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Linus Torvalds 3d80636a0d Fix memory ordering bug in page reclaim ... As noticed by Nick Piggin, we need to make sure that we check the page count before we check for PageDirty, since the dirty check is only valid if the count implies that we're the only possible ones holding the page. We always did do this, but the code needs a read-memory-barrier to make sure that the orderign is also honored by the CPU. (The writer side is ordered due to the atomic decrement and test on the page count, see the discussion on linux-kernel) Signed-off-by: Linus Torvalds <torvalds@osdl.org>		20 years ago
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Kconfig	…
Makefile	…
bootmem.c	…
fadvise.c	…
filemap.c	[PATCH] mm/filemap.c: make two functions static	20 years ago
filemap.h	…
filemap_xip.c	[PATCH] execute-in-place fixes	20 years ago
fremap.c	[PATCH] Don't map the same page too much	20 years ago
highmem.c	…
hugetlb.c	…
internal.h	…
madvise.c	…
memory.c	…
mempolicy.c	…
mempool.c	…
mincore.c	…
mlock.c	…
mmap.c	[PATCH] fix locking comment in unmap_region()	20 years ago
mprotect.c	[PATCH] mm: add a note about partially hardcoded VM_* flags	20 years ago
mremap.c	…
msync.c	…
nommu.c	…
oom_kill.c	…
page-writeback.c	…
page_alloc.c	…
page_io.c	…
pdflush.c	…
prio_tree.c	…
readahead.c	…
rmap.c	…
shmem.c	…
slab.c	…
sparse.c	…
swap.c	…
swap_state.c	…
swapfile.c	…
thrash.c	Linux-2.6.12-rc2	20 years ago
tiny-shmem.c	…
truncate.c	…
vmalloc.c	…
vmscan.c	Fix memory ordering bug in page reclaim	20 years ago