Stop the loop of iterating bh if we have confirmed page
has dirty and writeback buffers.
Signed-off-by: Gu Zheng <guz.f...@cn.fujitsu.com>
---
fs/buffer.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index 6024877..519cc5c 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -112,7 +112,7 @@ void buffer_check_dirty_writeback(struct page *page,
*dirty = true;
bh = bh->b_this_page;
- } while (bh != head);
+ } while ((bh != head) && !(*writeback && *dirty));
}
EXPORT_SYMBOL(buffer_check_dirty_writeback);
--
1.7.7
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
