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authorNick Piggin <nickpiggin@yahoo.com.au>2006-01-06 00:11:12 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:33:27 -0800
commit9617d95e6e9ffd883cf90a89724fe60d7ab22f9a (patch)
tree67d555d34d931bd253fbc4959ffdb1e5b904f2b0 /mm/memory.c
parent224abf92b2f439a9030f21d2926ec8047d1ffcdb (diff)
downloadop-kernel-dev-9617d95e6e9ffd883cf90a89724fe60d7ab22f9a.zip
op-kernel-dev-9617d95e6e9ffd883cf90a89724fe60d7ab22f9a.tar.gz
[PATCH] mm: rmap optimisation
Optimise rmap functions by minimising atomic operations when we know there will be no concurrent modifications. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index e249088..d7ca7de 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1498,7 +1498,7 @@ gotten:
update_mmu_cache(vma, address, entry);
lazy_mmu_prot_update(entry);
lru_cache_add_active(new_page);
- page_add_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address);
/* Free the old page.. */
new_page = old_page;
@@ -1978,7 +1978,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
inc_mm_counter(mm, anon_rss);
lru_cache_add_active(page);
SetPageReferenced(page);
- page_add_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address);
} else {
/* Map the ZERO_PAGE - vm_page_prot is readonly */
page = ZERO_PAGE(address);
@@ -2109,7 +2109,7 @@ retry:
if (anon) {
inc_mm_counter(mm, anon_rss);
lru_cache_add_active(new_page);
- page_add_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address);
} else {
inc_mm_counter(mm, file_rss);
page_add_file_rmap(new_page);
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