Commit 82fd1a9a authored Jan 06, 2009 by Andrew Morton Committed by Linus Torvalds Jan 06, 2009

mm: write_cache_pages more terminate quickly

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>

parent d5482cdf

mm/page-writeback.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -983,12 +983,15 @@ int write_cache_pages(struct address_space *mapping,

		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);