)]}' { "log": [ { "commit": "7d12e780e003f93433d49ce78cfedf4b4c52adc5", "tree": "6748550400445c11a306b132009f3001e3525df8", "parents": [ "da482792a6d1a3fbaaa25fae867b343fb4db3246" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Thu Oct 05 14:55:46 2006 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@warthog.cambridge.redhat.com", "time": "Thu Oct 05 15:10:12 2006 +0100" }, "message": "IRQ: Maintain regs pointer globally rather than passing to IRQ handlers\n\nMaintain a per-CPU global \"struct pt_regs *\" variable which can be used instead\nof passing regs around manually through all ~1800 interrupt handlers in the\nLinux kernel.\n\nThe regs pointer is used in few places, but it potentially costs both stack\nspace and code to pass it around. On the FRV arch, removing the regs parameter\nfrom all the genirq function results in a 20% speed up of the IRQ exit path\n(ie: from leaving timer_interrupt() to leaving do_IRQ()).\n\nWhere appropriate, an arch may override the generic storage facility and do\nsomething different with the variable. On FRV, for instance, the address is\nmaintained in GR28 at all times inside the kernel as part of general exception\nhandling.\n\nHaving looked over the code, it appears that the parameter may be handed down\nthrough up to twenty or so layers of functions. Consider a USB character\ndevice attached to a USB hub, attached to a USB controller that posts its\ninterrupts through a cascaded auxiliary interrupt controller. A character\ndevice driver may want to pass regs to the sysrq handler through the input\nlayer which adds another few layers of parameter passing.\n\nI\u0027ve build this code with allyesconfig for x86_64 and i386. I\u0027ve runtested the\nmain part of the code on FRV and i386, though I can\u0027t test most of the drivers.\nI\u0027ve also done partial conversion for powerpc and MIPS - these at least compile\nwith minimal configurations.\n\nThis will affect all archs. Mostly the changes should be relatively easy.\nTake do_IRQ(), store the regs pointer at the beginning, saving the old one:\n\n\tstruct pt_regs *old_regs \u003d set_irq_regs(regs);\n\nAnd put the old one back at the end:\n\n\tset_irq_regs(old_regs);\n\nDon\u0027t pass regs through to generic_handle_irq() or __do_IRQ().\n\nIn timer_interrupt(), this sort of change will be necessary:\n\n\t-\tupdate_process_times(user_mode(regs));\n\t-\tprofile_tick(CPU_PROFILING, regs);\n\t+\tupdate_process_times(user_mode(get_irq_regs()));\n\t+\tprofile_tick(CPU_PROFILING);\n\nI\u0027d like to move update_process_times()\u0027s use of get_irq_regs() into itself,\nexcept that i386, alone of the archs, uses something other than user_mode().\n\nSome notes on the interrupt handling in the drivers:\n\n (*) input_dev() is now gone entirely. The regs pointer is no longer stored in\n the input_dev struct.\n\n (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does\n something different depending on whether it\u0027s been supplied with a regs\n pointer or not.\n\n (*) Various IRQ handler function pointers have been moved to type\n irq_handler_t.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)\n" }, { "commit": "ede65f3926a284f07765b94d6d9fd10d63791174", "tree": "c608aca4389cd178d83ce7c0f80a498134e57150", "parents": [ "cf3c769b4b0dd1146da84d5cf045dcfe53bd0f13" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Mon Jun 26 00:25:09 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:20 2006 -0700" }, "message": "[PATCH] hangcheck: remove monotomic_clock on x86\n\nJohn\u0027s about to nuke x86\u0027s monotonic clock without grepping for it first. The\npatch lamely borrows the ppc64 code for x86.\n\nhangcheck-timer shouldn\u0027t be doing it this way\n\na) HAVE_MONOTONIC should be CONFIG_MONOTONIC_CLOCK and it should be defined\n in arch/xxx/Kconfig.\n\nb) That ifdef tangle shouldn\u0027t be in hangcheck-timer.c. It should be using\n arch-provided helper functions, which CONFIG_MONOTONIC_CLOCK-enabling\n architectures implement in arch/something.c\n\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nAcked-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3633b0475eb269dcb85923b23b321505f06b9488", "tree": "48e4f85a5f02ba4c56ebc7acbf963372f5f5f573", "parents": [ "32f65f274602b43e8f48314e9769f254da1d8323" ], "author": { "name": "Jan Glauber", "email": "jan.glauber@de.ibm.com", "time": "Wed Feb 01 03:06:34 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Feb 01 08:53:24 2006 -0800" }, "message": "[PATCH] s390: hangcheck timer support\n\nRemove useless s390 define from hangcheck-timer, remove wrong definition of a\nTOD second and other s390 ifdefs. Use monotonic_clock instead.\n\nAdd hangcheck-timer option, copied from drivers/char/Kconfig. This is ugly\nbut unless we have a big Kconfig cleanup we cannot include\ndrivers/char/Kconfig...\n\nSigned-off-by: Jan Glauber \u003cjan.glauber@de.ibm.com\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "347a8dc3b815f0c0fa62a1df075184ffe4cbdcf1", "tree": "a6ec76690127e87fe6efa42b6238caadd6c07e7b", "parents": [ "9bbc8346fb21fad3f678220b067450e436e45dbf" ], "author": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Fri Jan 06 00:19:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:53 2006 -0800" }, "message": "[PATCH] s390: cleanup Kconfig\n\nSanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X,\nARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by\nS390, 64BIT and COMPAT.\n\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0d078f6f96809c95c69b99d6605a502b0ac63d3d", "tree": "1b4691abab5f96f2aa8a5217a2701f181b41940d", "parents": [ "4276d32260662d5401a15a0a46e506fb5c8ab563" ], "author": { "name": "Brian Gerst", "email": "bgerst@didntduck.org", "time": "Sun Oct 30 14:59:20 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:10 2005 -0800" }, "message": "[PATCH] CONFIG_IA32\n\nAdd CONFIG_X86_32 for i386. This allows selecting options that only apply\nto 32-bit systems.\n\n(X86 \u0026\u0026 !X86_64) becomes X86_32\n(X86 || X86_64) becomes X86\n\nSigned-off-by: Brian Gerst \u003cbgerst@didntduck.org\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8d06afab73a75f40ae2864e6c296356bab1ab473", "tree": "1d9c8c24a1024a12a4e8df841fba5809fa914356", "parents": [ "7c352bdf048811b8128019ffc1e886161e09c11c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 09 13:10:40 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 14:03:48 2005 -0700" }, "message": "[PATCH] timer initialization cleanup: DEFINE_TIMER\n\nClean up timer initialization by introducing DEFINE_TIMER a\u0027la\nDEFINE_SPINLOCK. Build and boot-tested on x86. A similar patch has been\nbeen in the -RT tree for some time.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "970d32443e3d0be57a5cdc3de3752f528424b73d", "tree": "cf39589a581d461d5ed4a9311cb236dbe8544453", "parents": [ "f82567e55fcd25bb7addf2cfd8b79f36f409dc2e" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:55:59 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:44 2005 -0700" }, "message": "[PATCH] In hangcheck-timer.c call emergency_restart()\n\nIf we\u0027ve hung a clean reboot does not sound like a real\noption.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "696f9486d0207d499391004f5bc9bd7c0e6ae82f", "tree": "66d37498afdaf90ffca26adf8f872867fea3c0e5", "parents": [ "a40920b42ae232fac514cc4a1eb92996114af340" ], "author": { "name": "Joel Becker", "email": "Joel.Becker@oracle.com", "time": "Sun May 01 08:59:08 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sun May 01 08:59:08 2005 -0700" }, "message": "[PATCH] hangcheck-timer: Update to 0.9.0.\n\nI recently realized that the in-kernel copy of hangcheck-timer was quite\nstale. Here\u0027s the latest. It adds support for s390, ppc64, and ia64 too.\n\nSigned-off-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }