Messages in this thread Patch in this message | | | Date | Thu, 22 Jan 2009 22:14:47 -0800 | From | Greg KH <> | Subject | [patch 35/40] mm: write_cache_pages more terminate quickly |
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2.6.27-stable review patch. If anyone has any objections, please let us know.
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From: Andrew Morton <akpm@linux-foundation.org>
commit 82fd1a9a8ced9607312b54859572bcc6211e8919 upstream.
Now that we have the early-termination logic in place, it makes sense to bail out early in all other cases where done is set to 1.
Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- mm/page-writeback.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -987,12 +987,15 @@ continue_unlock: if (wbc->sync_mode == WB_SYNC_NONE) { wbc->nr_to_write--; - if (wbc->nr_to_write <= 0) + if (wbc->nr_to_write <= 0) { done = 1; + break; + } } if (wbc->nonblocking && bdi_write_congested(bdi)) { wbc->encountered_congestion = 1; done = 1; + break; } } pagevec_release(&pvec);
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