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| author | Nick Piggin <npiggin@suse.de> | 2009-02-18 14:48:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-18 15:37:54 -0800 |
| commit | 1cf6e7d83bf334cc5916137862c920a97aabc018 (patch) | |
| tree | 6bdbc4a98e9b332919beaeba0649797fff544795 /include | |
| parent | 610d18f4128ebbd88845d0fc60cce67b49af881e (diff) | |
| download | blackbird-op-linux-1cf6e7d83bf334cc5916137862c920a97aabc018.tar.gz blackbird-op-linux-1cf6e7d83bf334cc5916137862c920a97aabc018.zip | |
mm: task dirty accounting fix
YAMAMOTO-san noticed that task_dirty_inc doesn't seem to be called properly for
cases where set_page_dirty is not used to dirty a page (eg. mark_buffer_dirty).
Additionally, there is some inconsistency about when task_dirty_inc is
called. It is used for dirty balancing, however it even gets called for
__set_page_dirty_no_writeback.
So rather than increment it in a set_page_dirty wrapper, move it down to
exactly where the dirty page accounting stats are incremented.
Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 7dc04ff5ab89..10074212a35b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1159,6 +1159,7 @@ extern int filemap_fault(struct vm_area_struct *, struct vm_fault *); /* mm/page-writeback.c */ int write_one_page(struct page *page, int wait); +void task_dirty_inc(struct task_struct *tsk); /* readahead.c */ #define VM_MAX_READAHEAD 128 /* kbytes */ |
