcfg\n powerpc/pseries: Update arch vector to indicate support for CMO\n ibmvfc: Add support for collaborative memory overcommit\n ibmvscsi: driver enablement for CMO\n ibmveth: enable driver for CMO\n ibmveth: Automatically enable larger rx buffer pools for larger mtu\n powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O\n powerpc/pseries: vio bus support for CMO\n powerpc/pseries: iommu enablement for CMO\n powerpc/pseries: Add CMO paging statistics\n powerpc/pseries: Add collaborative memory manager\n powerpc/pseries: Utilities to set firmware page state\n powerpc/pseries: Enable CMO feature during platform setup\n powerpc/pseries: Split retrieval of processor entitlement data into a helper routine\n powerpc/pseries: Add memory entitlement capabilities to /proc/ppc64/lparcfg\n powerpc/pseries: Split processor entitlement retrieval and gathering to helper routines\n powerpc/pseries: Remove extraneous error reporting for hcall failures in lparcfg\n powerpc: Fix compile error with binutils 2.15\n ...\n\nFixed up conflict in arch/powerpc/platforms/52xx/Kconfig manually.\n" }, { "commit": "996abf053eec4d67136be8b911bbaaf989cfb99c", "tree": "e2596756d7f74d06a937b2e71306cd3827ad9947", "parents": [ "93082f0b15841b8926c38ef224d0e6f720000635", "d37e6bf68fc1eb34a4ad21d9ae8890ed37ea80e7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 11:02:17 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 11:02:17 2008 -0700" }, "message": "Merge branch \u0027linux-next\u0027 of git://git.infradead.org/~dedekind/ubi-2.6\n\n* \u0027linux-next\u0027 of git://git.infradead.org/~dedekind/ubi-2.6: (22 commits)\n UBI: always start the background thread\n UBI: fix gcc warning\n UBI: remove pre-sqnum images support\n UBI: fix kernel-doc errors and warnings\n UBI: fix checkpatch.pl errors and warnings\n UBI: bugfix - do not torture PEB needlessly\n UBI: rework scrubbing messages\n UBI: implement multiple volumes rename\n UBI: fix and re-work debugging stuff\n UBI: amend commentaries\n UBI: fix error message\n UBI: improve mkvol request validation\n UBI: add ubi_sync() interface\n UBI: fix 64-bit calculations\n UBI: fix LEB locking\n UBI: fix memory leak on error path\n UBI: do not forget to free internal volumes\n UBI: fix memory leak\n UBI: avoid unnecessary division operations\n UBI: fix buffer padding\n ...\n" }, { "commit": "8f421c595a9145959d8aab09172743132abdffdb", "tree": "05c374ad506a47c127007dcab4dc7018b7f93c1c", "parents": [ "48e90761b570ff57f58b726229d229729949c5bb" ], "author": { "name": "Arthur Jones", "email": "ajones@riverbed.com", "time": "Fri Jul 25 01:49:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:48 2008 -0700" }, "message": "edac: i5100 new intel chipset driver\n\nPreliminary support for the Intel 5100 MCH. CE and UE errors are reported\nalong with the current DIMM label information and other memory parameters.\n\nReasons why this is preliminary:\n\n1) This chip has 2 independent memory controllers which, for best\n perforance, use interleaved accesses to the DDR2 memory. This\n architecture does not map very well to the current edac data structures\n which depend on symmetric channel access to the interleaved data.\n Without core changes, the best I could do for now is to map both memory\n controllers to different csrows (first all ranks of controller 0, then\n all ranks of controller 1). Someone much more familiar with the edac\n core than I will probably need to come up with a more general data\n structure to handle the interleaving and de-interleaving of the two\n memory controllers.\n\n2) I have not yet tackled the de-interleaving of the rank/controller\n address space into the physical address space of the CPU. There is\n nothing fundamentally missing, it is just ending up to be a lot of\n code, and I\u0027d rather keep it separate for now, esp since it doesn\u0027t\n work yet...\n\n3) The code depends on a particular i5100 chip select to DIMM mainboard\n chip select mapping. This mapping seems obvious to me in order to\n support dual and single ranked memory, but it is not unique and DIMM\n labels could be wrong on other mainboards. There is no way to query\n this mapping that I know of.\n\n4) The code requires that the i5100 is in 32GB mode. Only 4 ranks per\n controller, 2 ranks per DIMM are supported. I do not have hardware\n (nor do I expect to have hardware anytime soon) for the 48GB (6 ranks\n per controller) mode.\n\n5) The serial presence detect code should be broken out into a \"real\"\n i2c driver so that decode-dimms.pl can work.\n\nSigned-off-by: Arthur Jones \u003cajones@riverbed.com\u003e\nSigned-off-by: Doug Thompson \u003cdougthompson@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "33670fa296860283f04a7975b8c790f101e43a6e", "tree": "61162737edbffe696f4f9b13998d192cd3be3f75", "parents": [ "c180eebe1390c2076ead6a9bc95a02efb994edb7" ], "author": { "name": "Miklos Szeredi", "email": "mszeredi@suse.cz", "time": "Fri Jul 25 01:49:02 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:48 2008 -0700" }, "message": "fuse: nfs export special lookups\n\nImplement the get_parent export operation by sending a LOOKUP request with\n\"..\" as the name.\n\nImplement looking up an inode by node ID after it has been evicted from\nthe cache. This is done by seding a LOOKUP request with \".\" as the name\n(for all file types, not just directories).\n\nThe filesystem can set the FUSE_EXPORT_SUPPORT flag in the INIT reply, to\nindicate that it supports these special lookups.\n\nThanks to John Muir for the original implementation of this feature.\n\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nCc: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nCc: David Teigland \u003cteigland@redhat.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bde74e4bc64415b142e556a34d295a52a1b7da9d", "tree": "b6bd229307ccab9b1ad03ffbc75f1f9960cd49e4", "parents": [ "cc77b1521d06be07c9bb1a4a3e1f775dcaa15093" ], "author": { "name": "Miklos Szeredi", "email": "mszeredi@suse.cz", "time": "Fri Jul 25 01:48:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "locks: add special return value for asynchronous locks\n\nUse a special error value FILE_LOCK_DEFERRED to mean that a locking\noperation returned asynchronously. This is returned by\n\n posix_lock_file() for sleeping locks to mean that the lock has been\n queued on the block list, and will be woken up when it might become\n available and needs to be retried (either fl_lmops-\u003efl_notify() is\n called or fl_wait is woken up).\n\n f_op-\u003elock() to mean either the above, or that the filesystem will\n call back with fl_lmops-\u003efl_grant() when the result of the locking\n operation is known. The filesystem can do this for sleeping as well\n as non-sleeping locks.\n\nThis is to make sure, that return values of -EAGAIN and -EINPROGRESS by\nfilesystems are not mistaken to mean an asynchronous locking.\n\nThis also makes error handling in fs/locks.c and lockd/svclock.c slightly\ncleaner.\n\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nCc: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nCc: David Teigland \u003cteigland@redhat.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "016ae219b920c4e606088761d3d6070cdf8ba706", "tree": "6bf9035016e8d9131a54cf6343e056a5dcdc74aa", "parents": [ "873b47717732c2f33a4b14de02571a4295a02f0c" ], "author": { "name": "Keika Kobayashi", "email": "kobayashi.kk@ncos.nec.co.jp", "time": "Fri Jul 25 01:48:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "per-task-delay-accounting: update taskstats for memory reclaim delay\n\nAdd members for memory reclaim delay to taskstats, and accumulate them in\n__delayacct_add_tsk() .\n\nSigned-off-by: Keika Kobayashi \u003ckobayashi.kk@ncos.nec.co.jp\u003e\nCc: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "873b47717732c2f33a4b14de02571a4295a02f0c", "tree": "aaef0fe872dbd4ce5c290f3509e5db69f9a3f04a", "parents": [ "3e85ba034deec351f02cb55ff225bbd616463841" ], "author": { "name": "Keika Kobayashi", "email": "kobayashi.kk@ncos.nec.co.jp", "time": "Fri Jul 25 01:48:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "per-task-delay-accounting: add memory reclaim delay\n\nSometimes, application responses become bad under heavy memory load.\nApplications take a bit time to reclaim memory. The statistics, how long\nmemory reclaim takes, will be useful to measure memory usage.\n\nThis patch adds accounting memory reclaim to per-task-delay-accounting for\naccounting the time of do_try_to_free_pages().\n\n\u003ci.e\u003e\n\n- When System is under low memory load,\n memory reclaim may not occur.\n\n$ free\n total used free shared buffers cached\nMem: 8197800 1577300 6620500 0 4808 1516724\n-/+ buffers/cache: 55768 8142032\nSwap: 16386292 0 16386292\n\n$ vmstat 1\nprocs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----\n r b swpd free buff cache si so bi bo in cs us sy id wa\n 0 0 0 5069748 10612 3014060 0 0 0 0 3 26 0 0 100 0\n 0 0 0 5069748 10612 3014060 0 0 0 0 4 22 0 0 100 0\n 0 0 0 5069748 10612 3014060 0 0 0 0 3 18 0 0 100 0\n\nMeasure the time of tar command.\n\n$ ls -s test.dat\n1501472 test.dat\n\n$ time tar cvf test.tar test.dat\nreal 0m13.388s\nuser 0m0.116s\nsys 0m5.304s\n\n$ ./delayget -d -p \u003cpid\u003e\nCPU count real total virtual total delay total\n 428 5528345500 5477116080 62749891\nIO count delay total\n 338 8078977189\nSWAP count delay total\n 0 0\nRECLAIM count delay total\n 0 0\n\n- When system is under heavy memory load\n memory reclaim may occur.\n\n$ vmstat 1\nprocs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----\n r b swpd free buff cache si so bi bo in cs us sy id wa\n 0 0 7159032 49724 1812 3012 0 0 0 0 3 24 0 0 100 0\n 0 0 7159032 49724 1812 3012 0 0 0 0 4 24 0 0 100 0\n 0 0 7159032 49848 1812 3012 0 0 0 0 3 22 0 0 100 0\n\nIn this case, one process uses more 8G memory\nby execution of malloc() and memset().\n\n$ time tar cvf test.tar test.dat\nreal 1m38.563s \u003c- increased by 85 sec\nuser 0m0.140s\nsys 0m7.060s\n\n$ ./delayget -d -p \u003cpid\u003e\nCPU count real total virtual total delay total\n 9021 7140446250 7315277975 923201824\nIO count delay total\n 8965 90466349669\nSWAP count delay total\n 3 21036367\nRECLAIM count delay total\n 740 61011951153\n\nIn the later case, the value of RECLAIM is increasing.\nSo, taskstats can show how much memory reclaim influences TAT.\n\nSigned-off-by: Keika Kobayashi \u003ckobayashi.kk@ncos.nec.co.jp\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujistu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "297c5d92634c809cef23d73e7b2556f2528ff7e2", "tree": "d006fa29daa24242c64cff3b66dd75fbb0003b0f", "parents": [ "0c18d7a5df82524e634637c3aec24d4cba096442" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Fri Jul 25 01:48:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "task IO accounting: provide distinct tgid/tid I/O statistics\n\nReport per-thread I/O statistics in /proc/pid/task/tid/io and aggregate\nparent I/O statistics in /proc/pid/io. This approach follows the same\nmodel used to account per-process and per-thread CPU times.\n\nAs a practial application, this allows for example to quickly find the top\nI/O consumer when a process spawns many child threads that perform the\nactual I/O work, because the aggregated I/O statistics can always be found\nin /proc/pid/io.\n\n[ Oleg Nesterov points out that we should check that the task is still\n alive before we iterate over the threads, but also says that we can do\n that fixup on top of this later. - Linus ]\n\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nCc: Matt Heaton \u003cmatt@hostmonster.com\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nAcked-by-with-comments: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b6b030fc30d169bb406b34b4fc60d99dde4a9c6", "tree": "2bf5160ccfe22107937ddc03a1acd4fc9b1ccaf2", "parents": [ "6248b1b342005a428b1247b4e89249da1528d88d" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "bsdacct: switch from global bsd_acct_struct instance to per-pidns one\n\nAllocate the structure on the first call to sys_acct(). After this each\nnamespace, that ordered the accounting, will live with this structure till\nits own death.\n\nTwo notes\n- routines, that close the accounting on fs umount time use\n the init_pid_ns\u0027s acct by now;\n- accounting routine accounts to dying task\u0027s namespace\n (also by now).\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "20fad13ac66ac001c19220d3d08b4de5b6cca6e1", "tree": "6f60869d806816547c68ae49a12f35e4183ae92d", "parents": [ "84406c153a5bfa5d8b428a0933e9d39db6b59a75" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:43 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:46 2008 -0700" }, "message": "pidns: add the struct bsd_acct_struct pointer on pid_namespace struct\n\nAll the bsdacct-related info will be stored in the area, pointer by this\none.\n\nIt will be NULL automatically for all new namespaces.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "49b5cf34727a6c1be1568ab28e89a2d9a6bf51e0", "tree": "29505ad668bfadc67a670ad4ebc5c65823a87413", "parents": [ "7394f0f6c0baab650ea9194cb1be847df646fb57" ], "author": { "name": "Jonathan Lim", "email": "jlim@sgi.com", "time": "Fri Jul 25 01:48:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:46 2008 -0700" }, "message": "accounting: account for user time when updating memory integrals\n\nAdapt acct_update_integrals() to include user time when calculating the time\ndifference. The units of acct_rss_mem1 and acct_vm_mem1 are also changed from\npages-jiffies to pages-usecs to avoid calling jiffies_to_usecs() in\nxacct_add_tsk() which might overflow.\n\nSigned-off-by: Jonathan Lim \u003cjlim@sgi.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dbda0de52618d13d1b927c7ba7bb839cfddc4e8c", "tree": "026bd6c9da6e6e81a21a6e47dcc738bddbb3fe22", "parents": [ "e49859e71e0318b564de1546bdc30fab738f9deb" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "pidns: remove find_task_by_pid, unused for a long time\n\nIt seems to me that it was a mistake marking this function as deprecated\nand scheduling it for removal, rather than resolutely removing it after\nthe last caller\u0027s death.\n\nAnyway - better late, then never.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e49859e71e0318b564de1546bdc30fab738f9deb", "tree": "74f63bbfad6ca9682404e85c3d69482663273004", "parents": [ "19b0cfcca41dd772065671ad0584e1cea0f3fd13" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "pidns: remove now unused find_pid function.\n\nThis one had the only users so far - the kill_proc, which is removed, so\ndrop this (invalid in namespaced world) call too.\n\nAnd of course - erase all references on it from comments.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "19b0cfcca41dd772065671ad0584e1cea0f3fd13", "tree": "6a8a627e2e2f3f26b02fc4228517c421e66a8043", "parents": [ "33166b1ffca5e1945246bcaa77d72a22b0d3e531" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "pidns: remove now unused kill_proc function\n\nThis function operated on a pid_t to kill a task, which is no longer valid\nin a containerized system.\n\nIt has finally lost all its users and we can safely remove it from the\ntree.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "33166b1ffca5e1945246bcaa77d72a22b0d3e531", "tree": "5e949f9f68c93ad4a487aa84aa959a5658cfd321", "parents": [ "3ae4eed34be0177a8e003411a84e4ee212adbced" ], "author": { "name": "Richard Kennedy", "email": "richard@rsk.demon.co.uk", "time": "Fri Jul 25 01:48:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "shrink struct pid by removing padding on 64 bit builds\n\nWhen struct pid is built on a 64 bit platform gcc has to insert padding to\nmaintain the correct alignment, by simply reordering its members the\nmemory usage shrinks from 88 bytes to 80.\n\nI\u0027ve successfully run with this patch on my desktop AMD64 machine.\n\nThere are no significant kernel size changes to a default config.X86_64\non the latest git v2.6.26-rc1\n\n text data bss dec hex filename\n5404828 976760 734280 7115868 6c945c vmlinux\n5404811 976760 734280 7115851 6c944b vmlinux.pid-patch\n\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3ae4eed34be0177a8e003411a84e4ee212adbced", "tree": "dc73a9e0b884c35d996cd66dca0fc8a7a06d43df", "parents": [ "4ecb90090c84210a8bd2a9d7a5906e616735873c" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:48:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "proper pid{hash,map}_init() prototypes\n\nThis patch adds proper prototypes for pid{hash,map}_init() in\ninclude/linux/pid_namespace.h\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "881adb85358309ea9c6f707394002719982ec607", "tree": "e4ffc2f6ca6013bab97bdb77b80e98b46a8d01e1", "parents": [ "6e644c3126149b65460610fe5a00d8a162092abe" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Jul 25 01:48:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:44 2008 -0700" }, "message": "proc: always do -\u003erelease\n\nCurrent two-stage scheme of removing PDE emphasizes one bug in proc:\n\n\t\topen\n\t\t\t\trmmod\n\t\t\t\tremove_proc_entry\n\t\tclose\n\n-\u003erelease won\u0027t be called because -\u003eproc_fops were cleared. In simple\ncases it\u0027s small memory leak.\n\nFor every -\u003eopen, -\u003erelease has to be done. List of openers is introduced\nwhich is traversed at remove_proc_entry() if neeeded.\n\nDiscussions with Al long ago (sigh).\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6e644c3126149b65460610fe5a00d8a162092abe", "tree": "74d324773bc25767832d19c662c7c4cf489554b3", "parents": [ "cd9a6f1078ed07fe919667b73e829f3bac485573" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:48:28 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:44 2008 -0700" }, "message": "move proc_kmsg_operations to fs/proc/internal.h\n\nThis patch moves the extern of struct proc_kmsg_operations to\nfs/proc/internal.h and adds an #include \"internal.h\" to fs/proc/kmsg.c\nso that the latter sees the former.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d805dda412346225a50af2d399d958a4bc676c38", "tree": "34ac3439f553627677ec7d3531f40cbd254a6e0c", "parents": [ "abe19b7b822a8fdbe3dbfd6e066d0698b4eefb06" ], "author": { "name": "Abdel Benamrouche", "email": "draconux@gmail.com", "time": "Fri Jul 25 01:48:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:44 2008 -0700" }, "message": "fs/partition/check.c: fix return value warning\n\nfs/partitions/check.c:381: warning: ignoring return value of ___device_add___,\n declared with attribute warn_unused_result\n\n[akpm@linux-foundation.org: multiple-return-statements-per-function are evil]\nSigned-off-by: Abdel Benamrouche \u003cdraconux@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "79885b227740b9c7d3057f2de556f4098d37cc8f", "tree": "8e61116e5bfd7aa50ed6f8359b8baf150d637780", "parents": [ "7833351b5260b3a58b54a0c2e7065001d986d749" ], "author": { "name": "Edgar E. Iglesias", "email": "edgar.iglesias@axis.com", "time": "Fri Jul 25 01:48:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:42 2008 -0700" }, "message": "elf: use ELF_CORE_EFLAGS for kcore ELF header flags\n\nELF_CORE_EFLAGS is already used by the binfmt_elf coredumper to set correct\narch specific ELF header flags on coredumps. Use it for kcore dumps as well.\nAt the moment, this affects the CRIS and the H8300 arch.\n\nSigned-off-by: Edgar E. Iglesias \u003cedgar@axis.com\u003e\nCc: Mikael Starvik \u003cstarvik@axis.com\u003e\nCc: Yoshinori Sato \u003cysato@users.sourceforge.jp\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9eefe520c814f6f62c5d36a2ddcd3fb99dfdb30e", "tree": "064ce99674f144b681f8d365d1e20d99c8078d0c", "parents": [ "f1a43f93f0f3bab418800eaccb9e2e3b5427e173" ], "author": { "name": "Nadia Derbey", "email": "Nadia.Derbey@bull.net", "time": "Fri Jul 25 01:48:08 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:42 2008 -0700" }, "message": "ipc: do not use a negative value to re-enable msgmni automatic recomputing\n\nThis patch proposes an alternative to the \"magical\npositive-versus-negative number trick\" Andrew complained about last week\nin http://lkml.org/lkml/2008/6/24/418.\n\nThis had been introduced with the patches that scale msgmni to the amount\nof lowmem. With these patches, msgmni has a registered notification\nroutine that recomputes msgmni value upon memory add/remove or ipc\nnamespace creation/ removal.\n\nWhen msgmni is changed from user space (i.e. value written to the proc\nfile), that notification routine is unregistered, and the way to make it\nregistered back is to write a negative value into the proc file. This is\nthe \"magical positive-versus-negative number trick\".\n\nTo fix this, a new proc file is introduced: /proc/sys/kernel/auto_msgmni.\nThis file acts as ON/OFF for msgmni automatic recomputing.\n\nWith this patch, the process is the following:\n1) kernel boots in \"automatic recomputing mode\"\n /proc/sys/kernel/msgmni contains the value that has been computed (depends\n on lowmem)\n /proc/sys/kernel/automatic_msgmni contains \"1\"\n\n2) echo \u003cval\u003e \u003e /proc/sys/kernel/msgmni\n . sets msg_ctlmni to \u003cval\u003e\n . de-activates automatic recomputing (i.e. if, say, some memory is added\n msgmni won\u0027t be recomputed anymore)\n . /proc/sys/kernel/automatic_msgmni now contains \"0\"\n\n3) echo \"0\" \u003e /proc/sys/kernel/automatic_msgmni\n . de-activates msgmni automatic recomputing\n this has the same effect as 2) except that msg_ctlmni\u0027s value stays\n blocked at its current value)\n\n3) echo \"1\" \u003e /proc/sys/kernel/automatic_msgmni\n . recomputes msgmni\u0027s value based on the current available memory size\n and number of ipc namespaces\n . re-activates automatic recomputing for msgmni.\n\nSigned-off-by: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nCc: Solofo Ramangalahy \u003cSolofo.Ramangalahy@bull.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "380af1b33b3ff92df5cda96329b58f5d1b6b5a53", "tree": "9a47d66c18e4aae2093a708a7509c0f188ee0bd1", "parents": [ "a1193f8ec091cd8fd309cc2982abe4499f6f2b4d" ], "author": { "name": "Manfred Spraul", "email": "manfred@colorfullife.com", "time": "Fri Jul 25 01:48:06 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:42 2008 -0700" }, "message": "ipc/sem.c: rewrite undo list locking\n\nThe attached patch:\n- reverses the locking order of ulp-\u003elock and sem_lock:\n Previously, it was first ulp-\u003elock, then inside sem_lock.\n Now it\u0027s the other way around.\n- converts the undo structure to rcu.\n\nBenefits:\n- With the old locking order, IPC_RMID could not kfree the undo structures.\n The stale entries remained in the linked lists and were released later.\n- The patch fixes a a race in semtimedop(): if both IPC_RMID and a semget() that\n recreates exactly the same id happen between find_alloc_undo() and sem_lock,\n then semtimedop() would access already kfree\u0027d memory.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Manfred Spraul \u003cmanfred@colorfullife.com\u003e\nReviewed-by: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nCc: Pierre Peiffer \u003cpeifferp@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a1193f8ec091cd8fd309cc2982abe4499f6f2b4d", "tree": "b12f2ed903fea86cfc1fd34ddb464ecfc59e5452", "parents": [ "2c0c29d414087f3b021059673c20a7088f5f1fff" ], "author": { "name": "Manfred Spraul", "email": "manfred@colorfullife.com", "time": "Fri Jul 25 01:48:06 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:42 2008 -0700" }, "message": "ipc/sem.c: convert sem_array.sem_pending to struct list_head\n\nsem_array.sem_pending is a double linked list, the attached patch converts\nit to struct list_head.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Manfred Spraul \u003cmanfred@colorfullife.com\u003e\nReviewed-by: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nCc: Pierre Peiffer \u003cpeifferp@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2c0c29d414087f3b021059673c20a7088f5f1fff", "tree": "713b226382814837840b0ed2a42b909dbb6cfaf9", "parents": [ "4daa28f6d8f5cda8ea0f55048e3c8811c384cbdd" ], "author": { "name": "Manfred Spraul", "email": "manfred@colorfullife.com", "time": "Fri Jul 25 01:48:05 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:42 2008 -0700" }, "message": "ipc/sem.c: remove unused entries from struct sem_queue\n\nsem_queue.sma and sem_queue.id were never used, the attached patch removes\nthem.\n\nSigned-off-by: Manfred Spraul \u003cmanfred@colorfullife.com\u003e\nReviewed-by: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nCc: Pierre Peiffer \u003cpeifferp@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4daa28f6d8f5cda8ea0f55048e3c8811c384cbdd", "tree": "934bfbd7932a18da8295d9e21727985d1ea16311", "parents": [ "00c2bf85d8febfcfddde63822043462b026134ff" ], "author": { "name": "Manfred Spraul", "email": "manfred@colorfullife.com", "time": "Fri Jul 25 01:48:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:42 2008 -0700" }, "message": "ipc/sem.c: convert undo structures to struct list_head\n\nThe undo structures contain two linked lists, the attached patch replaces\nthem with generic struct list_head lists.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Manfred Spraul \u003cmanfred@colorfullife.com\u003e\nCc: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nCc: Pierre Peiffer \u003cpeifferp@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f9c46d6ea5ce138a886c3a0f10a46130afab75f5", "tree": "1eedc2428866fb0b3f9f864e52ffb6eaf00911a4", "parents": [ "3219b3b7456d5cf15ba7b1fe7b1bcf15ce8840e2" ], "author": { "name": "Nadia Derbey", "email": "Nadia.Derbey@bull.net", "time": "Fri Jul 25 01:48:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:42 2008 -0700" }, "message": "idr: make idr_find rcu-safe\n\nMake idr_find rcu-safe: it can now be called inside an rcu_read critical\nsection.\n\nSigned-off-by: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nReviewed-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Manfred Spraul \u003cmanfred@colorfullife.com\u003e\nCc: Jim Houston \u003cjim.houston@comcast.net\u003e\nCc: Pierre Peiffer \u003cpeifferp@gmail.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "944ca05c7b4972f2ebf37262e0f4933d178ad6db", "tree": "5fb7558b8247bb56b7c1781808e7eaf08e8fff4e", "parents": [ "f098ad655f4dd8e3da98ffbeda9cedcc4459c01a" ], "author": { "name": "Nadia Derbey", "email": "Nadia.Derbey@bull.net", "time": "Fri Jul 25 01:47:59 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:41 2008 -0700" }, "message": "idr: error checking factorization\n\nDo some code factorization in the return code analysis.\n\nSigned-off-by: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Manfred Spraul \u003cmanfred@colorfullife.com\u003e\nCc: Jim Houston \u003cjim.houston@comcast.net\u003e\nCc: Pierre Peiffer \u003cpeifferp@gmail.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2027d1abc25ff770cc3bc936abd33570ce85d85a", "tree": "0b98b112518d3325deaaad5e8ee78c001235471e", "parents": [ "95b68dec0d52c7b8fea3698b3938cf3ab936436b" ], "author": { "name": "Nadia Derbey", "email": "Nadia.Derbey@bull.net", "time": "Fri Jul 25 01:47:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:41 2008 -0700" }, "message": "idr: change the idr structure\n\nAfter scalability problems have been detected when using the sysV ipcs, I have\nproposed to use an RCU based implementation of the IDR api instead (see\nthreads http://lkml.org/lkml/2008/4/11/212 and\nhttp://lkml.org/lkml/2008/4/29/295).\n\nThis resulted in many people asking to convert the idr API and make it rcu\nsafe (because most of the code was duplicated and thus unmaintanable and\nunreviewable).\n\nSo here is a first attempt.\n\nThe important change wrt to the idr API itself is during idr removes: idr\nlayers are freed after a grace period, instead of being moved to the free\nlist.\n\nThe important change wrt to ipcs, is that idr_find() can now be called\nlocklessly inside a rcu read critical section.\n\nHere are the results I\u0027ve got for the pmsg test sent by Manfred:\n\n 2.6.25-rc3-mm1 2.6.25-rc3-mm1+ 2.6.25-mm1 Patched 2.6.25-mm1\n1 1168441 1064021 876000 947488\n2 1094264 921059 1549592 1730685\n3 2082520 1738165 1694370 2324880\n4 2079929 1695521 404553 2400408\n5 2898758 406566 391283 3246580\n6 2921417 261275 263249 3752148\n7 3308761 126056 191742 4243142\n8 3329456 100129 141722 4275780\n\n1st column: stock 2.6.25-rc3-mm1\n2nd column: 2.6.25-rc3-mm1 + ipc patches (store ipcs into idrs)\n3nd column: stock 2.6.25-mm1\n4th column: 2.6.25-mm1 + this pacth series.\n\nThis patch:\n\nAdd an rcu_head to the idr_layer structure in order to free it after a grace\nperiod.\n\nSigned-off-by: Nadia Derbey \u003cNadia.Derbey@bull.net\u003e\nReviewed-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Manfred Spraul \u003cmanfred@colorfullife.com\u003e\nCc: Jim Houston \u003cjim.houston@comcast.net\u003e\nCc: Pierre Peiffer \u003cpeifferp@gmail.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "95b68dec0d52c7b8fea3698b3938cf3ab936436b", "tree": "f56e090e0b6831c1ba416189e9fc32bfeb3ebac9", "parents": [ "8448502cfc915f70e3f8923849ade27d472044cb" ], "author": { "name": "Chandru", "email": "chandru@in.ibm.com", "time": "Fri Jul 25 01:47:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:41 2008 -0700" }, "message": "calgary iommu: use the first kernels TCE tables in kdump\n\nkdump kernel fails to boot with calgary iommu and aacraid driver on a x366\nbox. The ongoing dma\u0027s of aacraid from the first kernel continue to exist\nuntil the driver is loaded in the kdump kernel. Calgary is initialized\nprior to aacraid and creation of new tce tables causes wrong dma\u0027s to\noccur. Here we try to get the tce tables of the first kernel in kdump\nkernel and use them. While in the kdump kernel we do not allocate new tce\ntables but instead read the base address register contents of calgary\niommu and use the tables that the registers point to. With these changes\nthe kdump kernel and hence aacraid now boots normally.\n\nSigned-off-by: Chandru Siddalingappa \u003cchandru@in.ibm.com\u003e\nAcked-by: Muli Ben-Yehuda \u003cmuli@il.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3da1c84c00c7e5fa8348336bd8c342f9128b0f14", "tree": "af960c65a670319fa86846a493a6d97f9fb37cd9", "parents": [ "8616a89ab761239c963eea3a63be383f127cc7e8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: make get_online_cpus() useable for work-\u003efunc()\n\nworkqueue_cpu_callback(CPU_DEAD) flushes cwq-\u003ethread under\ncpu_maps_update_begin(). This means that the multithreaded workqueues\ncan\u0027t use get_online_cpus() due to the possible deadlock, very bad and\nvery old problem.\n\nIntroduce the new state, CPU_POST_DEAD, which is called after\ncpu_hotplug_done() but before cpu_maps_update_done().\n\nChange workqueue_cpu_callback() to use CPU_POST_DEAD instead of CPU_DEAD.\nThis means that create/destroy functions can\u0027t rely on get_online_cpus()\nany longer and should take cpu_add_remove_lock instead.\n\n[akpm@linux-foundation.org: fix CONFIG_SMP\u003dn]\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "db700897224b5ebdf852f2d38920ce428940d059", "tree": "98f0052929e79b35393352addde70fa5e97b8dee", "parents": [ "1a4d9b0aa0d3c50314e57525a5e5ec2cfc48b4c8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: implement flush_work()\n\nMost of users of flush_workqueue() can be changed to use cancel_work_sync(),\nbut sometimes we really need to wait for the completion and cancelling is not\nan option. schedule_on_each_cpu() is good example.\n\nAdd the new helper, flush_work(work), which waits for the completion of the\nspecific work_struct. More precisely, it \"flushes\" the result of of the last\nqueue_work() which is visible to the caller.\n\nFor example, this code\n\n\tqueue_work(wq, work);\n\t/* WINDOW */\n\tqueue_work(wq, work);\n\n\tflush_work(work);\n\ndoesn\u0027t necessary work \"as expected\". What can happen in the WINDOW above is\n\n\t- wq starts the execution of work-\u003efunc()\n\n\t- the caller migrates to another CPU\n\nnow, after the 2nd queue_work() this work is active on the previous CPU, and\nat the same time it is queued on another. In this case flush_work(work) may\nreturn before the first work-\u003efunc() completes.\n\nIt is trivial to add another helper\n\n\tint flush_work_sync(struct work_struct *work)\n\t{\n\t\treturn flush_work(work) || wait_on_work(work);\n\t}\n\nwhich works \"more correctly\", but it has to iterate over all CPUs and thus\nit much slower than flush_work().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nAcked-by: Jarek Poplawski \u003cjarkao2@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a94e2d408eaedbd85aae259621d46fafc10479a2", "tree": "d853f7b2e183875c6ad90fb6ab38e084b037d043", "parents": [ "182c515fd2a942623aed4e4e0e0b37fe96571b05" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "coredump: kill mm-\u003ecore_done\n\nNow that we have core_state-\u003edumper list we can use it to wake up the\nsub-threads waiting for the coredump completion.\n\nThis uglifies the code and .text grows by 47 bytes, but otoh mm_struct\nlessens by sizeof(struct completion). Also, with this change we can\ndecouple exit_mm() from the coredumping code.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b564daf806d492dd4f7afe9b6c83b8d35d137669", "tree": "fbd6d186035b9a0a270fca97887da5d6b106a60c", "parents": [ "9d5b327bf198d2720666de958dcc2ae219d86952" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "coredump: construct the list of coredumping threads at startup time\n\nbinfmt-\u003ecore_dump() has to iterate over the all threads in system in order\nto find the coredumping threads and construct the list using the\nGFP_ATOMIC allocations.\n\nWith this patch each thread allocates the list node on exit_mm()\u0027s stack and\nadds itself to the list.\n\nThis allows us to do further changes:\n\n\t- simplify -\u003ecore_dump()\n\n\t- change exit_mm() to clear -\u003emm first, then wait for -\u003ecore_done.\n\t this makes the coredumping process visible to oom_kill\n\n\t- kill mm-\u003ecore_done\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c5f1cc8c1828486a61ab3e575da6e2c62b34d399", "tree": "9cc88e7d1dae063482e1e9117ded747578cbd7ad", "parents": [ "8cd9c249128a59e8e833d454a784b0cbd338d468" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: turn core_state-\u003enr_threads into atomic_t\n\nTurn core_state-\u003enr_threads into atomic_t and kill now unneeded\ndown_write(\u0026mm-\u003emmap_sem) in exit_mm().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "999d9fc1670bc082928b93b11d1f2e0e417d973c", "tree": "e540e7fd2fab970ba2be5e39ac9f8282a373bc24", "parents": [ "32ecb1f26dd50eeaac4e3f4dea4541c97848e459" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: move mm-\u003ecore_waiters into struct core_state\n\nMove mm-\u003ecore_waiters into \"struct core_state\" allocated on stack. This\nshrinks mm_struct a little bit and allows further changes.\n\nThis patch mostly does s/core_waiters/core_state. The only essential\nchange is that coredump_wait() must clear mm-\u003ecore_state before return.\n\nThe coredump_wait()\u0027s path is uglified and .text grows by 30 bytes, this\nis fixed by the next patch.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "32ecb1f26dd50eeaac4e3f4dea4541c97848e459", "tree": "4c2f3b6af9ff6babf2f395432de8e870508f2ec3", "parents": [ "24d5288f06ed8b3a368eba967d587cdb012dfdf7" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: turn mm-\u003ecore_startup_done into the pointer to struct core_state\n\nmm-\u003ecore_startup_done points to \"struct completion startup_done\" allocated\non the coredump_wait()\u0027s stack. Introduce the new structure, core_state,\nwhich holds this \"struct completion\". This way we can add more info\nvisible to the threads participating in coredump without enlarging\nmm_struct.\n\nNo changes in affected .o files.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "246bb0b1deb29726990620d8b5e55ca29f331362", "tree": "5173b9e0c1d18934a8b2693c690a7162acb1bca8", "parents": [ "7b34e4283c685f5cc6ba6d30e939906eee0d4bcf" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "kill PF_BORROWED_MM in favour of PF_KTHREAD\n\nKill PF_BORROWED_MM. Change use_mm/unuse_mm to not play with -\u003eflags, and\ndo s/PF_BORROWED_MM/PF_KTHREAD/ for a couple of other users.\n\nNo functional changes yet. But this allows us to do further\nfixes/cleanups.\n\noom_kill/ptrace/etc often check \"p-\u003emm !\u003d NULL\" to filter out the\nkthreads, this is wrong because of use_mm(). The problem with\nPF_BORROWED_MM is that we need task_lock() to avoid races. With this\npatch we can check PF_KTHREAD directly, or use a simple lockless helper:\n\n\t/* The result must not be dereferenced !!! */\n\tstruct mm_struct *__get_task_mm(struct task_struct *tsk)\n\t{\n\t\tif (tsk-\u003eflags \u0026 PF_KTHREAD)\n\t\t\treturn NULL;\n\t\treturn tsk-\u003emm;\n\t}\n\nNote also ecard_task(). It runs with -\u003emm !\u003d NULL, but it\u0027s the kernel\nthread without PF_BORROWED_MM.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7b34e4283c685f5cc6ba6d30e939906eee0d4bcf", "tree": "6822edd5c63db79e97b8c5379a18a058bc5405ff", "parents": [ "3d749b9e676b26584a47e75c235aa6f69d0697ae" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "introduce PF_KTHREAD flag\n\nIntroduce the new PF_KTHREAD flag to mark the kernel threads. It is set\nby INIT_TASK() and copied to the forked childs (we could set it in\nkthreadd() along with PF_NOFREEZE instead).\n\ndaemonize() was changed as well. In that case testing of PF_KTHREAD is\nracy, but daemonize() is hopeless anyway.\n\nThis flag is cleared in do_execve(), before search_binary_handler().\nProbably not the best place, we can do this in exec_mmap() or in\nstart_thread(), or clear it along with PF_FORKNOEXEC. But I think this\ndoesn\u0027t matter in practice, and if do_execve() fails kthread should die\nsoon.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "364d3c13c17f45da6d638011078d4c4d3070d719", "tree": "2e6215dd458010cd92786ac7d67053c5d5171c74", "parents": [ "f22ab814a24e654b1de24db0c5f8b57b5ab2026a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "ptrace: give more respect to SIGKILL\n\nptrace_stop() has some complicated checks to prevent the scheduling in the\nTASK_TRACED state with the pending SIGKILL, but these checks are racy, and\nthey depend on arch_ptrace_stop_needed().\n\nThis patch assumes that the traced task should die asap if it was killed by\nSIGKILL, in that case schedule()-\u003esignal_pending_state() has no reason to\nignore the TASK_WAKEKILL part of TASK_TRACED, and we can kill this nasty\nspecial case.\n\nNote: do_exit()-\u003eptrace_notify() is special, the killed task can already\ndequeue SIGKILL at this point. Another indication that fatal_signal_pending()\nis not exactly right.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f22ab814a24e654b1de24db0c5f8b57b5ab2026a", "tree": "827f3fe1c94ba9cfd180f199ea6d2dc2dfa885df", "parents": [ "bc64efd220dcd4449aef8dd2564d73127b583b09" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:47:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "include/asm/ptrace.h userspace headers cleanup\n\nThis patch contains the following cleanups for the asm/ptrace.h\nuserspace headers:\n\n- include/asm-generic/Kbuild.asm already lists ptrace.h, remove\n the superfluous listings in the Kbuild files of the following\n architectures:\n - cris\n - frv\n - powerpc\n - x86\n- don\u0027t expose function prototypes and macros to userspace:\n - arm\n - blackfin\n - cris\n - mn10300\n - parisc\n- remove #ifdef CONFIG_\u0027s around #define\u0027s:\n - blackfin\n - m68knommu\n- sh: AFAIK __SH5__ should work in both kernel and userspace,\n no need to leak CONFIG_SUPERH64 to userspace\n- xtensa: cosmetical change to remove empty\n #ifndef __ASSEMBLY__ #else #endif\n from the userspace headers\n\nNot changed by this patch is the fact that the following architectures\nhave a different struct pt_regs depending on CONFIG_ variables:\n- h8300\n- m68knommu\n- mips\n\nThis does not work in userspace.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Greg Ungerer \u003cgerg@uclinux.org\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nAcked-by: Grant Grundler \u003cgrundler@parisc-linux.org\u003e\nAcked-by: Jesper Nilsson \u003cjesper.nilsson@axis.com\u003e\nAcked-by: Chris Zankel \u003cchris@zankel.net\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nAcked-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "12b9804419cfb1c1bdac413f6c373af3b88d154b", "tree": "eff535da51774e53395a9fec0418bc5332009d3e", "parents": [ "cede86acd8bd5d2205dec28db8ac86410a3a19e8" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:19 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "res_counter: limit change support ebusy\n\nAdd an interface to set limit. This is necessary to memory resource\ncontroller because it shrinks usage at set limit.\n\nOther controllers may not need this interface to shrink usage because\nshrinking is not necessary or impossible.\n\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c9b0ed51483cc2fc42bb801b6675c4231b0e4634", "tree": "1d322b4bfcaad3296752f6efcab918d1b13b50a3", "parents": [ "69029cd550284e32de13d6dd2f77b723c8a0e444" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:15 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: helper function for relcaim from shmem.\n\nA new call, mem_cgroup_shrink_usage() is added for shmem handling and\nrelacing non-standard usage of mem_cgroup_charge/uncharge.\n\nNow, shmem calls mem_cgroup_charge() just for reclaim some pages from\nmem_cgroup. In general, shmem is used by some process group and not for\nglobal resource (like file caches). So, it\u0027s reasonable to reclaim pages\nfrom mem_cgroup where shmem is mainly used.\n\n[hugh@veritas.com: shmem_getpage release page sooner]\n[hugh@veritas.com: mem_cgroup_shrink_usage css_put]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "69029cd550284e32de13d6dd2f77b723c8a0e444", "tree": "b57b87e5025b6c01722f39302cb98d0dfcd58940", "parents": [ "e8589cc189f96b87348ae83ea4db38eaac624135" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:14 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: remove refcnt from page_cgroup\n\nmemcg: performance improvements\n\nPatch Description\n 1/5 ... remove refcnt fron page_cgroup patch (shmem handling is fixed)\n 2/5 ... swapcache handling patch\n 3/5 ... add helper function for shmem\u0027s memory reclaim patch\n 4/5 ... optimize by likely/unlikely ppatch\n 5/5 ... remove redundunt check patch (shmem handling is fixed.)\n\nUnix bench result.\n\n\u003d\u003d 2.6.26-rc2-mm1 + memory resource controller\nExecl Throughput 2915.4 lps (29.6 secs, 3 samples)\nC Compiler Throughput 1019.3 lpm (60.0 secs, 3 samples)\nShell Scripts (1 concurrent) 5796.0 lpm (60.0 secs, 3 samples)\nShell Scripts (8 concurrent) 1097.7 lpm (60.0 secs, 3 samples)\nShell Scripts (16 concurrent) 565.3 lpm (60.0 secs, 3 samples)\nFile Read 1024 bufsize 2000 maxblocks 1022128.0 KBps (30.0 secs, 3 samples)\nFile Write 1024 bufsize 2000 maxblocks 544057.0 KBps (30.0 secs, 3 samples)\nFile Copy 1024 bufsize 2000 maxblocks 346481.0 KBps (30.0 secs, 3 samples)\nFile Read 256 bufsize 500 maxblocks 319325.0 KBps (30.0 secs, 3 samples)\nFile Write 256 bufsize 500 maxblocks 148788.0 KBps (30.0 secs, 3 samples)\nFile Copy 256 bufsize 500 maxblocks 99051.0 KBps (30.0 secs, 3 samples)\nFile Read 4096 bufsize 8000 maxblocks 2058917.0 KBps (30.0 secs, 3 samples)\nFile Write 4096 bufsize 8000 maxblocks 1606109.0 KBps (30.0 secs, 3 samples)\nFile Copy 4096 bufsize 8000 maxblocks 854789.0 KBps (30.0 secs, 3 samples)\nDc: sqrt(2) to 99 decimal places 126145.2 lpm (30.0 secs, 3 samples)\n\n INDEX VALUES\nTEST BASELINE RESULT INDEX\n\nExecl Throughput 43.0 2915.4 678.0\nFile Copy 1024 bufsize 2000 maxblocks 3960.0 346481.0 875.0\nFile Copy 256 bufsize 500 maxblocks 1655.0 99051.0 598.5\nFile Copy 4096 bufsize 8000 maxblocks 5800.0 854789.0 1473.8\nShell Scripts (8 concurrent) 6.0 1097.7 1829.5\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n FINAL SCORE 991.3\n\n\u003d\u003d 2.6.26-rc2-mm1 + this set \u003d\u003d\nExecl Throughput 3012.9 lps (29.9 secs, 3 samples)\nC Compiler Throughput 981.0 lpm (60.0 secs, 3 samples)\nShell Scripts (1 concurrent) 5872.0 lpm (60.0 secs, 3 samples)\nShell Scripts (8 concurrent) 1120.3 lpm (60.0 secs, 3 samples)\nShell Scripts (16 concurrent) 578.0 lpm (60.0 secs, 3 samples)\nFile Read 1024 bufsize 2000 maxblocks 1003993.0 KBps (30.0 secs, 3 samples)\nFile Write 1024 bufsize 2000 maxblocks 550452.0 KBps (30.0 secs, 3 samples)\nFile Copy 1024 bufsize 2000 maxblocks 347159.0 KBps (30.0 secs, 3 samples)\nFile Read 256 bufsize 500 maxblocks 314644.0 KBps (30.0 secs, 3 samples)\nFile Write 256 bufsize 500 maxblocks 151852.0 KBps (30.0 secs, 3 samples)\nFile Copy 256 bufsize 500 maxblocks 101000.0 KBps (30.0 secs, 3 samples)\nFile Read 4096 bufsize 8000 maxblocks 2033256.0 KBps (30.0 secs, 3 samples)\nFile Write 4096 bufsize 8000 maxblocks 1611814.0 KBps (30.0 secs, 3 samples)\nFile Copy 4096 bufsize 8000 maxblocks 847979.0 KBps (30.0 secs, 3 samples)\nDc: sqrt(2) to 99 decimal places 128148.7 lpm (30.0 secs, 3 samples)\n\n INDEX VALUES\nTEST BASELINE RESULT INDEX\n\nExecl Throughput 43.0 3012.9 700.7\nFile Copy 1024 bufsize 2000 maxblocks 3960.0 347159.0 876.7\nFile Copy 256 bufsize 500 maxblocks 1655.0 101000.0 610.3\nFile Copy 4096 bufsize 8000 maxblocks 5800.0 847979.0 1462.0\nShell Scripts (8 concurrent) 6.0 1120.3 1867.2\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n FINAL SCORE 1004.6\n\nThis patch:\n\nRemove refcnt from page_cgroup().\n\nAfter this,\n\n * A page is charged only when !page_mapped() \u0026\u0026 no page_cgroup is assigned.\n\t* Anon page is newly mapped.\n\t* File page is added to mapping-\u003etree.\n\n * A page is uncharged only when\n\t* Anon page is fully unmapped.\n\t* File page is removed from LRU.\n\nThere is no change in behavior from user\u0027s view.\n\nThis patch also removes unnecessary calls in rmap.c which was used only for\nrefcnt mangement.\n\n[akpm@linux-foundation.org: fix warning]\n[hugh@veritas.com: fix shmem_unuse_inode charging]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e8589cc189f96b87348ae83ea4db38eaac624135", "tree": "6693422dc81e6da78c4ad892b0d326fb7f946dda", "parents": [ "508b7be0a5b06b64203512ed9b34191cddc83f56" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: better migration handling\n\nThis patch changes page migration under memory controller to use a\ndifferent algorithm. (thanks to Christoph for new idea.)\n\nBefore:\n - page_cgroup is migrated from an old page to a new page.\nAfter:\n - a new page is accounted , no reuse of page_cgroup.\n\nPros:\n\n - We can avoid compliated lock depndencies and races in migration.\n\nCons:\n\n - new param to mem_cgroup_charge_common().\n\n - mem_cgroup_getref() is added for handling ref_cnt ping-pong.\n\nThis version simplifies complicated lock dependency in page migraiton\nunder memory resource controller.\n\n new refcnt sequence is following.\n\na mapped page:\n prepage_migration() ..... +1 to NEW page\n try_to_unmap() ..... all refs to OLD page is gone.\n move_pages() ..... +1 to NEW page if page cache.\n remap... ..... all refs from *map* is added to NEW one.\n end_migration() ..... -1 to New page.\n\n page\u0027s mapcount + (page_is_cache) refs are added to NEW one.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e885dcde75685e09f23cffae1f6d5169c105b8a0", "tree": "711a91e83fad632c194700839d3e47631aee677a", "parents": [ "856c13aa1ff6136c1968414fdea5938ea9d5ebf2" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Fri Jul 25 01:47:06 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "cgroup_clone: use pid of newly created task for new cgroup\n\ncgroup_clone creates a new cgroup with the pid of the task. This works\ncorrectly for unshare, but for clone cgroup_clone is called from\ncopy_namespaces inside copy_process, which happens before the new pid is\ncreated. As a result, the new cgroup was created with current\u0027s pid.\nThis patch:\n\n\t1. Moves the call inside copy_process to after the new pid\n\t is created\n\t2. Passes the struct pid into ns_cgroup_clone (as it is not\n\t yet attached to the task)\n\t3. Passes a name from ns_cgroup_clone() into cgroup_clone()\n\t so as to keep cgroup_clone() itself simpler\n\t4. Uses pid_vnr() to get the process id value, so that the\n\t pid used to name the new cgroup is always the pid as it\n\t would be known to the task which did the cloning or\n\t unsharing. I think that is the most intuitive thing to\n\t do. This way, task t1 does clone(CLONE_NEWPID) to get\n\t t2, which does clone(CLONE_NEWPID) to get t3, then the\n\t cgroup for t3 will be named for the pid by which t2 knows\n\t t3.\n\n(Thanks to Dan Smith for finding the main bug)\n\nChangelog:\n\tJune 11: Incorporate Paul Menage\u0027s feedback: don\u0027t pass\n\t NULL to ns_cgroup_clone from unshare, and reduce\n\t\t patch size by using \u0027nodename\u0027 in cgroup_clone.\n\tJune 10: Original version\n\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Serge Hallyn \u003cserge@us.ibm.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nTested-by: Dan Smith \u003cdanms@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "856c13aa1ff6136c1968414fdea5938ea9d5ebf2", "tree": "deee908f253c77cbcb868a915e45bfb2ed99383c", "parents": [ "f92523e3a7861f5dbd76021e0719a35fe8771f2d" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: convert res_counter_write() to be a cgroups write_string() handler\n\nCurrently res_counter_write() is a raw file handler even though it\u0027s\nultimately taking a number, since in some cases it wants to\npre-process the string when converting it to a number.\n\nThis patch converts res_counter_write() from a raw file handler to a\nwrite_string() handler; this allows some of the boilerplate\ncopying/locking/checking to be removed, and simplies the cleanup path,\nsince these functions are now performed by the cgroups framework.\n\n[lizf@cn.fujitsu.com: build fix]\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "84eea842886ac35020be6043e04748ed22014359", "tree": "acd2bb7c3bc267a032b5e637c598708f38c68cb3", "parents": [ "e788e066c651b1bbf4a927dc95395c1aa13be436" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:00 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroups: misc cleanups to write_string patchset\n\nThis patch contains cleanups suggested by reviewers for the recent\nwrite_string() patchset:\n\n- pair cgroup_lock_live_group() with cgroup_unlock() in cgroup.c for\n clarity, rather than directly unlocking cgroup_mutex.\n\n- make the return type of cgroup_lock_live_group() a bool\n\n- use a #define\u0027d constant for the local buffer size in read/write functions\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e788e066c651b1bbf4a927dc95395c1aa13be436", "tree": "8ffb80dc5917ba5b77e17ab2b71afcea3aadfef8", "parents": [ "db3b14978abc02041046ed8353f0899cb58ffffc" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:59 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: move the release_agent file to use typed handlers\n\nAdds cgroup_release_agent_write() and cgroup_release_agent_show()\nmethods to handle writing/reading the path to a cgroup hierarchy\u0027s\nrelease agent. As a result, cgroup_common_file_read() is now unnecessary.\n\nAs part of the change, a previously-tolerated race in\ncgroup_release_agent() is avoided by copying the current\nrelease_agent_path prior to calling call_usermode_helper().\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "db3b14978abc02041046ed8353f0899cb58ffffc", "tree": "355ba027c6354bd13bcbb5318e8478b3de4599e9", "parents": [ "ce16b49d37e748574f7fabc2726268d542d0aa1a" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: add write_string cgroup control file method\n\nThis patch adds a write_string() method for cgroups control files. The\nsemantics are that a buffer is copied from userspace to kernelspace\nand the handler function invoked on that buffer. The buffer is\nguaranteed to be nul-terminated, and no longer than max_write_len\n(defaulting to 64 bytes if unspecified). Later patches will convert\nexisting raw file write handlers in control group subsystems to use\nthis method.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ce16b49d37e748574f7fabc2726268d542d0aa1a", "tree": "dc079efb12661484efa7dd2659a38cfd7b3f3fd5", "parents": [ "8947f9d5b361ce927be6d5c11fed57905b7a4100" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: clean up whitespace in struct cftype\n\nThis patch removes some extraneous spaces from method declarations in\nstruct cftype, to fit in with conventional kernel style.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f2992db2a4f7ae10f61d5bc68c7c1528cec639e2", "tree": "a21366b27d11dbaef7aa810d50a935ef08538813", "parents": [ "7e9abd89cbdf9b73d327d8173343abce9022609b" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:46:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "Mark res_counter_charge(_locked) with __must_check\n\nIgnoring their return values may result in counter underflow in the future -\nwhen the value charged will be uncharged (or in \"leaks\" - when the value is\nnot uncharged).\n\nThis also prevents from using charging routines to decrement the\ncounter value (i.e. uncharge it) ;)\n\n(Current code works OK with res_counter, however :) )\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ], "next": "657d3bfa98e542271b449f8cd84c7501ae2b2255" }