Commit graph

4813 commits

Author SHA1 Message Date
Hiroshi Shimamoto
666ac7be04 x86: signal: cosmetic unification of sys_sigaltstack()
Impact: cleanup

Add #ifdef directive for unification.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 10:50:58 +01:00
Hiroshi Shimamoto
5c9b3a0c7b x86: signal: cosmetic unification of including headers
Impact: cleanup

Make the headers portion of signal_32.c and signal_64.c the same.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 10:50:57 +01:00
Hiroshi Shimamoto
3ddd972d97 x86: signal: rename COPY_SEG_STRICT to COPY_SEG_CPL3
Impact: cleanup

Rename macro COPY_SEG_STRICT to COPY_SEG_CPL3, as suggested by hpa.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-21 08:54:28 +01:00
Hiroshi Shimamoto
64977609e3 x86: ia32_signal: change order of storing in setup_sigcontext()
Impact: cleanup

Change order of storing to match the sigcontext_ia32.
And add casting to make this code same as arch/x86/kernel/signal_32.c.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-18 16:55:37 +01:00
Hiroshi Shimamoto
047ce93581 x86: ia32_signal: remove using temporary variable
Impact: cleanup

No need to use temporary variable.
Also rename the variable same as arch/x86/kernel/signal_32.c.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Reviewed-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-18 16:55:36 +01:00
Hiroshi Shimamoto
8c6e5ce0fd x86: ia32_signal: cleanup macro RELOAD_SEG
Impact: cleanup

Remove mask parameter because it's always 3.
Cleanup coding styles.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Reviewed-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-18 16:55:35 +01:00
Hiroshi Shimamoto
d71a68dca5 x86: ia32_signal: introduce COPY_SEG_CPL3
Impact: cleanup

Introduce COPY_SEG_CPL3 for ia32_restore_sigcontext().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-18 16:55:34 +01:00
Hiroshi Shimamoto
b78a5b5260 x86: ia32_signal: cleanup macro COPY
Impact: cleanup

No need to use temporary variable in this case.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-18 16:55:33 +01:00
Hiroshi Shimamoto
9cc3c49ed1 x86: ia32_signal: remove unnecessary padding
Impact: reduce structure padding

Remove unnecessary paddings, this saves 4 bytes.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-12 12:28:02 +01:00
Hiroshi Shimamoto
4a61204856 x86: signal_32: introduce retcode and rt_retcode
Impact: cleanup

Introduce retcode and rt_retcode to replace setting up frame->retcode.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-12 12:28:01 +01:00
Hiroshi Shimamoto
15002fa9bf x86: signal: cosmetic unification of setup_sigcontext()
Impact: cleanup

Make setup_sigcontext() same.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-08 10:16:10 +01:00
Hiroshi Shimamoto
8735b7d0a2 x86: signal_64: make setup_sigcontext() similar
Impact: cleanup

remove passing task struct.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-06 08:02:01 +01:00
Hiroshi Shimamoto
ee7d523c12 x86: signal_64: setup fpstate in setup_sigcontext()
Impact: cleanup

set fpstate field of signal context at setup_sigcontext().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-06 08:02:00 +01:00
Hiroshi Shimamoto
99ea1b93bf x86: ia32_signal: do save_i387_xstate_ia32 at get_sigframe()
Impact: cleanup

move calling save_i387_xstate_ia32() into get_sigframe() from
setup_sigcontext().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-06 08:02:00 +01:00
Hiroshi Shimamoto
4b33669e81 x86: signal_32: do save_i387_xstate() at get_sigframe()
Impact: cleanup

move calling save_i387_xstate() into get_sigframe() from setup_sigcontext()
like 64bit.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-06 08:01:59 +01:00
Hiroshi Shimamoto
124ffe1456 x86: signal_64: remove unused code in __setup_rt_frame()
Impact: cleanup

sizeof(*set) is always 8 on x86_64.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-04 10:00:29 +01:00
Hiroshi Shimamoto
57917752f5 x86: signal: cosmetic unification of NR_restart_syscall
Impact: cleanup

Add #ifdef directive to unify NR_restart_syscall.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-30 11:43:49 +01:00
Hiroshi Shimamoto
cabf503588 x86: signal: cosmetic unification of macros for setup_rt_frame()
Impact: cleanup

Add #ifdef directive for unification.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-30 11:43:48 +01:00
Hiroshi Shimamoto
96bf84b712 x86: signal: cosmetic unification of signr_convert()
Impact: cleanup

Make signr_convert() same.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-30 11:43:47 +01:00
Hiroshi Shimamoto
fd4a2030a3 x86: signal_64.c: get_stack() doesn't need entire regs
Impact: cleanup

get_stack() uses sp only, entire regs is not needed.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-27 14:14:02 +01:00
Hiroshi Shimamoto
709110bd56 x86: signal: cosmetic unification of restore_sigcontext()
Impact: cleanup

Make restore_sigcontext() the same.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-27 14:14:01 +01:00
Linus Torvalds
c3c9897c63 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: fix section mismatch warning - apic_x2apic_phys
  x86: fix section mismatch warning - apic_x2apic_cluster
  x86: fix section mismatch warning - apic_x2apic_uv_x
  x86: fix section mismatch warning - apic_physflat
  x86: fix section mismatch warning - apic_flat
  x86: memtest fix use of reserve_early()
  x86 syscall.h: fix argument order
  x86/tlb_uv: remove strange mc146818rtc include
  x86: remove redundant KERN_DEBUG on pr_debug
  x86: do_boot_cpu - check if we have ESR register
  x86: MAINTAINERS change for AMD microcode patch loader
  x86/proc: fix /proc/cpuinfo cpu offline bug
  x86: call dmi-quirks for HP Laptops after early-quirks are executed
  x86, kexec: fix hang on i386 when panic occurs while console_sem is held
  MCE: Don't run 32bit machine checks with interrupts on
  x86: SB600: skip IRQ0 override if it is not routed to INT2 of IOAPIC
  x86: make variables static
2008-10-23 12:38:39 -07:00
Linus Torvalds
88ed86fee6 Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc
* 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc: (35 commits)
  proc: remove fs/proc/proc_misc.c
  proc: move /proc/vmcore creation to fs/proc/vmcore.c
  proc: move pagecount stuff to fs/proc/page.c
  proc: move all /proc/kcore stuff to fs/proc/kcore.c
  proc: move /proc/schedstat boilerplate to kernel/sched_stats.h
  proc: move /proc/modules boilerplate to kernel/module.c
  proc: move /proc/diskstats boilerplate to block/genhd.c
  proc: move /proc/zoneinfo boilerplate to mm/vmstat.c
  proc: move /proc/vmstat boilerplate to mm/vmstat.c
  proc: move /proc/pagetypeinfo boilerplate to mm/vmstat.c
  proc: move /proc/buddyinfo boilerplate to mm/vmstat.c
  proc: move /proc/vmallocinfo to mm/vmalloc.c
  proc: move /proc/slabinfo boilerplate to mm/slub.c, mm/slab.c
  proc: move /proc/slab_allocators boilerplate to mm/slab.c
  proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c
  proc: move /proc/stat to fs/proc/stat.c
  proc: move rest of /proc/partitions code to block/genhd.c
  proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c
  proc: move /proc/devices code to fs/proc/devices.c
  proc: move rest of /proc/locks to fs/locks.c
  ...
2008-10-23 12:04:37 -07:00
Linus Torvalds
1f6d6e8ebe Merge branch 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits)
  hrtimers: add missing docbook comments to struct hrtimer
  hrtimers: simplify hrtimer_peek_ahead_timers()
  hrtimers: fix docbook comments
  DECLARE_PER_CPU needs linux/percpu.h
  hrtimers: fix typo
  rangetimers: fix the bug reported by Ingo for real
  rangetimer: fix BUG_ON reported by Ingo
  rangetimer: fix x86 build failure for the !HRTIMERS case
  select: fix alpha OSF wrapper
  select: fix alpha OSF wrapper
  hrtimer: peek at the timer queue just before going idle
  hrtimer: make the futex() system call use the per process slack value
  hrtimer: make the nanosleep() syscall use the per process slack
  hrtimer: fix signed/unsigned bug in slack estimator
  hrtimer: show the timer ranges in /proc/timer_list
  hrtimer: incorporate feedback from Peter Zijlstra
  hrtimer: add a hrtimer_start_range() function
  hrtimer: another build fix
  hrtimer: fix build bug found by Ingo
  hrtimer: make select() and poll() use the hrtimer range feature
  ...
2008-10-23 10:53:02 -07:00
Linus Torvalds
5b34653963 Merge branch 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
  x86: canonicalize remaining header guards
  x86: drop double underscores from header guards
  x86: Fix ASM_X86__ header guards
  x86, um: get rid of uml-config.h
  x86, um: get rid of arch/um/Kconfig.arch
  x86, um: get rid of arch/um/os symlink
  x86, um: get rid of excessive includes of uml-config.h
  x86, um: get rid of header symlinks
  x86, um: merge Kconfig.i386 and Kconfig.x86_64
  x86, um: get rid of sysdep symlink
  x86, um: trim the junk from uml ptrace-*.h
  x86, um: take vm-flags.h to sysdep
  x86, um: get rid of uml asm/arch
  x86, um: get rid of uml highmem.h
  x86, um: get rid of uml unistd.h
  x86, um: get rid of system.h -> system.h include
  x86, um: uml atomic.h is not needed anymore
  x86, um: untangle uml ldt.h
  x86, um: get rid of more uml asm/arch uses
  x86, um: remove dead header (uml module-generic.h; never used these days)
  ...
2008-10-23 10:22:01 -07:00
Linus Torvalds
765426e8ee Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (123 commits)
  dock: make dock driver not a module
  ACPI: fix ia64 build warning
  ACPI: hack around sysfs warning with link order
  ACPI suspend: fix build warning when CONFIG_ACPI_SLEEP=n
  intel_menlo: fix build warning
  panasonic-laptop: fix build
  ACPICA: Update version to 20080926
  ACPICA: Add support for zero-length buffer-to-string conversions
  ACPICA: New: Validation for predefined ACPI methods/objects
  ACPICA: Fix for implicit return compatibility
  ACPICA: Fixed a couple memory leaks associated with "implicit return"
  ACPICA: Optimize buffer allocation procedure
  ACPICA: Fix possible memory leak, error exit path
  ACPICA: Fix fault after mem allocation failure in AML parser
  ACPICA: Remove unused ACPI register bit definition
  ACPICA: Update version to 20080829
  ACPICA: Fix possible memory leak in acpi_ns_get_external_pathname
  ACPICA: Cleanup for internal Reference Object
  ACPICA: Update comments - no functional changes
  ACPICA: Update for Reference ACPI_OPERAND_OBJECT
  ...
2008-10-23 10:20:36 -07:00
Linus Torvalds
92fb83afd6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (21 commits)
  OProfile: Fix buffer synchronization for IBS
  oprofile: hotplug cpu fix
  oprofile: fixing whitespaces in arch/x86/oprofile/*
  oprofile: fixing whitespaces in arch/x86/oprofile/*
  oprofile: fixing whitespaces in drivers/oprofile/*
  x86/oprofile: add the logic for enabling additional IBS bits
  x86/oprofile: reordering functions in nmi_int.c
  x86/oprofile: removing unused function parameter in add_ibs_begin()
  oprofile: more whitespace fixes
  oprofile: whitespace fixes
  OProfile: Rename IBS sysfs dir into "ibs_op"
  OProfile: Rework string handling in setup_ibs_files()
  OProfile: Rework oprofile_add_ibs_sample() function
  oprofile: discover counters for op ppro too
  oprofile: Implement Intel architectural perfmon support
  oprofile: Don't report Nehalem as core_2
  oprofile: drop const in num counters field
  Revert "Oprofile Multiplexing Patch"
  x86, oprofile: BUG: using smp_processor_id() in preemptible code
  x86/oprofile: fix on_each_cpu build error
  ...

Manually fixed trivial conflicts in
	drivers/oprofile/{cpu_buffer.c,event_buffer.h}
2008-10-23 10:05:40 -07:00
Linus Torvalds
6770ab5cf5 Merge git://git.infradead.org/iommu-2.6
* git://git.infradead.org/iommu-2.6:
  Admit to maintaining VT-d, for my sins.
  dmar: fix uninitialised 'ret' variable in dmar_parse_dev()
  intel-iommu: use coherent_dma_mask in alloc_coherent
  amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errors
  intel-iommu: IA64 support
  dmar: remove the quirk which disables dma-remapping when intr-remapping enabled
  dmar: Use queued invalidation interface for IOTLB and context invalidation
  dmar: context cache and IOTLB invalidation using queued invalidation
  dmar: use spin_lock_irqsave() in qi_submit_sync()
2008-10-23 09:53:14 -07:00
Alexey Dobriyan
e1759c215b proc: switch /proc/meminfo to seq_file
and move it to fs/proc/meminfo.c while I'm at it.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23 13:52:40 +04:00
H. Peter Anvin
5e1b00758b x86: canonicalize remaining header guards
Canonicalize a few remaining header guards, with the exception for
those which are still in subarchitecture directories.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-23 00:20:33 -07:00
H. Peter Anvin
05e4d3169b x86: drop double underscores from header guards
Drop double underscores from header guards in arch/x86/include.  They
are used inconsistently, and are not necessary.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-23 00:01:39 -07:00
H. Peter Anvin
1965aae3c9 x86: Fix ASM_X86__ header guards
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since:

a. the double underscore is ugly and pointless.
b. no leading underscore violates namespace constraints.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:23 -07:00
Al Viro
bb8985586b x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:20 -07:00
Len Brown
1ca2cc728d Merge branch 'bugzilla-11715' into test 2008-10-23 01:28:19 -04:00
Len Brown
057316cc6a Merge branch 'linus' into test
Conflicts:
	MAINTAINERS
	arch/x86/kernel/acpi/boot.c
	arch/x86/kernel/acpi/sleep.c
	drivers/acpi/Kconfig
	drivers/pnp/Makefile
	drivers/pnp/quirks.c

Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-23 00:11:07 -04:00
Len Brown
1b79b27da1 Merge branch 'yinghai' into test 2008-10-22 23:35:56 -04:00
Len Brown
5f50ef453d Merge branch 'misc' into test 2008-10-22 23:28:38 -04:00
Len Brown
530bc23bfe Merge branch 'i7300_idle' into test 2008-10-22 23:28:36 -04:00
Len Brown
4538fad56e Merge branch 'cpuidle' into test 2008-10-22 23:20:05 -04:00
Len Brown
6b3c4f8b9c Merge branch 'FW_BUG' into test 2008-10-22 23:19:45 -04:00
Marcin Slusarz
3cfba08925 x86: fix section mismatch warning - apic_x2apic_phys
Impact: cleanup only, no functionality changed

WARNING: vmlinux.o(.data+0xc008): Section mismatch in reference from the variable apic_x2apic_phys to the function .init.text:x2apic_acpi_madt_oem_check()
The variable apic_x2apic_phys references
the function __init x2apic_acpi_madt_oem_check()

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 17:36:30 +02:00
Marcin Slusarz
2caa37150d x86: fix section mismatch warning - apic_x2apic_cluster
Impact: cleanup only, no functionality changed

WARNING: vmlinux.o(.data+0xbf88): Section mismatch in reference from the variable apic_x2apic_cluster to the function .init.text:x2apic_acpi_madt_oem_check()
The variable apic_x2apic_cluster references
the function __init x2apic_acpi_madt_oem_check()

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 17:36:29 +02:00
Marcin Slusarz
f8827c017f x86: fix section mismatch warning - apic_x2apic_uv_x
Impact: cleanup only, no functionality changed

WARNING: vmlinux.o(.data+0xbf08): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .init.text:uv_acpi_madt_oem_check()
The variable apic_x2apic_uv_x references
the function __init uv_acpi_madt_oem_check()

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 17:36:28 +02:00
Marcin Slusarz
fae1721601 x86: fix section mismatch warning - apic_physflat
Impact: cleanup only, no functionality changed

WARNING: vmlinux.o(.data+0xbe88): Section mismatch in reference from the variable apic_physflat to the function .init.text:physflat_acpi_madt_oem_check()
The variable apic_physflat references
the function __init physflat_acpi_madt_oem_check()

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 17:36:27 +02:00
Marcin Slusarz
983f91ff94 x86: fix section mismatch warning - apic_flat
Impact: cleanup only, no functionality changed

WARNING: vmlinux.o(.data+0xbe08): Section mismatch in reference from the variable apic_flat to the function .init.text:flat_acpi_madt_oem_check()
The variable apic_flat references
the function __init flat_acpi_madt_oem_check()

This is harmless, because the .acpi_madt_oem_check is only called
during init time. But we keep the function pointer around in a .data
function pointer template, so it's better we do not keep that stale
- so mark this function non-__init.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 17:36:26 +02:00
Daniele Calore
2cb0ebeeb6 x86: memtest fix use of reserve_early()
Hi all,

Wrong usage of 2nd parameter in reserve_early call.
66/75: reserve_early(start_bad, last_bad - start_bad, "BAD RAM");
                                ^^^^^^^^^^^^^^^^^^^^

The correct way is to use 'end' address and not 'size'.
As a bonus a fix to the printk format.

Signed-off-by: Daniele Calore <orkaan@orkaan.org>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 17:08:06 +02:00
Jeremy Fitzhardinge
aef8f5b8c2 x86/tlb_uv: remove strange mc146818rtc include
For some reason tlb_uv was including linux/mc146818rtc.h.  It really
just needs linux/seq_file.h

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citix.com>
Cc: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 16:56:23 +02:00
Gustavo F. Padovan
55410791c9 x86: remove redundant KERN_DEBUG on pr_debug
pr_debug don't need KERN_DEBUG.

Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 16:56:22 +02:00
Cyrill Gorcunov
db96b0a0e4 x86: do_boot_cpu - check if we have ESR register
Impact: fix APIC IRQ irregularities on certain older boxes

We should touch the APIC ESR register if only we have it.

The patch fixes the problem mentioned by Max Kellermann:

	http://lkml.org/lkml/2008/10/17/147

Bisected-by: Max Kellermann <mk@cm4all.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
[ mingo@elte.hu: build fix ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 16:56:16 +02:00
Lai Jiangshan
bc8bcc79ea x86/proc: fix /proc/cpuinfo cpu offline bug
Impact: fix missing CPUs in /proc/cpuinfo after CPU hotunplug/hotreplug

In my test, I found that if a cpu has been offline,
the next cpus may not be shown in the /proc/cpuinfo.

if one read() cannot consume the whole /proc/cpuinfo,
c_start() will be called again in the next read() calls.
And *pos has been increased by 1 by the caller(seq_read()).
if this time the cpu#*pos is offline, c_start() will return
NULL, and the next cpus can not be shown.

this fix use next_cpu_nr(*pos - 1, cpu_online_map) to
search the next unshown cpu.

the most easy way to reproduce this bug:
1) offline cpu#1             (cpu#0 is online)
2) dd ibs=2 if=/proc/cpuinfo
   the result is that only cpu#0 is shown.
   cpu#2 and cpu#3 .... cannot be shown in /proc/cpuinfo
   it's bug.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 14:29:37 +02:00