leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
5d3a551c28
linux/arch/ia64/include/asm
History
Will Deacon 5d3a551c28 mm: hugetlb: add arch hook for clearing page flags before entering pool 
The core page allocator ensures that page flags are zeroed when freeing
pages via free_pages_check.  A number of architectures (ARM, PPC, MIPS)
rely on this property to treat new pages as dirty with respect to the data
cache and perform the appropriate flushing before mapping the pages into
userspace.

This can lead to cache synchronisation problems when using hugepages,
since the allocator keeps its own pool of pages above the usual page
allocator and does not reset the page flags when freeing a page into the
pool.

This patch adds a new architecture hook, arch_clear_hugepage_flags, so
that architectures which rely on the page flags being in a particular
state for fresh allocations can adjust the flags accordingly when a page
is freed into the pool.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:22:24 +09:00
..
native
sn Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
uv Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
xen xen/arm: Introduce xen_ulong_t for unsigned long 2012-09-14 13:34:43 +00:00
acpi-ext.h
acpi.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
agp.h
asm-offsets.h
asmmacro.h Rename .data..patch.XXX to .data..patch.XXX. 2010-03-03 11:25:59 +01:00
atomic.h [IA64] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts 2012-07-26 10:55:26 -07:00
auxvec.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
barrier.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
bitops.h asm-generic: add another generic ext2 atomic bitops 2011-07-26 16:49:46 -07:00
bitsperlong.h
break.h
bug.h
bugs.h
byteorder.h
cache.h Rename .data.read_mostly to .data..read_mostly. 2010-03-03 11:26:00 +01:00
cacheflush.h
checksum.h
clocksource.h clocksource: Change __ARCH_HAS_CLOCKSOURCE_DATA to a CONFIG option 2011-07-21 13:34:05 -07:00
cmpxchg.h ia64: populate the cmpxchg header with appropriate code 2012-04-13 13:15:16 -04:00
cpu.h
cputime.h Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-01-06 08:44:54 -08:00
current.h
cyclone.h
delay.h
device.h iommu: Rename the DMAR and INTR_REMAP config options 2011-09-21 10:22:03 +02:00
div64.h
dma-mapping.h X86 & IA64: adapt for dma_map_ops changes 2012-03-28 16:36:31 +02:00
dma.h
dmi.h include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
elf.h elf coredump: replace ELF_CORE_EXTRA_* macros by functions 2010-03-06 11:26:45 -08:00
emergency-restart.h
errno.h
esi.h
exec.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
fb.h
fcntl.h
fpswa.h
fpu.h
ftrace.h [IA64] sanity in #include files. Move fnptr to types.h 2010-01-06 15:52:35 -08:00
futex.h ia64: fix futex_atomic_cmpxchg_inatomic() 2012-04-16 18:30:01 -07:00
gcc_intrin.h
gpio.h gpiolib/arches: Centralise bolierplate asm/gpio.h 2012-05-11 18:00:14 -06:00
hardirq.h [IA64] Move local_softirq_pending() definition 2010-10-19 13:31:11 +02:00
hpsim.h hpsim, initialize chip for assigned irqs 2012-03-08 12:26:30 -08:00
hugetlb.h mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
hw_irq.h ia64: Remove redundant declaration of irq_desc[] 2011-03-29 14:48:05 +02:00
ia64regs.h
idle.h
intel_intrin.h
intrinsics.h ia64: populate the cmpxchg header with appropriate code 2012-04-13 13:15:16 -04:00
io.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
ioctl.h
ioctls.h ioctl: Use asm-generic/ioctls.h on ia64 (enables termiox) 2010-10-22 10:20:00 -07:00
iommu_table.h ia64, iommu: Add a dummy iommu_table.h file in IA64. 2010-10-08 13:11:11 -07:00
iommu.h iommu: Remove group_mf 2012-06-25 13:48:30 +02:00
iosapic.h
ipcbuf.h consolidate a bunch of ipcbuf.h instances 2012-01-03 22:55:18 -05:00
irq_regs.h
irq_remapping.h iommu: rename intr_remapping.[ch] to irq_remapping.[ch] 2012-05-07 14:35:00 +02:00
irq.h
irqflags.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
Kbuild [IA64] Add cmpxchg.h to exported userspace headers 2012-05-16 14:04:38 -07:00
kdebug.h
kexec.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
kmap_types.h
kprobes.h [IA64] sanity in #include files. Move fnptr to types.h 2010-01-06 15:52:35 -08:00
kregs.h
kvm_host.h KVM: Fix page-crossing MMIO 2012-04-19 20:35:07 -03:00
kvm_para.h kvmclock: Add functions to check if the host has stopped the vm 2012-04-08 12:48:59 +03:00
kvm.h KVM: Introduce __KVM_HAVE_IRQ_LINE 2012-06-18 16:06:35 +03:00
libata-portmap.h
linkage.h
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h
machvec_dig_vtd.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec_dig.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec_hpsim.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec_hpzx1_swiotlb.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec_hpzx1.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec_init.h
machvec_sn2.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec_uv.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec_xen.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
machvec.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
mc146818rtc.h
mca_asm.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
mca.h [IA64] Save I-resources to ia64_sal_os_state 2009-12-14 16:37:58 -08:00
meminit.h
mman.h
mmu_context.h
mmu.h
mmzone.h [IA64] removing redundant ifdef 2010-05-18 14:45:52 -07:00
module.h
msgbuf.h
msidef.h
mutex.h
nodedata.h
numa.h [IA64] Fix a node distance bug 2012-09-10 14:14:48 -07:00
page.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
pal.h Fix common misspellings 2011-03-31 11:26:23 -03:00
param.h
paravirt_patch.h
paravirt_privop.h
paravirt.h static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]() 2012-02-24 10:05:59 +01:00
parport.h
patch.h
pci.h Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
percpu.h Merge branch 'for-35' of git://repo.or.cz/linux-kbuild 2010-06-01 08:55:52 -07:00
perfmon_default_smpl.h Fix common misspellings 2011-03-31 11:26:23 -03:00
perfmon.h fix typos 'comamnd' -> 'command' in comments 2011-02-02 11:31:21 +01:00
pgalloc.h
pgtable.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
poll.h
posix_types.h bury __kernel_nlink_t, make internal nlink_t consistent 2012-05-30 21:04:50 -04:00
processor.h [IA64] Rename platform_name to ia64_platform_name 2012-07-25 11:47:16 -07:00
ptrace_offsets.h
ptrace.h Audit: push audit success and retcode into arch ptrace.h 2012-01-17 16:16:56 -05:00
pvclock-abi.h
resource.h
rse.h
rwsem.h rwsem: Move duplicate function prototypes to linux/rwsem.h 2011-01-27 12:30:39 +01:00
sal.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
scatterlist.h remove needless ISA_DMA_THRESHOLD 2010-08-07 18:15:50 +02:00
sections.h
segment.h
sembuf.h
serial.h
setup.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h Add _addr_lsb field to ia64 siginfo 2010-10-12 09:37:10 +02:00
signal.h
smp.h
socket.h net: Add framework to allow sending packets with customized CRC. 2012-02-24 01:37:35 -08:00
sockios.h
sparsemem.h
spinlock_types.h
spinlock.h Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
stat.h
statfs.h
string.h
swab.h
swiotlb.h
switch_to.h cputime: Consolidate vtime handling on context switch 2012-08-20 13:05:28 +02:00
sync_bitops.h
syscall.h [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h
thread_info.h set_restore_sigmask() is never called without SIGPENDING (and never should be) 2012-06-01 12:58:50 -04:00
timex.h
tlb.h ia64: mmu_gather rework 2011-05-25 08:39:15 -07:00
tlbflush.h
topology.h sched/numa: Rewrite the CONFIG_NUMA sched domain support 2012-05-09 15:00:55 +02:00
types.h consolidate umode_t declarations 2012-01-03 22:55:17 -05:00
uaccess.h
ucontext.h
unaligned.h
uncached.h
unistd.h ia64: Add accept4() syscall 2012-01-09 12:55:10 -08:00
unwind.h
user.h
ustack.h
vga.h
xor.h