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e97ca8e5b8
linux/arch/ia64/kernel
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Johannes Weiner e97ca8e5b8 mm: fix GFP_THISNODE callers and clarify 
GFP_THISNODE is for callers that implement their own clever fallback to
remote nodes.  It restricts the allocation to the specified node and
does not invoke reclaim, assuming that the caller will take care of it
when the fallback fails, e.g.  through a subsequent allocation request
without GFP_THISNODE set.

However, many current GFP_THISNODE users only want the node exclusive
aspect of the flag, without actually implementing their own fallback or
triggering reclaim if necessary.  This results in things like page
migration failing prematurely even when there is easily reclaimable
memory available, unless kswapd happens to be running already or a
concurrent allocation attempt triggers the necessary reclaim.

Convert all callsites that don't implement their own fallback strategy
to __GFP_THISNODE.  This restricts the allocation a single node too, but
at the same time allows the allocator to enter the slowpath, wake
kswapd, and invoke direct reclaim if necessary, to make the allocation
happen when memory is full.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-10 17:26:19 -07:00
..
.gitignore [IA64] Cleanup generated file not ignored by .gitignore 2008-08-04 11:06:16 -07:00
acpi-ext.c 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
acpi.c ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
asm-offsets.c ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
audit.c [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
brl_emu.c
crash_dump.c crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn 2011-03-23 19:47:19 -07:00
crash.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
cyclone.c ia64: Replace clocksource.fsys_mmio with generic arch data 2011-07-14 17:57:09 -07:00
dma-mapping.c ia64: Add export.h to arch/ia64 specific files as required 2011-10-31 19:30:58 -04:00
efi_stub.S
efi.c efi: x86: ia64: provide a generic efi_config_init() 2013-09-05 13:29:29 +01:00
elfcore.c switch elf_core_write_extra_data() to dump_emit() 2013-11-09 00:16:23 -05:00
entry.h
entry.S [IA64] Wire up new sched_setattr and sched_getattr syscalls 2014-01-28 09:52:53 -08:00
err_inject.c [IA64] Delete __cpuinit usage from all ia64 users 2013-06-24 15:44:27 -07:00
esi_stub.S
esi.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
fsys.S Fix broken fsys_getppid() 2013-03-19 16:14:52 -07:00
fsyscall_gtod_data.h ia64: vsyscall: Use seqcount instead of seqlock 2012-03-15 18:17:59 -07:00
ftrace.c ftrace, ia64: IA64 dynamic ftrace support 2009-01-14 12:11:31 +01:00
gate-data.S Rename .data.gate to .data..gate. 2010-03-03 11:25:59 +01:00
gate.lds.S Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
gate.S Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
head.S ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
ia64_ksyms.c treewide: Put a space between #include and FILE 2012-06-28 11:44:36 +02:00
init_task.c Rename .data.init_task to .data..init_task. 2010-03-03 11:25:58 +01:00
iosapic.c Fix kexec oops when iosapic was removed 2013-03-19 16:14:53 -07:00
irq_ia64.c random: remove rand_initialize_irq() 2012-07-19 10:38:32 -04:00
irq_lsapic.c ia64: Convert lsapic to new irq_chip functions 2011-03-29 14:48:02 +02:00
irq.c Fix initialization of CMCI/CMCP interrupts 2013-04-02 09:37:06 -07:00
ivt.S cputime: Generic on-demand virtual cputime accounting 2013-01-27 19:23:27 +01:00
jprobes.S [IA64] Move include/asm-ia64 to arch/ia64/include/asm 2008-08-01 10:21:21 -07:00
kprobes.c doc: typo on word accounting in kprobes.c in mutliple architectures 2013-10-14 15:46:39 +02:00
machine_kexec.c [IA64] kexec: Move the dereference below the NULL test 2012-09-10 14:31:23 -07:00
machvec.c Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
Makefile cpufreq: ia64: move cpufreq driver to drivers/cpufreq 2013-04-10 13:19:25 +02:00
Makefile.gate Rename .data.gate to .data..gate. 2010-03-03 11:25:59 +01:00
mca_asm.S percpu: make percpu symbols in ia64 unique 2009-10-29 22:34:14 +09:00
mca_drv_asm.S
mca_drv.c Remove cast for kmalloc return value 2013-03-19 16:14:53 -07:00
mca_drv.h
mca.c [IA64] Delete __cpuinit usage from all ia64 users 2013-06-24 15:44:27 -07:00
minstate.h cputime: Generic on-demand virtual cputime accounting 2013-01-27 19:23:27 +01:00
module.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
msi_ia64.c arch/ia64: remove references to cpu_*_map 2012-03-28 17:14:36 -07:00
nr-irqs.c ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
numa.c [IA64] Delete __cpuinit usage from all ia64 users 2013-06-24 15:44:27 -07:00
pal.S
palinfo.c [IA64] Delete __cpuinit usage from all ia64 users 2013-06-24 15:44:27 -07:00
paravirt_inst.h ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
paravirt_patch.c ia64/pv_op/binarypatch: add helper functions to support binary patching for paravirt_ops. 2009-03-26 11:02:31 -07:00
paravirt_patchlist.c [IA64] Fix build error in paravirt_patchlist.c 2009-06-17 09:04:40 -07:00
paravirt_patchlist.h ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
paravirt.c static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]() 2012-02-24 10:05:59 +01:00
paravirtentry.S Rename .data.read_mostly to .data..read_mostly. 2010-03-03 11:26:00 +01:00
patch.c Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
pci-dma.c [IA64] pci: Remove unused fallback_dev 2013-06-03 16:04:31 -07:00
pci-swiotlb.c X86 & IA64: adapt for dma_map_ops changes 2012-03-28 16:36:31 +02:00
perfmon_default_smpl.c Fix common misspellings 2011-03-31 11:26:23 -03:00
perfmon_generic.h
perfmon_itanium.h
perfmon_mckinley.h
perfmon_montecito.h
perfmon.c consolidate simple ->d_delete() instances 2013-11-15 22:04:17 -05:00
process.c dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
ptrace.c ia64: kill thread_matches(), unexport ptrace_check_attach() 2013-01-20 12:26:05 -08:00
relocate_kernel.S percpu: make percpu symbols in ia64 unique 2009-10-29 22:34:14 +09:00
sal.c
salinfo.c [IA64] Delete __cpuinit usage from all ia64 users 2013-06-24 15:44:27 -07:00
setup.c DMI: Parse memory device (type 17) in SMBIOS 2013-10-23 10:10:12 -07:00
sigframe.h
signal.c constify copy_siginfo_to_user{,32}() 2013-11-09 00:16:29 -05:00
smp.c Merge branch 'akpm' (Andrew's patch-bomb) 2012-03-28 17:19:28 -07:00
smpboot.c [IA64] Delete __cpuinit usage from all ia64 users 2013-06-24 15:44:27 -07:00
stacktrace.c [IA64] Add CONFIG_STACKTRACE_SUPPORT 2010-09-23 13:52:07 -07:00
sys_ia64.c mm: use vm_unmapped_area() on ia64 architecture 2013-02-22 13:46:59 -08:00
time.c kvm: Prepare to add generic guest entry/exit callbacks 2013-01-27 20:35:40 +01:00
topology.c [IA64] Delete __cpuinit usage from all ia64 users 2013-06-24 15:44:27 -07:00
traps.c [IA64] Fix trap #45 handling 2013-06-03 15:47:42 -07:00
unaligned.c [IA64] use __ratelimit 2010-05-18 14:45:54 -07:00
uncached.c mm: fix GFP_THISNODE callers and clarify 2014-03-10 17:26:19 -07:00
unwind_decoder.c
unwind_i.h
unwind.c Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
vmlinux.lds.S ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00