kernel_optimize_test/mm
Minchan Kim 45973d74fd vmscan: check high watermark after shrink zone
Kswapd checks that zone has sufficient pages free via zone_watermark_ok().

If any zone doesn't have enough pages, we set all_zones_ok to zero.
!all_zone_ok makes kswapd retry rather than sleeping.

I think the watermark check before shrink_zone() is pointless.  Only after
kswapd has tried to shrink the zone is the check meaningful.

Move the check to after the call to shrink_zone().

[akpm@linux-foundation.org: fix comment, layout]
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06 11:26:24 -08:00
..
backing-dev.c
bootmem.c x86: Make 64 bit use early_res instead of bootmem before slab 2010-02-12 09:41:59 -08:00
bounce.c
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c failslab: add ability to filter slab caches 2010-02-26 19:19:39 +02:00
filemap_xip.c mm: clean up mm_counter 2010-03-06 11:26:23 -08:00
filemap.c mm: use rlimit helpers 2010-03-06 11:26:24 -08:00
fremap.c mm: clean up mm_counter 2010-03-06 11:26:23 -08:00
highmem.c
hugetlb.c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
hwpoison-inject.c
init-mm.c
internal.h
Kconfig Merge branch 'x86-bootmem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-03 08:15:05 -08:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
maccess.c maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write) 2010-01-07 11:58:36 -06:00
madvise.c
Makefile
memcontrol.c memcg: ensure list is empty at rmdir 2010-01-16 12:15:39 -08:00
memory_hotplug.c
memory-failure.c HWPOISON: Add PROC_FS dependency to hwpoison injector v2 2009-12-21 19:56:42 +01:00
memory.c mm: count swap usage 2010-03-06 11:26:24 -08:00
mempolicy.c
mempool.c
migrate.c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
mincore.c
mlock.c mm: use rlimit helpers 2010-03-06 11:26:24 -08:00
mm_init.c
mmap.c mm: use rlimit helpers 2010-03-06 11:26:24 -08:00
mmu_context.c mm: export use_mm/unuse_mm to modules 2010-01-15 01:43:28 -08:00
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c mm: use rlimit helpers 2010-03-06 11:26:24 -08:00
msync.c
nommu.c nommu: fix shared mmap after truncate shrinkage problems 2010-01-16 12:15:40 -08:00
oom_kill.c mm: clean up mm_counter 2010-03-06 11:26:23 -08:00
page_alloc.c Merge branch 'x86-bootmem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-03 08:15:05 -08:00
page_cgroup.c
page_io.c
page_isolation.c
page-writeback.c
pagewalk.c
percpu.c early_res: Add free_early_partial() 2010-02-26 08:25:35 +01:00
prio_tree.c
quicklist.c
readahead.c
rmap.c mm: count swap usage 2010-03-06 11:26:24 -08:00
shmem.c
slab.c Merge branches 'slab/cleanups', 'slab/failslab', 'slab/fixes' and 'slub/percpu' into slab-for-linus 2010-03-04 12:07:50 +02:00
slob.c
slub.c SLUB: Fix per-cpu merge conflict 2010-03-04 12:09:43 +02:00
sparse-vmemmap.c sparsemem: Put mem map for one node together. 2010-02-12 09:42:38 -08:00
sparse.c sparsemem: Fix compilation on PowerPC 2010-03-01 17:59:24 -08:00
swap_state.c
swap.c
swapfile.c mm: count swap usage 2010-03-06 11:26:24 -08:00
thrash.c
truncate.c vfs: Fix vmtruncate() regression 2010-01-13 16:09:33 -08:00
util.c nommu: don't need get_unmapped_area() for NOMMU 2010-01-16 12:15:40 -08:00
vmalloc.c mm: purge fragmented percpu vmap blocks 2010-02-02 12:50:47 -08:00
vmscan.c vmscan: check high watermark after shrink zone 2010-03-06 11:26:24 -08:00
vmstat.c this_cpu: Remove pageset_notifier 2010-01-05 15:34:51 +09:00