lkml.org 
[lkml]   [2009]   [Jan]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch 35/40] mm: write_cache_pages more terminate quickly
2.6.27-stable review patch.  If anyone has any objections, please let us know.

------------------

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);


\
 
 \ /
  Last update: 2009-01-23 07:33    [W:0.101 / U:1.436 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site