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| author | Hugh Dickins <hugh@veritas.com> | 2009-01-06 14:39:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:02 -0800 |
| commit | b5934c531849ff4a51ce0f290141efe564290e40 (patch) | |
| tree | 0c741a5bd6178db11f1147875f59e7a1a9d1754d /mm/memory.c | |
| parent | 51726b1222863852c46ca21ed0115b85d1edfd89 (diff) | |
| download | lwn-b5934c531849ff4a51ce0f290141efe564290e40.tar.gz lwn-b5934c531849ff4a51ce0f290141efe564290e40.zip | |
mm: add_active_or_unevictable into rmap
lru_cache_add_active_or_unevictable() and page_add_new_anon_rmap() always
appear together. Save some symbol table space and some jumping around by
removing lru_cache_add_active_or_unevictable(), folding its code into
page_add_new_anon_rmap(): like how we add file pages to lru just after
adding them to page cache.
Remove the nearby "TODO: is this safe?" comments (yes, it is safe), and
change page_add_new_anon_rmap()'s address BUG_ON to VM_BUG_ON as
originally intended.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/mm/memory.c b/mm/memory.c index b5af358b8b22..a138c50dc39a 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1949,10 +1949,7 @@ gotten: */ ptep_clear_flush_notify(vma, address, page_table); SetPageSwapBacked(new_page); - lru_cache_add_active_or_unevictable(new_page, vma); page_add_new_anon_rmap(new_page, vma, address); - -//TODO: is this safe? do_anonymous_page() does it this way. set_pte_at(mm, address, page_table, entry); update_mmu_cache(vma, address, entry); if (old_page) { @@ -2448,7 +2445,6 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, goto release; inc_mm_counter(mm, anon_rss); SetPageSwapBacked(page); - lru_cache_add_active_or_unevictable(page, vma); page_add_new_anon_rmap(page, vma, address); set_pte_at(mm, address, page_table, entry); @@ -2597,7 +2593,6 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (anon) { inc_mm_counter(mm, anon_rss); SetPageSwapBacked(page); - lru_cache_add_active_or_unevictable(page, vma); page_add_new_anon_rmap(page, vma, address); } else { inc_mm_counter(mm, file_rss); @@ -2607,7 +2602,6 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, get_page(dirty_page); } } -//TODO: is this safe? do_anonymous_page() does it this way. set_pte_at(mm, address, page_table, entry); /* no need to invalidate: a not-present page won't be cached */ |