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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 /fs/buffer.c | |
| parent | 610d18f4128ebbd88845d0fc60cce67b49af881e (diff) | |
| download | linux-1cf6e7d83bf334cc5916137862c920a97aabc018.tar.gz linux-1cf6e7d83bf334cc5916137862c920a97aabc018.tar.bz2 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 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 665d446b25bc..ff4d1cdd779b 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -777,6 +777,7 @@ static int __set_page_dirty(struct page *page, __inc_zone_page_state(page, NR_FILE_DIRTY); __inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); + task_dirty_inc(current); task_io_account_write(PAGE_CACHE_SIZE); } radix_tree_tag_set(&mapping->page_tree, |