diff options
author | Nick Piggin <npiggin@suse.de> | 2006-03-22 03:08:08 -0500 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 10:53:58 -0500 |
commit | a482289d46587ffcda4c85aab109fb74910d7a48 (patch) | |
tree | 351dc5d9c09a4fe3d122c2157a298852ac8a821c /include/linux/slab.h | |
parent | 545b1ea9bfa5a8ca9af33d63144bd4f2faaea8dd (diff) |
[PATCH] hugepage allocator cleanup
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>
Diffstat (limited to 'include/linux/slab.h')
0 files changed, 0 insertions, 0 deletions