a482289d46
Insert "fresh" huge pages into the hugepage allocator by the same means as they are freed back into it. This reduces code size and allows enqueue_huge_page to be inlined into the hugepage free fastpath. Eliminate occurances of hugepages on the free list with non-zero refcount. This can allow stricter refcount checks in future. Also required for lockless pagecache. Signed-off-by: Nick Piggin <npiggin@suse.de> "This patch also eliminates a leak "cleaned up" by re-clobbering the refcount on every allocation from the hugepage freelists. With respect to the lockless pagecache, the crucial aspect is to eliminate unconditional set_page_count() to 0 on pages with potentially nonzero refcounts, though closer inspection suggests the assignments removed are entirely spurious." Acked-by: William Irwin <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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.. | ||
bootmem.c | ||
fadvise.c | ||
filemap.c | ||
filemap.h | ||
filemap_xip.c | ||
fremap.c | ||
highmem.c | ||
hugetlb.c | ||
internal.h | ||
Kconfig | ||
madvise.c | ||
Makefile | ||
memory.c | ||
memory_hotplug.c | ||
mempolicy.c | ||
mempool.c | ||
mincore.c | ||
mlock.c | ||
mmap.c | ||
mprotect.c | ||
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 | ||
slob.c | ||
sparse.c | ||
swap.c | ||
swap_state.c | ||
swapfile.c | ||
thrash.c | ||
tiny-shmem.c | ||
truncate.c | ||
util.c | ||
vmalloc.c | ||
vmscan.c |