Hugh Dickins 1b76b02f15 mm: raise MemFree by reverting percpu_pagelist_fraction to 0 ... Why is there less MemFree than there used to be? It perturbed a test, so I've just been bisecting linux-next, and now find the offender went upstream yesterday. Commit 93278814d3 "mm: fix division by 0 in percpu_pagelist_fraction()" mistakenly initialized percpu_pagelist_fraction to the sysctl's minimum 8, which leaves 1/8th of memory on percpu lists (on each cpu??); but most of us expect it to be left unset at 0 (and it's not then used as a divisor). MemTotal: 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB Repetitive test with percpu_pagelist_fraction 8: MemFree: 6948420kB 6237172kB 6949696kB 6840692kB 6949048kB 6862984kB Same test with percpu_pagelist_fraction back to 0: MemFree: 7945000kB 7944908kB 7948568kB 7949060kB 7948796kB 7948812kB Signed-off-by: Hugh Dickins <hughd@google.com> [ We really should fix the crazy sysctl interface too, but that's a separate thing - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-05-11 09:23:39 -07:00
..
backing-dev.c
bootmem.c
bounce.c
cleancache.c
compaction.c
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c
filemap.c	radix-tree: use iterators in find_get_pages* functions	2012-03-28 17:14:37 -07:00
filemap_xip.c
fremap.c
highmem.c
huge_memory.c
hugetlb.c	hugetlb: prevent BUG_ON in hugetlb_fault() -> hugetlb_cow()	2012-05-10 15:06:44 -07:00
hwpoison-inject.c
init-mm.c
internal.h
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
maccess.c
madvise.c
Makefile
memblock.c	memblock: memblock should be able to handle zero length operations	2012-04-20 11:18:46 -07:00
memcontrol.c	memcg: free spare array to avoid memory leak	2012-05-10 15:06:44 -07:00
memory-failure.c
memory.c
memory_hotplug.c
mempolicy.c	mm: fix NULL ptr dereference in migrate_pages	2012-04-25 21:26:34 -07:00
mempool.c
migrate.c	mm: fix NULL ptr dereference in move_pages	2012-04-25 21:26:34 -07:00
mincore.c
mlock.c
mm_init.c
mmap.c	kill mm argument of vm_munmap()	2012-04-21 01:58:20 -04:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c	mm: nobootmem: fix sign extend problem in __free_pages_memory()	2012-05-10 15:06:44 -07:00
nommu.c	kill mm argument of vm_munmap()	2012-04-21 01:58:20 -04:00
oom_kill.c
page-writeback.c
page_alloc.c	mm: raise MemFree by reverting percpu_pagelist_fraction to 0	2012-05-11 09:23:39 -07:00
page_cgroup.c
page_io.c
page_isolation.c
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c	kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP	2012-05-09 10:13:29 -07:00
pgtable-generic.c
prio_tree.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c
shmem.c
slab.c
slob.c
slub.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-03-28 17:19:28 -07:00
sparse-vmemmap.c
sparse.c
swap.c
swap_state.c	mm: fix s390 BUG by __set_page_dirty_no_writeback on swap	2012-04-23 18:19:22 -07:00
swapfile.c	swapon: check validity of swap_flags	2012-03-28 17:14:35 -07:00
thrash.c
truncate.c
util.c
vmalloc.c
vmscan.c	mm: fix up the vmscan stat in vmstat	2012-04-25 21:26:33 -07:00
vmstat.c	mm: fix up the vmscan stat in vmstat	2012-04-25 21:26:33 -07:00