)]}' { "log": [ { "commit": "335d7afbfb71faac833734a94240c1e07cf0ead8", "tree": "483a24c6005af6eb25a256d92a697411d94a7458", "parents": [ "22a867d81707b0a2720bb5f65255265b95d30526" ], "author": { "name": "Gerald Schaefer", "email": "gerald.schaefer@de.ibm.com", "time": "Mon Nov 22 15:47:36 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:05:34 2010 +0100" }, "message": "mutexes, sched: Introduce arch_mutex_cpu_relax()\n\nThe spinning mutex implementation uses cpu_relax() in busy loops as a\ncompiler barrier. Depending on the architecture, cpu_relax() may do more\nthan needed in this specific mutex spin loops. On System z we also give\nup the time slice of the virtual cpu in cpu_relax(), which prevents\neffective spinning on the mutex.\n\nThis patch replaces cpu_relax() in the spinning mutex code with\narch_mutex_cpu_relax(), which can be defined by each architecture that\nselects HAVE_ARCH_MUTEX_CPU_RELAX. The default is still cpu_relax(), so\nthis patch should not affect other architectures than System z for now.\n\nSigned-off-by: Gerald Schaefer \u003cgerald.schaefer@de.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1290437256.7455.4.camel@thinkpad\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "45f81b1c96d9793e47ce925d257ea693ce0b193e", "tree": "2260824b11e36d3f392d1795611795541dfc89d0", "parents": [ "2d1d7126bbde53989f1d7de174816c123bb7ecb0" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Oct 29 12:33:43 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Oct 29 14:45:29 2010 -0400" }, "message": "jump label: Add work around to i386 gcc asm goto bug\n\nOn i386 (not x86_64) early implementations of gcc would have a bug\nwith asm goto causing it to produce code like the following:\n\n(This was noticed by Peter Zijlstra)\n\n 56 pushl 0\n 67 nopl jmp 0x6f\n popl\n jmp 0x8c\n\n 6f mov\n test\n je 0x8c\n\n 8c mov\n call *(%esp)\n\nThe jump added in the asm goto skipped over the popl that matched\nthe pushl 0, which lead up to a quick crash of the system when\nthe jump was enabled. The nopl is defined in the asm goto () statement\nand when tracepoints are enabled, the nop changes to a jump to the label\nthat was specified by the asm goto. asm goto is suppose to tell gcc that\nthe code in the asm might jump to an external label. Here gcc obviously\nfails to make that work.\n\nThe bug report for gcc is here:\n\n http://gcc.gnu.org/bugzilla/show_bug.cgi?id\u003d46226\n\nThe bug only appears on x86 when not compiled with\n-maccumulate-outgoing-args. This option is always set on x86_64 and it\nis also the work around for a function graph tracer i386 bug.\n(See commit: 746357d6a526d6da9d89a2ec645b28406e959c2e)\nThis explains why the bug only showed up on i386 when function graph\ntracer was not enabled.\n\nThis patch now adds a CONFIG_JUMP_LABEL option that is default\noff instead of using jump labels by default. When jump labels are\nenabled, the -maccumulate-outgoing-args will be used (causing a\nslightly larger kernel image on i386). This option will exist\nuntil we have a way to detect if the gcc compiler in use is safe\nto use on all configurations without the work around.\n\nNote, there exists such a test, but for now we will keep the enabling\nof jump label as a manual option.\n\nArchs that know the compiler is safe with asm goto, may choose to\nselect JUMP_LABEL and enable it by default.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCause-discovered-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: David Daney \u003cddaney@caviumnetworks.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nCc: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Richard Henderson \u003crth@redhat.com\u003e\nLKML-Reference: \u003c1288028746.3673.11.camel@laptop\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a5a2bad55de89a0adf7d6f783cb87ab7eb1a894f", "tree": "452cb8addc26f5c79fdd4e2fea92c78dc17fc8e8", "parents": [ "d0303d71c2fb9bcb90a8d48e6462c78c86f70ce6", "46eb3b64dddd20f44e76b08676fa642dd374bf1d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 24 09:12:05 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 24 09:12:05 2010 +0200" }, "message": "Merge branch \u0027tip/perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core\n" }, { "commit": "bf5438fca2950b03c21ad868090cc1a8fcd49536", "tree": "9fc5693763263704de8d8ba1c37a84172dbe5eb7", "parents": [ "fa6f2cc77081792e4edca9168420a3422299ef15" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Fri Sep 17 11:09:00 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 22 16:29:41 2010 -0400" }, "message": "jump label: Base patch for jump label\n\nbase patch to implement \u0027jump labeling\u0027. Based on a new \u0027asm goto\u0027 inline\nassembly gcc mechanism, we can now branch to labels from an \u0027asm goto\u0027\nstatment. This allows us to create a \u0027no-op\u0027 fastpath, which can subsequently\nbe patched with a jump to the slowpath code. This is useful for code which\nmight be rarely used, but which we\u0027d like to be able to call, if needed.\nTracepoints are the current usecase that these are being implemented for.\n\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nLKML-Reference: \u003cee8b3595967989fdaf84e698dc7447d315ce972a.1284733808.git.jbaron@redhat.com\u003e\n\n[ cleaned up some formating ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "05ed160e89baf7f5fb3432d527fec467d2493626", "tree": "603ca42cf85433e8f87c061140dfcfe1732a5520", "parents": [ "49553c2ef88749dd502687f4eb9c258bb10a4f44" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Sep 13 19:25:41 2010 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 13 20:41:31 2010 +0200" }, "message": "kprobes: Fix Kconfig dependency\n\nFix Kconfig dependency among Kprobes, optprobe and kallsyms.\n\nKprobes uses kallsyms_lookup for finding target function and\nchecking instruction boundary, thus CONFIG_KPROBES should select\nCONFIG_KALLSYMS.\n\nOptprobe is an optional feature which is supported on x86 arch,\nand it also uses kallsyms_lookup for checking instructions in\nthe target function. Since KALLSYMS_ALL just adds symbols of\nkernel variables, it doesn\u0027t need to select KALLSYMS_ALL.\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nAcked-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e,\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Felipe Contreras \u003cfelipe.contreras@gmail.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: akpm \u003cakpm@linux-foundation.org\u003e\nLKML-Reference: \u003c20100913102541.20260.85700.stgit@ltc236.sdl.hitachi.co.jp\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "61be7fdec2f51b99570cd5dcc30c7848c8e56513", "tree": "4a73ee635bc3e35dc54f75caddd26ffb6238bb5c", "parents": [ "12a81c8df13c60904febcafcf6b90ca1acb67122", "eb703f98191a505f78d0066712ad67d5dedc4c90" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 05 08:45:05 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 05 08:45:05 2010 +0200" }, "message": "Merge branch \u0027perf/nmi\u0027 into perf/core\n\nConflicts:\n\tkernel/Makefile\n\nMerge reason: Add the now complete topic, fix the conflict.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "23637d477c1f53acbb176a02c241d60a25888fae", "tree": "6d2e9e4a9f6fa2428e0ace29cf764212b823598a", "parents": [ "c01d4323309a90a298fd81cf3a059ee1b12be2e9" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 15 23:15:20 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 16 01:57:42 2010 +0200" }, "message": "lockup_detector: Introduce CONFIG_HARDLOCKUP_DETECTOR\n\nThis new config is deemed to simplify even more the lockup detector\ndependencies and can make it easier to bring a smooth sorting\nbetween archs that support the new generic lockup detector and those\nthat still have their own, especially for those that are in the\nmiddle of this migration.\n\nInstead of checking whether we have CONFIG_LOCKUP_DETECTOR +\nCONFIG_PERF_EVENTS_NMI each time an arch wants to know if it needs\nto build its own lockup detector, take a shortcut with this new\nconfig. It is enabled only if the hardlockup detection part of\nthe whole lockup detector is on.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Don Zickus \u003cdzickus@redhat.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\n" }, { "commit": "c01d4323309a90a298fd81cf3a059ee1b12be2e9", "tree": "d34c6508c56d14cf1461528c1840182a348f26f4", "parents": [ "e16bb1d7fe07609bc8b0e4c043eff2f47ada78d8" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 15 22:57:48 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 16 01:57:36 2010 +0200" }, "message": "lockup_detector: Adapt CONFIG_PERF_EVENT_NMI to other archs\n\nCONFIG_PERF_EVENT_NMI is something that need to be enabled from the\narch. This is fine on x86 as PERF_EVENTS is builtin but if other\narchs select it, they will need to handle the PERF_EVENTS dependency.\n\nInstead, handle the dependency in the generic layer:\n\n- archs need to tell what they support through HAVE_PERF_EVENTS_NMI\n- Enable magically PERF_EVENTS_NMI if we have PERF_EVENTS and\n HAVE_PERF_EVENTS_NMI.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Don Zickus \u003cdzickus@redhat.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\n" }, { "commit": "0102752e4c9e0655b39734550d4c35327954f7f9", "tree": "04c23f88e57c8e804d144434c60b91879e83648d", "parents": [ "b2812d031dea86926e9c10f7714af33ac2f6b43d" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Apr 11 18:55:56 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 01 04:32:11 2010 +0200" }, "message": "hw-breakpoints: Separate constraint space for data and instruction breakpoints\n\nThere are two outstanding fashions for archs to implement hardware\nbreakpoints.\n\nThe first is to separate breakpoint address pattern definition\nspace between data and instruction breakpoints. We then have\ntypically distinct instruction address breakpoint registers\nand data address breakpoint registers, delivered with\nseparate control registers for data and instruction breakpoints\nas well. This is the case of PowerPc and ARM for example.\n\nThe second consists in having merged breakpoint address space\ndefinition between data and instruction breakpoint. Address\nregisters can host either instruction or data address and\nthe access mode for the breakpoint is defined in a control\nregister. This is the case of x86 and Super H.\n\nThis patch adds a new CONFIG_HAVE_MIXED_BREAKPOINTS_REGS config\nthat archs can select if they belong to the second case. Those\nwill have their slot allocation merged for instructions and\ndata breakpoints.\n\nThe others will have a separate slot tracking between data and\ninstruction breakpoints.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Mahesh Salgaonkar \u003cmahesh@linux.vnet.ibm.com\u003e\nCc: K. Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5cc718b9dad682329a60e73547c6e708faa5bbe4", "tree": "18a1ace43929109e1602a1e30bba42d22677aac9", "parents": [ "8ea7f544100844307072cae2f5fc108afdef999a" ], "author": { "name": "Masami Hiramatsu", "email": "mhiramat@redhat.com", "time": "Mon Mar 15 13:00:54 2010 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 16 11:07:23 2010 +0100" }, "message": "kprobes: Hide CONFIG_OPTPROBES and set if arch supports optimized kprobes\n\nHide CONFIG_OPTPROBES and set if the arch supports optimized\nkprobes (IOW, HAVE_OPTPROBES\u003dy), since this option doesn\u0027t\nchange the major behavior of kprobes, and workarounds for minor\nchanges are documented.\n\nSigned-off-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: systemtap \u003csystemtap@sources.redhat.com\u003e\nCc: DLE \u003cdle-develop@lists.sourceforge.net\u003e\nCc: Dieter Ries \u003cmail@dieterries.net\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20100315170054.31593.3153.stgit@localhost6.localdomain6\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "660f6a360be399f4ebdd6572a3d24afe54e9bb1c", "tree": "9c16463c495a656e34577d59c97b58997b61d242", "parents": [ "586fac13f8685bf9dfb32e1ee98bfb14f0dd0061", "e5a11016643d1ab7172193591506d33a844734cc" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 05 10:50:22 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 05 10:50:22 2010 -0800" }, "message": "Merge branch \u0027perf-probes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-probes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86: Issue at least one memory barrier in stop_machine_text_poke()\n perf probe: Correct probe syntax on command line help\n perf probe: Add lazy line matching support\n perf probe: Show more lines after last line\n perf probe: Check function address range strictly in line finder\n perf probe: Use libdw callback routines\n perf probe: Use elfutils-libdw for analyzing debuginfo\n perf probe: Rename probe finder functions\n perf probe: Fix bugs in line range finder\n perf probe: Update perf probe document\n perf probe: Do not show --line option without dwarf support\n kprobes: Add documents of jump optimization\n kprobes/x86: Support kprobes jump optimization on x86\n x86: Add text_poke_smp for SMP cross modifying code\n kprobes/x86: Cleanup save/restore registers\n kprobes/x86: Boost probes when reentering\n kprobes: Jump optimization sysctl interface\n kprobes: Introduce kprobes jump optimization\n kprobes: Introduce generic insn_slot framework\n kprobes/x86: Cleanup RELATIVEJUMP_INSTRUCTION to RELATIVEJUMP_OPCODE\n" }, { "commit": "e0d272429a34ff143bfa04ee8e29dd4eed2964c7", "tree": "5a719135b245811b5d61ed084d7b8c1bc2e87031", "parents": [ "d25e8dbdab203ed8b4fd0a174bb5259e35ecd87c", "480917427b0b6ff39de55ffc81391055472e6c26" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Feb 28 10:17:55 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Feb 28 10:17:55 2010 -0800" }, "message": "Merge branch \u0027tracing-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (28 commits)\n ftrace: Add function names to dangling } in function graph tracer\n tracing: Simplify memory recycle of trace_define_field\n tracing: Remove unnecessary variable in print_graph_return\n tracing: Fix typo of info text in trace_kprobe.c\n tracing: Fix typo in prof_sysexit_enable()\n tracing: Remove CONFIG_TRACE_POWER from kernel config\n tracing: Fix ftrace_event_call alignment for use with gcc 4.5\n ftrace: Remove memory barriers from NMI code when not needed\n tracing/kprobes: Add short documentation for HAVE_REGS_AND_STACK_ACCESS_API\n s390: Add pt_regs register and stack access API\n tracing/kprobes: Make Kconfig dependencies generic\n tracing: Unify arch_syscall_addr() implementations\n tracing: Add notrace to TRACE_EVENT implementation functions\n ftrace: Allow to remove a single function from function graph filter\n tracing: Add correct/incorrect to sort keys for branch annotation output\n tracing: Simplify test for function_graph tracing start point\n tracing: Drop the tr check from the graph tracing path\n tracing: Add stack dump to trace_printk if stacktrace option is set\n tracing: Use appropriate perl constructs in recordmcount.pl\n tracing: optimize recordmcount.pl for offsets-handling\n ...\n" }, { "commit": "013cfc50672bbb638796545231683231647edb07", "tree": "447341fdc02e9ae26540123c5139f06a4186c66f", "parents": [ "b309a294e5b24692d0f7ea1defa168074cea619e" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Thu Jan 28 18:05:26 2010 +0100" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Feb 26 15:13:55 2010 +0100" }, "message": "oprofile/x86: remove OPROFILE_IBS config option\n\nOProfile support for IBS is now for several versions in the\nkernel. The feature is stable now and the code can be activated\npermanently.\n\nAs a side effect IBS now works also on nosmp configs.\n\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\n" }, { "commit": "b309a294e5b24692d0f7ea1defa168074cea619e", "tree": "8f776bd9ffbc05dfc2f3ca6d6ea3eb7b228ee831", "parents": [ "18b4a4d59e97e7ff13ee84b5bec79f3fc70a9f0a" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Feb 26 15:01:23 2010 +0100" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Feb 26 15:13:54 2010 +0100" }, "message": "oprofile: remove EXPERIMENTAL from the config option description\n\nOProfile is already used for a long time and no longer experimental.\n\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\n" }, { "commit": "18b4a4d59e97e7ff13ee84b5bec79f3fc70a9f0a", "tree": "fc117bf0681831422998345659843eec5c564f7f", "parents": [ "724e6d3fe8003c3f60bf404bf22e4e331327c596" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Wed Feb 10 10:03:34 2010 +0100" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Feb 26 14:52:52 2010 +0100" }, "message": "oprofile: remove tracing build dependency\n\nThe commit\n\n 1155de4 ring-buffer: Make it generally available\n\nalready made ring-buffer available without the TRACING option\nenabled. This patch removes the TRACING dependency from oprofile.\n\nFixes also oprofile configuration on ia64.\n\nThe patch also applies to the 2.6.32-stable kernel.\n\nReported-by: Tony Jones \u003ctonyj@suse.de\u003e\nCc: stable@kernel.org\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\n" }, { "commit": "afd66255b9a48f5851326ddae50e2203fbf71dc9", "tree": "32c7a36a8e2c740b989f16b3e2878f8c565d57f8", "parents": [ "4610ee1d3638fa05ba8e87ccfa971db8e4033ae7" ], "author": { "name": "Masami Hiramatsu", "email": "mhiramat@redhat.com", "time": "Thu Feb 25 08:34:07 2010 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Feb 25 17:49:24 2010 +0100" }, "message": "kprobes: Introduce kprobes jump optimization\n\nIntroduce kprobes jump optimization arch-independent parts.\nKprobes uses breakpoint instruction for interrupting execution\nflow, on some architectures, it can be replaced by a jump\ninstruction and interruption emulation code. This gains kprobs\u0027\nperformance drastically.\n\nTo enable this feature, set CONFIG_OPTPROBES\u003dy (default y if the\narch supports OPTPROBE).\n\nChanges in v9:\n - Fix a bug to optimize probe when enabling.\n - Check nearby probes can be optimize/unoptimize when disarming/arming\n kprobes, instead of registering/unregistering. This will help\n kprobe-tracer because most of probes on it are usually disabled.\n\nChanges in v6:\n - Cleanup coding style for readability.\n - Add comments around get/put_online_cpus().\n\nChanges in v5:\n - Use get_online_cpus()/put_online_cpus() for avoiding text_mutex\n deadlock.\n\nSigned-off-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: systemtap \u003csystemtap@sources.redhat.com\u003e\nCc: DLE \u003cdle-develop@lists.sourceforge.net\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Jim Keniston \u003cjkenisto@us.ibm.com\u003e\nCc: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Anders Kaseorg \u003candersk@ksplice.com\u003e\nCc: Tim Abbott \u003ctabbott@ksplice.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Mathieu Desnoyers \u003ccompudj@krystal.dyndns.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nLKML-Reference: \u003c20100225133407.6725.81992.stgit@localhost6.localdomain6\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e01292b1fd68ff2abe234d584b06e64344d2c1de", "tree": "b9abd2012cc92740a216083ebd3fc3c92e7d84bc", "parents": [ "952974ac61f686896bd4134dae106a886a5589f1" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Thu Feb 18 14:25:21 2010 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Feb 22 17:05:51 2010 +0100" }, "message": "tracing/kprobes: Add short documentation for HAVE_REGS_AND_STACK_ACCESS_API\n\nSo that arch developers know how to implement it without the\nneed to dig into changelogs.\n\nReported-by: Mike Frysinger \u003cvapier.adi@gmail.com\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \"David S . Miller\" \u003cdavem@davemloft.net\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100218132521.GB2406@osiris.boeblingen.de.ibm.com\u003e\n[added reference to ptrace.h in the config help]\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "f850c30c8b426ba1688cb63b1a3e534eed03a138", "tree": "b01f27bc57b73cf8311c8135be0ffc8e93b16ed6", "parents": [ "e7b8e675d9c71b868b66f62f725a948047514719" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Feb 10 17:25:17 2010 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Feb 17 13:13:08 2010 +0100" }, "message": "tracing/kprobes: Make Kconfig dependencies generic\n\nKPROBES_EVENT actually depends on the regs and stack access API\n(b1cf540f) and not on x86.\nSo introduce a new config option which architectures can select if\nthey have the API implemented and switch x86.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nLKML-Reference: \u003c20100210162517.GB6933@osiris.boeblingen.de.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "99e8c5a3b875a34d894a711c9a3669858d6adf45", "tree": "cb0feb7052857b9f32b476f9b4d793b8ff628974", "parents": [ "5d27c23df09b702868d9a3bff86ec6abd22963ac" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Dec 17 01:33:54 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 18 13:11:51 2009 +0100" }, "message": "hw-breakpoints: Fix hardware breakpoints -\u003e perf events dependency\n\nThe kbuild\u0027s select command doesn\u0027t propagate through the config\ndependencies.\n\nHence the current rules of hardware breakpoint\u0027s config can\u0027t\nensure perf can never be disabled under us.\n\nWe have:\n\nconfig X86\n\tselects HAVE_HW_BREAKPOINTS\n\nconfig HAVE_HW_BREAKPOINTS\n\tselect PERF_EVENTS\n\nconfig PERF_EVENTS\n\t[...]\n\nx86 will select the breakpoints but that won\u0027t propagate to perf\nevents. The user can still disable the latter, but it is\nnecessary for the breakpoints.\n\nWhat we need is:\n\n - x86 selects HAVE_HW_BREAKPOINTS and PERF_EVENTS\n - HAVE_HW_BREAKPOINTS depends on PERF_EVENTS\n\nso that we ensure PERF_EVENTS is enabled and frozen for x86.\n\nThis fixes the following kind of build errors:\n\n In file included from arch/x86/kernel/hw_breakpoint.c:31:\n include/linux/hw_breakpoint.h: In function \u0027hw_breakpoint_addr\u0027:\n include/linux/hw_breakpoint.h:39: error: \u0027struct perf_event\u0027 has no member named \u0027attr\u0027\n\nv2: Select also ANON_INODES from x86, required for perf\n\nReported-by: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nReported-by: Michal Marek \u003cmmarek@suse.cz\u003e\nReported-by: Andrew Randrianasulu \u003crandrik_a@yahoo.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: K.Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003c1261010034-7786-1-git-send-regression-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ed9216c1717a3f3738a77908aff78995ea69e7ff", "tree": "c6b5ace7c333dabbf1d94074a13a98244bcdfb26", "parents": [ "d7fc02c7bae7b1cf69269992cf880a43a350cdaa", "d5696725b2a4c59503f5e0bc33adeee7f30cd45b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 08:02:38 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 08:02:38 2009 -0800" }, "message": "Merge branch \u0027kvm-updates/2.6.33\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm\n\n* \u0027kvm-updates/2.6.33\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm: (84 commits)\n KVM: VMX: Fix comparison of guest efer with stale host value\n KVM: s390: Fix prefix register checking in arch/s390/kvm/sigp.c\n KVM: Drop user return notifier when disabling virtualization on a cpu\n KVM: VMX: Disable unrestricted guest when EPT disabled\n KVM: x86 emulator: limit instructions to 15 bytes\n KVM: s390: Make psw available on all exits, not just a subset\n KVM: x86: Add KVM_GET/SET_VCPU_EVENTS\n KVM: VMX: Report unexpected simultaneous exceptions as internal errors\n KVM: Allow internal errors reported to userspace to carry extra data\n KVM: Reorder IOCTLs in main kvm.h\n KVM: x86: Polish exception injection via KVM_SET_GUEST_DEBUG\n KVM: only clear irq_source_id if irqchip is present\n KVM: x86: disallow KVM_{SET,GET}_LAPIC without allocated in-kernel lapic\n KVM: x86: disallow multiple KVM_CREATE_IRQCHIP\n KVM: VMX: Remove vmx-\u003emsr_offset_efer\n KVM: MMU: update invlpg handler comment\n KVM: VMX: move CR3/PDPTR update to vmx_set_cr3\n KVM: remove duplicated task_switch check\n KVM: powerpc: Fix BUILD_BUG_ON condition\n KVM: VMX: Use shared msr infrastructure\n ...\n\nTrivial conflicts due to new Kconfig options in arch/Kconfig and kernel/Makefile\n" }, { "commit": "24f1e32c60c45c89a997c73395b69c8af6f0a84e", "tree": "4f30f16e18cb4abbcf96b3b331e6a3f01bfa26e6", "parents": [ "2da3e160cb3d226d87b907fab26850d838ed8d7c" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Sep 09 19:22:48 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Nov 08 15:34:42 2009 +0100" }, "message": "hw-breakpoints: Rewrite the hw-breakpoints layer on top of perf events\n\nThis patch rebase the implementation of the breakpoints API on top of\nperf events instances.\n\nEach breakpoints are now perf events that handle the\nregister scheduling, thread/cpu attachment, etc..\n\nThe new layering is now made as follows:\n\n ptrace kgdb ftrace perf syscall\n \\ | / /\n \\ | / /\n /\n Core breakpoint API /\n /\n | /\n | /\n\n Breakpoints perf events\n\n |\n |\n\n Breakpoints PMU ---- Debug Register constraints handling\n (Part of core breakpoint API)\n |\n |\n\n Hardware debug registers\n\nReasons of this rewrite:\n\n- Use the centralized/optimized pmu registers scheduling,\n implying an easier arch integration\n- More powerful register handling: perf attributes (pinned/flexible\n events, exclusive/non-exclusive, tunable period, etc...)\n\nImpact:\n\n- New perf ABI: the hardware breakpoints counters\n- Ptrace breakpoints setting remains tricky and still needs some per\n thread breakpoints references.\n\nTodo (in the order):\n\n- Support breakpoints perf counter events for perf tools (ie: implement\n perf_bpcounter_event())\n- Support from perf tools\n\nChanges in v2:\n\n- Follow the perf \"event \" rename\n- The ptrace regression have been fixed (ptrace breakpoint perf events\n weren\u0027t released when a task ended)\n- Drop the struct hw_breakpoint and store generic fields in\n perf_event_attr.\n- Separate core and arch specific headers, drop\n asm-generic/hw_breakpoint.h and create linux/hw_breakpoint.h\n- Use new generic len/type for breakpoint\n- Handle off case: when breakpoints api is not supported by an arch\n\nChanges in v3:\n\n- Fix broken CONFIG_KVM, we need to propagate the breakpoint api\n changes to kvm when we exit the guest and restore the bp registers\n to the host.\n\nChanges in v4:\n\n- Drop the hw_breakpoint_restore() stub as it is only used by KVM\n- EXPORT_SYMBOL_GPL hw_breakpoint_restore() as KVM can be built as a\n module\n- Restore the breakpoints unconditionally on kvm guest exit:\n TIF_DEBUG_THREAD doesn\u0027t anymore cover every cases of running\n breakpoints and vcpu-\u003earch.switch_db_regs might not always be\n set when the guest used debug registers.\n (Waiting for a reliable optimization)\n\nChanges in v5:\n\n- Split-up the asm-generic/hw-breakpoint.h moving to\n linux/hw_breakpoint.h into a separate patch\n- Optimize the breakpoints restoring while switching from kvm guest\n to host. We only want to restore the state if we have active\n breakpoints to the host, otherwise we don\u0027t care about messed-up\n address registers.\n- Add asm/hw_breakpoint.h to Kbuild\n- Fix bad breakpoint type in trace_selftest.c\n\nChanges in v6:\n\n- Fix wrong header inclusion in trace.h (triggered a build\n error with CONFIG_FTRACE_SELFTEST\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jan Kiszka \u003cjan.kiszka@web.de\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\n" }, { "commit": "0f8f86c7bdd1c954fbe153af437a0d91a6c5721a", "tree": "94a8d419a470a4f9852ca397bb9bbe48db92ff5c", "parents": [ "dca2d6ac09d9ef59ff46820d4f0c94b08a671202", "f39cdf25bf77219676ec5360980ac40b1a7e144a" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Oct 18 01:09:09 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Oct 18 01:12:33 2009 +0200" }, "message": "Merge commit \u0027perf/core\u0027 into perf/hw-breakpoint\n\nConflicts:\n\tkernel/Makefile\n\tkernel/trace/Makefile\n\tkernel/trace/trace.h\n\tsamples/Makefile\n\nMerge reason: We need to be uptodate with the perf events development\nbranch because we plan to rewrite the breakpoints API on top of\nperf events.\n" }, { "commit": "7c68af6e32c73992bad24107311f3433c89016e2", "tree": "9046ac5339f944e8ddccd34be226790b953dda61", "parents": [ "817b33d38f81c8736d39283c35c886ae4668f1af" ], "author": { "name": "Avi Kivity", "email": "avi@redhat.com", "time": "Sat Sep 19 09:40:22 2009 +0300" }, "committer": { "name": "H. Peter Anvin", "email": "hpa@zytor.com", "time": "Thu Oct 01 12:12:18 2009 -0700" }, "message": "core, x86: Add user return notifiers\n\nAdd a general per-cpu notifier that is called whenever the kernel is\nabout to return to userspace. The notifier uses a thread_info flag\nand existing checks, so there is no impact on user return or context\nswitch fast paths.\n\nThis will be used initially to speed up KVM task switching by lazily\nupdating MSRs.\n\nSigned-off-by: Avi Kivity \u003cavi@redhat.com\u003e\nLKML-Reference: \u003c1253342422-13811-1-git-send-email-avi@redhat.com\u003e\nSigned-off-by: H. Peter Anvin \u003chpa@zytor.com\u003e\n" }, { "commit": "9a5963eb494c8a7be65199e15854551df7d2d939", "tree": "1ab01e8910e3f92de9aabb23b6f37c7aa275f5f0", "parents": [ "b375a11a239e9e1cac40c7f3ff28b343d9f7ac51" ], "author": { "name": "Christian Borntraeger", "email": "borntraeger@de.ibm.com", "time": "Wed Sep 16 21:56:49 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Sep 17 15:53:42 2009 -0400" }, "message": "oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP\n\ncommit 85bac32c4a52c592b857f2c360cc5ec93a097d70\n ring-buffer: only enable ring_buffer_swap_cpu when needed\nbroke oprofile (at least on s390, but likely on all platforms).\n\nthis patch lets oprofile select RING_BUFER_ALLOW_SWAP to make\nring_buffer_swap_cpu usable for oprofile.\n\nSigned-off-by: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nLKML-Reference: \u003c200909162156.49239.borntraeger@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "dca2d6ac09d9ef59ff46820d4f0c94b08a671202", "tree": "fdec753b842dad09e3a4151954fab3eb5c43500d", "parents": [ "d6a65dffb30d8636b1e5d4c201564ef401a246cf", "18240904960a39e582ced8ba8ececb10b8c22dd3" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 12:18:15 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 12:18:15 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into tracing/hw-breakpoints\n\nConflicts:\n\tarch/x86/kernel/process_64.c\n\nSemantic conflict fixed in:\n\tarch/x86/kvm/x86.c\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a1922ed661ab2c1637d0b10cde933bd9cd33d965", "tree": "0f1777542b385ebefd30b3586d830fd8ed6fda5b", "parents": [ "75e33751ca8bbb72dd6f1a74d2810ddc8cbe4bdf", "d28daf923ac5e4a0d7cecebae56f3e339189366b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 07 08:19:51 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 07 08:19:51 2009 +0200" }, "message": "Merge branch \u0027tracing/core\u0027 into tracing/hw-breakpoints\n\nConflicts:\n\tarch/Kconfig\n\tkernel/trace/trace.h\n\nMerge reason: resolve the conflicts, plus adopt to the new\n ring-buffer APIs.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4d4036e0e7299c6cbb2d2421b4b30b7a409ce61a", "tree": "c9003cd927ed878412e89a59db0138b6b701b629", "parents": [ "6e63ea4b0b14ff5fb8a3ca704fcda7d28b95f079" ], "author": { "name": "Jason Yeh", "email": "jason.yeh@amd.com", "time": "Wed Jul 08 13:49:38 2009 +0200" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Mon Jul 20 16:33:53 2009 +0200" }, "message": "oprofile: Implement performance counter multiplexing\n\nThe number of hardware counters is limited. The multiplexing feature\nenables OProfile to gather more events than counters are provided by\nthe hardware. This is realized by switching between events at an user\nspecified time interval.\n\nA new file (/dev/oprofile/time_slice) is added for the user to specify\nthe timer interval in ms. If the number of events to profile is higher\nthan the number of hardware counters available, the patch will\nschedule a work queue that switches the event counter and re-writes\nthe different sets of values into it. The switching mechanism needs to\nbe implemented for each architecture to support multiplexing. This\npatch only implements AMD CPU support, but multiplexing can be easily\nextended for other models and architectures.\n\nThere are follow-on patches that rework parts of this patch.\n\nSigned-off-by: Jason Yeh \u003cjason.yeh@amd.com\u003e\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\n" }, { "commit": "2521f2c228ad750701ba4702484e31d876dbc386", "tree": "2221de3e3de9512979b8244c6304366e3be5be63", "parents": [ "0b923606e75f1ab672e25b14ac039a1cdcfa382f" ], "author": { "name": "Peter Oberparleiter", "email": "oberpar@linux.vnet.ibm.com", "time": "Wed Jun 17 16:28:08 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 18 13:03:57 2009 -0700" }, "message": "gcov: add gcov profiling infrastructure\n\nEnable the use of GCC\u0027s coverage testing tool gcov [1] with the Linux\nkernel. gcov may be useful for:\n\n * debugging (has this code been reached at all?)\n * test improvement (how do I change my test to cover these lines?)\n * minimizing kernel configurations (do I need this option if the\n associated code is never run?)\n\nThe profiling patch incorporates the following changes:\n\n * change kbuild to include profiling flags\n * provide functions needed by profiling code\n * present profiling data as files in debugfs\n\nNote that on some architectures, enabling gcc\u0027s profiling option\n\"-fprofile-arcs\" for the entire kernel may trigger compile/link/\nrun-time problems, some of which are caused by toolchain bugs and\nothers which require adjustment of architecture code.\n\nFor this reason profiling the entire kernel is initially restricted\nto those architectures for which it is known to work without changes.\nThis restriction can be lifted once an architecture has been tested\nand found compatible with gcc\u0027s profiling. Profiling of single files\nor directories is still available on all platforms (see config help\ntext).\n\n[1] http://gcc.gnu.org/onlinedocs/gcc/Gcov.html\n\nSigned-off-by: Peter Oberparleiter \u003coberpar@linux.vnet.ibm.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Huang Ying \u003cying.huang@intel.com\u003e\nCc: Li Wei \u003cW.Li@Sun.COM\u003e\nCc: Michael Ellerman \u003cmichaele@au1.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Heiko Carstens \u003cheicars2@linux.vnet.ibm.com\u003e\nCc: Martin Schwidefsky \u003cmschwid2@linux.vnet.ibm.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Jeff Dike \u003cjdike@addtoit.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": "62a038d34db26771756cf3689e36de638bedd2c4", "tree": "4b435b34474a889d8a5c82b687e981d9e09abc91", "parents": [ "b332828c39326b1dca617f387dd15d12e81cd5f0" ], "author": { "name": "K.Prasad", "email": "prasad@linux.vnet.ibm.com", "time": "Mon Jun 01 23:43:33 2009 +0530" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 22:46:58 2009 +0200" }, "message": "hw-breakpoints: introducing generic hardware breakpoint handler interfaces\n\nThis patch introduces the generic Hardware Breakpoint interfaces for both user\nand kernel space requests.\nThis core Api handles the hardware breakpoints through new helpers. It\nhandles the user-space breakpoints and kernel breakpoints in front of\narch implementation.\n\nOne can choose kernel wide breakpoints using the following helpers\nand passing them a generic struct hw_breakpoint:\n\n- register_kernel_hw_breakpoint()\n- unregister_kernel_hw_breakpoint()\n- modify_kernel_hw_breakpoint()\n\nOn the other side, you can choose per task breakpoints.\n\n- register_user_hw_breakpoint()\n- unregister_user_hw_breakpoint()\n- modify_user_hw_breakpoint()\n\n[ fweisbec@gmail.com: fix conflict against perfcounter ]\n\nOriginal-patch-by: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nSigned-off-by: K.Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nReviewed-by: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "36cd3c9f925b9307236505ae7ad1ad7ac4d4357c", "tree": "d9be68502d0f11b2259427e9ee8320891367143c", "parents": [ "022624a758dc9489388a99ad29577b4c8c09237c" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Thu Apr 09 18:48:34 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 09 19:28:24 2009 +0200" }, "message": "mutex: have non-spinning mutexes on s390 by default\n\nImpact: performance regression fix for s390\n\nThe adaptive spinning mutexes will not always do what one would expect on\nvirtualized architectures like s390. Especially the cpu_relax() loop in\nmutex_spin_on_owner might hurt if the mutex holding cpu has been scheduled\naway by the hypervisor.\n\nWe would end up in a cpu_relax() loop when there is no chance that the\nstate of the mutex changes until the target cpu has been scheduled again by\nthe hypervisor.\n\nFor that reason we should change the default behaviour to no-spin on s390.\n\nWe do have an instruction which allows to yield the current cpu in favour of\na different target cpu. Also we have an instruction which allows us to figure\nout if the target cpu is physically backed.\n\nHowever we need to do some performance tests until we can come up with\na solution that will do the right thing on s390.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nLKML-Reference: \u003c20090409184834.7a0df7b2@osiris.boeblingen.de.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8302294f43250dc337108c51882a6007f2b1e2e0", "tree": "85acd4440799c46a372df9cad170fa0c21e59096", "parents": [ "4fe70410d9a219dabb47328effccae7e7f2a6e26", "2e572895bf3203e881356a4039ab0fa428ed2639" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 01 21:54:19 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 02 00:49:02 2009 +0200" }, "message": "Merge branch \u0027tracing/core-v2\u0027 into tracing-for-linus\n\nConflicts:\n\tinclude/linux/slub_def.h\n\tlib/Kconfig.debug\n\tmm/slob.c\n\tmm/slub.c\n" }, { "commit": "40ada30f9621fbd831ac2437b9a2a399aad34b00", "tree": "47df1abc756d9ce33feec3eb5bb601edafbcf14c", "parents": [ "526211bc58c4b3265352801c5a7f469af5c34711" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Mar 05 21:19:55 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Mar 05 21:53:25 2009 +0100" }, "message": "tracing: clean up menu\n\nClean up menu structure, introduce TRACING_SUPPORT switch that signals\nwhether an architecture supports various instrumentation mechanisms.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5ee00bd4691e7364bb7b62e2068d473cd5cb9320", "tree": "5223b3e5baadea873e0b2b5e6b40236de27bd864", "parents": [ "0bd5c4f7c874cf48ff7904dcf8a59988c8fea0e8" ], "author": { "name": "Joerg Roedel", "email": "joerg.roedel@amd.com", "time": "Fri Jan 09 12:14:24 2009 +0100" }, "committer": { "name": "Joerg Roedel", "email": "joerg.roedel@amd.com", "time": "Thu Mar 05 14:36:50 2009 +0100" }, "message": "dma-debug: add Kconfig entry\n\nImpact: add a Kconfig entry for DMA-API debugging\n\nSigned-off-by: Joerg Roedel \u003cjoerg.roedel@amd.com\u003e\n" }, { "commit": "1a94bc34768e463a93cb3751819709ab0ea80a01", "tree": "a27753a61c2aa02d31b2d1f8efe9f00e68770856", "parents": [ "f627a741d24f12955fa2d9f8831c3b12860635bd" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:13:59 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:16 2009 +0100" }, "message": "[CVE-2009-0029] System call wrapper infrastructure\n\nFrom: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\n\nBy selecting HAVE_SYSCALL_WRAPPERS architectures can activate\nsystem call wrappers in order to sign extend system call arguments.\n\nAll architectures where the ABI defines that the caller of a function\nhas to perform sign extension probably need this.\n\nReported-by: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "d69d59f49763e6bd047c591c6c1f84c8e13da931", "tree": "ec4d1fa467b0e552ffd2f0c4de5acfe999eecec1", "parents": [ "c4f50183f90fb1fd99aa5941f01b90cd1b882d2e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 12 09:38:57 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 12 09:46:31 2008 +0100" }, "message": "oprofile: select RING_BUFFER\n\nImpact: build fix\n\nOProfile now depends on the ring buffer infrastructure:\n\n arch/x86/oprofile/built-in.o: In function `oprofile_add_ibs_sample\u0027:\n : undefined reference to `ring_buffer_unlock_commit\u0027\n\nSelect TRACING and RING_BUFFER when oprofile is enabled.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "96b8936a9ed08746e47081458a5eb9e43a751e24", "tree": "d1a738fdd95dda182f99c90fe3079283e0b07307", "parents": [ "16799c6a4d5156c6ee185b51b7586cca1aae0800" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Nov 25 08:10:03 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Nov 30 11:00:15 2008 -0800" }, "message": "remove __ARCH_WANT_COMPAT_SYS_PTRACE\n\nAll architectures now use the generic compat_sys_ptrace, as should every\nnew architecture that needs 32bit compat (if we\u0027ll ever get another).\n\nRemove the now superflous __ARCH_WANT_COMPAT_SYS_PTRACE define, and also\nkill a comment about __ARCH_SYS_PTRACE that was added after\n__ARCH_SYS_PTRACE was already gone.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ba8b453de08c18cbc2453bcabfd0936c1d6695cb", "tree": "1b3182cab9de4f2646650e4846f9fb9f25fc1b46", "parents": [ "0173a3265b228da319ceb9c1ec6a5682fd1b2d92" ], "author": { "name": "Jesper Dangaard Brouer", "email": "jdb@comx.dk", "time": "Fri Oct 24 15:05:12 2008 +0200" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Mon Oct 27 19:15:39 2008 +0100" }, "message": "Change UTF8 chars in Kconfig help text about Oprofile AMD barcelona\n\nFixes screwing up text output when doing a make oldconfig and viewing\nhelp text of \"OProfile AMD IBS support\". When the terminal is\nnot using an UTF8 locale / LANG. \"make config\" breaks terminal output\nand its not possible to continue.\n\n(Change added by changeset 852402cc Tue Jul 22 21:09:06 2008)\n\nSigned-off-by: Jesper Dangaard Brouer \u003chawk@comx.dk\u003e\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\n" }, { "commit": "9ba16087d9f996a93ab6f4453a52a4b24bc1f25c", "tree": "98a292c556b646aec40ce137b1ec689b3469f120", "parents": [ "a25d644fc0e232f242d1f3baa63c149c42536ff0" ], "author": { "name": "Jan Beulich", "email": "jbeulich@novell.com", "time": "Wed Oct 15 22:01:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 16 11:21:31 2008 -0700" }, "message": "Kconfig: eliminate \"def_bool n\" constructs\n\nUsing \"def_bool n\" is pointless, simply using bool here appears more\nappropriate.\n\nFurther, retaining such options that don\u0027t have a prompt and aren\u0027t\nselected by anything seems also at least questionable.\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "accba5f3965d6a9d1bf7c1e1a7995d17e9d521b6", "tree": "8fb40782e79472ed882ff2098d4dd295557278ee", "parents": [ "6852fd9b86d05063c6ef49d2e12e061cc7f6a105", "4480f15b3306f43bbb0310d461142b4e897ca45b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 13 11:05:51 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 13 11:05:51 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into oprofile-v2\n\nConflicts:\n\tarch/x86/kernel/apic_32.c\n\tarch/x86/oprofile/nmi_int.c\n\tinclude/linux/pci_ids.h\n" }, { "commit": "1f5a4ad97a0e7b663d527ecc02aabe203d000d91", "tree": "83f01115a0c1abfa375d6a0edd5ddabd122676f5", "parents": [ "828c365cc8b8d38c346fccb19fa80d28f2240831" ], "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: CONFIG_HAVE_ARCH_TRACEHOOK\n\nThis adds the generic HAVE_ARCH_TRACEHOOK kconfig item. Each arch should\nadd to some Kconfig file:\n\n\tselect HAVE_ARCH_TRACEHOOK\n\nif the arch code uses all the latest hooks to enable newfangled tracing\nand debugging code. The comment in arch/Kconfig lists all the\nprerequisite arch support. When all these are available, setting\nHAVE_ARCH_TRACEHOOK will allow enabling any new features that depend on\nthe modern arch interfaces.\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": "852402cc27bfa1200164e9e8dc7f6e5f0a4fbd46", "tree": "0194e23373230888de9115f5ffaacb09e005b57a", "parents": [ "6aa360e6c16c145edf1837690e0f7aaea6b86ef3" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Tue Jul 22 21:09:06 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 26 11:48:13 2008 +0200" }, "message": "x86/oprofile: add CONFIG_OPROFILE_IBS option\n\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: oprofile-list \u003coprofile-list@lists.sourceforge.net\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Barry Kasindorf \u003cbarry.kasindorf@amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "58340a07c194e0aed7bc58b61ff24330bb2a409f", "tree": "907a53c71b3092e3a3a95c6641d4839e20214efd", "parents": [ "e0ce0da9fefcc723dc006c35a7f91a32750abd40" ], "author": { "name": "Johannes Berg", "email": "johannes@sipsolutions.net", "time": "Fri Jul 25 01:45:33 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:27 2008 -0700" }, "message": "introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol\n\nIn many cases, especially in networking, it can be beneficial to know at\ncompile time whether the architecture can do unaligned accesses efficiently.\nThis patch introduces a new Kconfig symbol\n\n\tHAVE_EFFICIENT_UNALIGNED_ACCESS\n\nfor that purpose and adds it to the powerpc and x86 architectures. Also add\nsome documentation about alignment and networking, and especially one intended\nuse of this symbol.\n\nSigned-off-by: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\nAcked-by: Sam Ravnborg \u003csam@ravnborg.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e [x86 architecture part]\nCc: \u003clinux-arch@vger.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": "28b2ee20c7cba812b6f2ccf6d722cf86d00a84dc", "tree": "e8f1efd05c38c1cb26ca3ee051a454eb685fd122", "parents": [ "0d71d10a4252a3938e6b70189bc776171c02e076" ], "author": { "name": "Rik van Riel", "email": "riel@redhat.com", "time": "Wed Jul 23 21:27:05 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:15 2008 -0700" }, "message": "access_process_vm device memory infrastructure\n\nIn order to be able to debug things like the X server and programs using\nthe PPC Cell SPUs, the debugger needs to be able to access device memory\nthrough ptrace and /proc/pid/mem.\n\nThis patch:\n\nAdd the generic_access_phys access function and put the hooks in place\nto allow access_process_vm to access device or PPC Cell SPU memory.\n\n[riel@redhat.com: Add documentation for the vm_ops-\u003eaccess function]\nSigned-off-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Benjamin Herrensmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Dave Airlie \u003cairlied@linux.ie\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nAcked-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": "9483a578df27fe7603605d565eefe039c1ba5845", "tree": "e8f071d503b26d23d22556ec5d115cd67a45d47c", "parents": [ "d7ce20b2024d318b9ba88859226af1441270d99f" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Wed Jul 23 21:26:48 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:13 2008 -0700" }, "message": "add HAVE_CLK to Kconfig, for driver dependencies\n\nFlag platforms as HAVE_CLK (or not) in Kconfig, based on whether they\nsupport \u003clinux/clk.h\u003e calls, so that otherwise portable drivers which need\nthose calls can list that dependency.\n\nSomething like this is a prerequisite for merging the musb_hdrc driver,\ncurrently used on platforms including Davinci, OMAP2430, OMAP3xx ... and\nthe discrete TUSB6010 chip, which doesn\u0027t have a natural platform\ndependency. (Used with OMAP 2420 in current Nokia N8x0 tablets.)\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nAcked-by: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3d4422332711ef48ef0f132f1fcbfcbd56c7f3d1", "tree": "9fd3cfa9825e8cb0b7e08dfae85cc9a722442849", "parents": [ "543cf4cb3fe6f6cae3651ba918b9c56200b257d0" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jun 26 11:21:34 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jun 26 11:21:34 2008 +0200" }, "message": "Add generic helpers for arch IPI function calls\n\nThis adds kernel/smp.c which contains helpers for IPI function calls. In\naddition to supporting the existing smp_call_function() in a more efficient\nmanner, it also adds a more scalable variant called smp_call_function_single()\nfor calling a given function on a single CPU only.\n\nThe core of this is based on the x86-64 patch from Nick Piggin, lots of\nchanges since then. \"Alan D. Brunelle\" \u003cAlan.Brunelle@hp.com\u003e has\ncontributed lots of fixes and suggestions as well. Also thanks to\nPaul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e for reviewing RCU usage\nand getting rid of the data allocation fallback deadlock.\n\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nReviewed-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "74bc7ceebfa1c84ddd3a843ebfb56df013bf7ef5", "tree": "548155250fbc7410273125019c70a7c5c085e895", "parents": [ "d2ba7e2ae206e9ab24e8937d99d0d5513bfd08e5" ], "author": { "name": "Arthur Kepner", "email": "akepner@sgi.com", "time": "Tue Apr 29 01:00:30 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:11 2008 -0700" }, "message": "dma: add dma_*map*_attrs() interfaces\n\nIntroduce new interfaces, dma_*map*_attrs(), for passing architecture-specific\nattributes when memory is mapped and unmapped for DMA. Give the interfaces\ndefault implementations which ignore attributes. Also introduce the\ndma_{set|get}_attr() interfaces for setting and retrieving individual\nattributes. Define one attribute, DMA_ATTR_WRITE_BARRIER, in anticipation of\nits use by ia64/sn. Select whether architectures implement arch-specific\nversions of the dma_*map*_attrs() interfaces via HAVE_DMA_ATTRS in Kconfig.\n\n[markn@au1.ibm.com: dma_{set,get}_attr() have to be static inline]\nSigned-off-by: Arthur Kepner \u003cakepner@sgi.com\u003e\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\nCc: Jes Sorensen \u003cjes@sgi.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Roland Dreier \u003crdreier@cisco.com\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Grant Grundler \u003cgrundler@parisc-linux.org\u003e\nCc: Michael Ellerman \u003cmichael@ellerman.id.au\u003e\nSigned-off-by: Mark Nelson \u003cmarkn@au1.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": "9edddaa200df18e08fe0cf21036e8ae467b1363c", "tree": "26f5319fac24fb6c76b1276b19725caeb5ec24bc", "parents": [ "8182ec49a73729334f5a6c65a607ba7009ebd6d6" ], "author": { "name": "Ananth N Mavinakayanahalli", "email": "ananth@in.ibm.com", "time": "Tue Mar 04 14:28:37 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Mar 04 16:35:11 2008 -0800" }, "message": "Kprobes: indicate kretprobe support in Kconfig\n\nAdd CONFIG_HAVE_KRETPROBES to the arch/\u003carch\u003e/Kconfig file for relevant\narchitectures with kprobes support. This facilitates easy handling of\nin-kernel modules (like samples/kprobes/kretprobe_example.c) that depend on\nkretprobes being present in the kernel.\n\nThanks to Sam Ravnborg for helping make the patch more lean.\n\nPer Mathieu\u0027s suggestion, added CONFIG_KRETPROBES and fixed up dependencies.\n\nSigned-off-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nAcked-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": "125e564582cbce6219397fc64556438420efae4c", "tree": "501bb3cdb3f17bfbe3b9a43bd89b48ac801a1e38", "parents": [ "3f550096dede4430f83b16457da83bf429155ac2" ], "author": { "name": "Mathieu Desnoyers", "email": "mathieu.desnoyers@polymtl.ca", "time": "Sat Feb 02 15:10:36 2008 -0500" }, "committer": { "name": "Sam Ravnborg", "email": "sam@ravnborg.org", "time": "Sun Feb 03 08:58:08 2008 +0100" }, "message": "Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig\n\nMove the instrumentation Kconfig to\n\narch/Kconfig for architecture dependent options\n - oprofile\n - kprobes\n\nand\n\ninit/Kconfig for architecture independent options\n - profiling\n - markers\n\nRemove the \"Instrumentation Support\" menu. Everything moves to \"General setup\".\nDelete the kernel/Kconfig.instrumentation file.\n\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Sam Ravnborg \u003csam@ravnborg.org\u003e\n" }, { "commit": "fb32e03fdc170251a381449a8d9b82cf7e811a6f", "tree": "9b7c0ad2f097bdc0498e6ca07b9e83b1f2aac1bc", "parents": [ "c0ffa3a951668734a635cd1e26bf7583795854c5" ], "author": { "name": "Mathieu Desnoyers", "email": "mathieu.desnoyers@polymtl.ca", "time": "Sat Feb 02 15:10:33 2008 -0500" }, "committer": { "name": "Sam Ravnborg", "email": "sam@ravnborg.org", "time": "Sun Feb 03 08:58:07 2008 +0100" }, "message": "Create arch/Kconfig\n\nPuts the content of arch/Kconfig in the \"General setup\" menu.\n\nLinus:\n\n\u003e Should it come with a re-duplication of it\u0027s content into each\n\u003e architecture, which was the case previously ? The oprofile and kprobes\n\u003e menu entries were litteraly cut and pasted from one architecture to\n\u003e another. Should we put its content in init/Kconfig then ?\n\nI don\u0027t think it\u0027s a good idea to go back to making it per-architecture,\nalthough that extensive \"depends on \u003clist-of-archiectures-here\u003e\" might\nindicate that there certainly is room for cleanup there.\n\nAnd I don\u0027t think it\u0027s wrong keeping it in kernel/Kconfig.xyz per se, I\njust think it\u0027s wrong to (a) lump the code together when it really doesn\u0027t\nnecessarily need to and (b) show it to users as some kind of choice that\nis tied together (whether it then has common code or not).\n\nOn the per-architecture side, I do think it would be better to *not* have\ninternal architecture knowledge in a generic file, and as such a line like\n\n depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32\n\nreally shouldn\u0027t exist in a file like kernel/Kconfig.instrumentation.\n\nIt would be much better to do\n\n depends on ARCH_SUPPORTS_KPROBES\n\nin that generic file, and then architectures that do support it would just\nhave a\n\n bool ARCH_SUPPORTS_KPROBES\n default y\n\nin *their* architecture files. That would seem to be much more logical,\nand is readable both for arch maintainers *and* for people who have no\nclue - and don\u0027t care - about which architecture is supposed to support\nwhich interface...\n\nSam Ravnborg:\n\nStuff it into a new file: arch/Kconfig\nWe can then extend this file to include all the \u0027trailing\u0027\nKconfig things that are anyway equal for all ARCHs.\n\nBut it should be kept clean - so if we introduce such a file\nthen we should use ARCH_HAS_whatever in the arch specific Kconfig\nfiles to enable stuff that is not shared.\n\n[...]\n\nThe above suggestion is actually not exactly the best way to do it...\nFirst the naming..\nA quick grep shows following usage today (in Kconfig files)\nARCH_HAS 51\nARCH_SUPPORTS 4\nHAVE_ARCH 7\n\nARCH_HAS is the clear winner.\n\nIn the common Kconfig file do:\n\nconfig FOO\n depends on ARCH_HAS_FOO\n bool \"bla bla\"\n\nconfig ARCH_HAS_FOO\n def_bool n\n\nIn the arch specific Kconfig file in a suitable place do:\n\nconfig SUITABLE_OPTION\n select ARCH_HAS_FOO\n\nThe naming of ARCH_HAS_ is fixed and shall be:\nARCH_HAS_\u003cconfig option it will enable\u003e\n\nOnly a single line added pr. architecture.\nAnd we will end up with a (maybe even commented) list of trivial selects.\n\n- Yet another update :\n\nMoving to HAVE_* now.\n\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nSigned-off-by: Sam Ravnborg \u003csam@ravnborg.org\u003e\n" } ] }