- 26 8月, 2008 2 次提交
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由 H. Peter Anvin 提交于
Return the correct return value when the MSR driver partially completes a request (we should return the number of bytes actually read or written, instead of the error code.) Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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由 H. Peter Anvin 提交于
Propagate error (-ENXIO) from smp_call_function_single(). These errors can happen when a CPU is unplugged while the MSR driver is open. Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 15 8月, 2008 1 次提交
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由 Darrick J. Wong 提交于
msr_open tests for someone trying to open a device for a nonexistent CPU. However, the function always returns 0, not ret like it should, hence userspace can BUG the kernel trivially. This bug was introduced by the cdev lock_kernel pushdown patch last May. The BUG can be reproduced with these commands: # mknod fubar c 202 8 <-- pick a number less than NR_CPUS that is not the number of an online CPU # cat fubar Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 22 7月, 2008 1 次提交
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由 Greg Kroah-Hartman 提交于
device_create() is race-prone, so use the race-free device_create_drvdata() instead as device_create() is going away. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 19 5月, 2008 1 次提交
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由 Jonathan Corbet 提交于
Push the cdev lock_kernel() call down into the x86 msr and cpuid drivers. Signed-off-by: NJonathan Corbet <corbet@lwn.net>
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- 20 4月, 2008 1 次提交
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由 Rafael J. Wysocki 提交于
After 2.6.24 there was a plan to make the PM core acquire all device semaphores during a suspend/hibernation to protect itself from concurrent operations involving device objects. That proved to be too heavy-handed and we found a better way to achieve the goal, but before it happened, we had introduced the functions device_pm_schedule_removal() and destroy_suspended_device() to allow drivers to "safely" destroy a suspended device and we had adapted some drivers to use them. Now that these functions are no longer necessary, it seems reasonable to remove them and modify their users to use the normal device unregistration instead. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 17 4月, 2008 1 次提交
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由 Paolo Ciarrocchi 提交于
Before: total: 2 errors, 0 warnings, 231 lines checked After: total: 0 errors, 0 warnings, 231 lines checked No code changed: arch/x86/kernel/msr.o: text data bss dec hex filename 1199 12 4 1215 4bf msr.o.before 1199 12 4 1215 4bf msr.o.after md5: 604be0d07d829bc52a9346babd084bdc msr.o.before.asm 604be0d07d829bc52a9346babd084bdc msr.o.after.asm Signed-off-by: NPaolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 04 2月, 2008 1 次提交
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由 H. Peter Anvin 提交于
Instead of grabbing the BKL on seek, use the inode mutex in the style of generic_file_llseek(). Signed-off-by: NH. Peter Anvin <hpa@zytor.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 02 2月, 2008 1 次提交
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由 Sam Ravnborg 提交于
Fix the following warnings: WARNING: arch/x86/kernel/built-in.o(.exit.text+0xf8): Section mismatch in reference from the function msr_exit() to the variable .cpuinit.data:msr_class_cpu_notifier WARNING: arch/x86/kernel/built-in.o(.exit.text+0x158): Section mismatch in reference from the function cpuid_exit() to the variable .cpuinit.data:cpuid_class_cpu_notifier WARNING: arch/x86/kernel/built-in.o(.exit.text+0x171): Section mismatch in reference from the function microcode_exit() to the variable .cpuinit.data:mc_cpu_notifier In all three cases there were a function annotated __exit that referenced a variable annotated __cpuinitdata. The fix was to replace the annotation of the notifier with __refdata to tell modpost that the reference to a _cpuinit function in the notifier are OK. The unregister call that references the notifier variable will simple delete the function pointer so there is no problem ignoring the reference. Note: This looks like another case where __cpuinit has been used as replacement for proper use of CONFIG_HOTPLUG_CPU to decide what code are used for HOTPLUG_CPU. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 25 1月, 2008 1 次提交
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由 Rafael J. Wysocki 提交于
This patch reorganizes the way suspend and resume notifications are sent to drivers. The major changes are that now the PM core acquires every device semaphore before calling the methods, and calls to device_add() during suspends will fail, while calls to device_del() during suspends will block. It also provides a way to safely remove a suspended device with the help of the PM core, by using the device_pm_schedule_removal() callback introduced specifically for this purpose, and updates two drivers (msr and cpuid) that need to use it. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 20 10月, 2007 1 次提交
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由 Mike Travis 提交于
cpu_data is currently an array defined using NR_CPUS. This means that we overallocate since we will rarely really use maximum configured cpus. When NR_CPU count is raised to 4096 the size of cpu_data becomes 3,145,728 bytes. These changes were adopted from the sparc64 (and ia64) code. An additional field was added to cpuinfo_x86 to be a non-ambiguous cpu index. This corresponds to the index into a cpumask_t as well as the per_cpu index. It's used in various places like show_cpuinfo(). cpu_data is defined to be the boot_cpu_data structure for the NON-SMP case. Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NChristoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 19 10月, 2007 2 次提交
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由 Satyam Sharma 提交于
msr_class_cpu_callback() can be marked __cpuinit, being the notifier callback for a __cpuinitdata notifier_block. So can be marked msr_device_create() too, called only from the newly-__cpuinit msr_class_cpu_callback() or from __init-marked msr_init(). Signed-off-by: NSatyam Sharma <satyam@infradead.org> Cc: Andi Kleen <ak@suse.de> Acked-by: NH. Peter Anvin <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Akinobu Mita 提交于
Do msr_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE. Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Andi Kleen <ak@suse.de> Cc: Jan Beulich <jbeulich@novell.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 18 10月, 2007 1 次提交
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由 Satyam Sharma 提交于
msr_class_cpu_callback() can be marked __cpuinit, being the notifier callback for a __cpuinitdata notifier_block. So can be marked msr_device_create() too, called only from the newly-__cpuinit msr_class_cpu_callback() or from __init-marked msr_init(). [ tglx: arch/x86 adaptation ] Signed-off-by: NSatyam Sharma <satyam@infradead.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 14 10月, 2007 1 次提交
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由 Dave Jones 提交于
Since the x86 merge, lots of files that referenced their own filenames are no longer correct. Rather than keep them up to date, just delete them, as they add no real value. Additionally: - fix up comment formatting in scx200_32.c - Remove a credit from myself in setup_64.c from a time when we had no SCM - remove longwinded history from tsc_32.c which can be figured out from git. Signed-off-by: NDave Jones <davej@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 11 10月, 2007 1 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 10 5月, 2007 1 次提交
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由 Rafael J. Wysocki 提交于
Since nonboot CPUs are now disabled after tasks and devices have been frozen and the CPU hotplug infrastructure is used for this purpose, we need special CPU hotplug notifications that will help the CPU-hotplug-aware subsystems distinguish normal CPU hotplug events from CPU hotplug events related to a system-wide suspend or resume operation in progress. This patch introduces such notifications and causes them to be used during suspend and resume transitions. It also changes all of the CPU-hotplug-aware subsystems to take these notifications into consideration (for now they are handled in the same way as the corresponding "normal" ones). [oleg@tv-sign.ru: cleanups] Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 5月, 2007 1 次提交
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由 Nicolas Boichat 提交于
Use safe MSR functions provided by arch/*/lib/msr-on-cpu.c in arch/i386/kernel/msr.c. Signed-off-by: NNicolas Boichat <nicolas@boichat.ch> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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- 13 2月, 2007 2 次提交
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由 Alexey Dobriyan 提交于
It will execute rdmsr and wrmsr only on the cpu we need. Signed-off-by: NAlexey Dobriyan <adobriyan@openvz.org> Signed-off-by: NAndi Kleen <ak@suse.de>
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由 Arjan van de Ven 提交于
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. [akpm@osdl.org: sparc64 fix] Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 12月, 2006 1 次提交
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由 Josef "Jeff" Sipek 提交于
Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the i386 arch code. Signed-off-by: NJosef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 08 12月, 2006 1 次提交
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由 Ingo Molnar 提交于
There was lots of #ifdef noise in the kernel due to hotcpu_notifier(fn, prio) not correctly marking 'fn' as used in the !HOTPLUG_CPU case, and thus generating compiler warnings of unused symbols, hence forcing people to add #ifdefs. the compiler can skip truly unused functions just fine: text data bss dec hex filename 1624412 728710 3674856 6027978 5bfaca vmlinux.before 1624412 728710 3674856 6027978 5bfaca vmlinux.after [akpm@osdl.org: topology.c fix] Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 07 12月, 2006 1 次提交
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由 David Rientjes 提交于
Remove unused variable in msr_write(). Reported by D Binderman <dcb314@hotmail.com>. Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: NDavid Rientjes <rientjes@cs.washington.edu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NAndi Kleen <ak@suse.de>
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- 02 12月, 2006 1 次提交
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由 Greg Kroah-Hartman 提交于
Converts from using struct "class_device" to "struct device" making everything show up properly in /sys/devices/ with symlinks from the /sys/class directory. Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 01 7月, 2006 2 次提交
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由 Andrew Morton 提交于
register_cpu_notifier() cannot do anything in a module, in a !CONFIG_HOTPLUG_CPU kernel. Cc: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Jörn Engel 提交于
Signed-off-by: NJörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: NAdrian Bunk <bunk@stusta.de>
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- 28 6月, 2006 1 次提交
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由 Chandra Seetharaman 提交于
Make notifier_blocks associated with cpu_notifier as __cpuinitdata. __cpuinitdata makes sure that the data is init time only unless CONFIG_HOTPLUG_CPU is defined. Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 20 4月, 2006 1 次提交
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由 Randy Dunlap 提交于
Fix section mismatch warnings in x86 cpuid and msr notifier callback functions. We can't have these as init (discarded) code. WARNING: arch/x86_64/kernel/cpuid.o - Section mismatch: reference to .init.text: from .data between 'cpuid_class_cpu_notifier' (at offset 0x0) and 'cpuid_fops' WARNING: arch/x86_64/kernel/msr.o - Section mismatch: reference to .init.text: from .data between 'msr_class_cpu_notifier' (at offset 0x0) and 'msr_fops' Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 07 1月, 2006 1 次提交
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由 Daniel Marjamaki 提交于
Removed the unused variable "rv". Signed-off-by: NDaniel Marjamaki <daniel.marjamaki@comhem.se> Signed-off-by: NH. Peter Anvin <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 29 10月, 2005 1 次提交
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由 Greg Kroah-Hartman 提交于
The previous patch adding the ability to nest struct class_device changed the paramaters to the call class_device_create(). This patch fixes up all in-kernel users of the function. Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 05 9月, 2005 1 次提交
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由 Zachary Amsden 提交于
Some more assembler cleanups I noticed along the way. Signed-off-by: NZachary Amsden <zach@vmware.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 21 6月, 2005 1 次提交
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由 gregkh@suse.de 提交于
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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