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authorWu Fengguang <fengguang.wu@gmail.com>2009-12-03 13:54:25 +0100
committerJens Axboe <jens.axboe@oracle.com>2009-12-03 13:54:25 +0100
commit0d99519efef15fd0cf84a849492c7b1deee1e4b7 (patch)
treed0f9d922ef73f6b9c4529826878f3cc5567848fd /drivers
parentb17621fed6aa039387e35f9b4d34d98f213e5673 (diff)
writeback: remove unused nonblocking and congestion checks
- no one is calling wb_writeback and write_cache_pages with wbc.nonblocking=1 any more - lumpy pageout will want to do nonblocking writeback without the congestion wait So remove the congestion checks as suggested by Chris. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alex Elder <aelder@sgi.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/pohmelfs/inode.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/staging/pohmelfs/inode.c b/drivers/staging/pohmelfs/inode.c
index c94de313922..f69b7783027 100644
--- a/drivers/staging/pohmelfs/inode.c
+++ b/drivers/staging/pohmelfs/inode.c
@@ -143,7 +143,6 @@ static int pohmelfs_writepages(struct address_space *mapping, struct writeback_c
struct inode *inode = mapping->host;
struct pohmelfs_inode *pi = POHMELFS_I(inode);
struct pohmelfs_sb *psb = POHMELFS_SB(inode->i_sb);
- struct backing_dev_info *bdi = mapping->backing_dev_info;
int err = 0;
int done = 0;
int nr_pages;
@@ -152,11 +151,6 @@ static int pohmelfs_writepages(struct address_space *mapping, struct writeback_c
int scanned = 0;
int range_whole = 0;
- if (wbc->nonblocking && bdi_write_congested(bdi)) {
- wbc->encountered_congestion = 1;
- return 0;
- }
-
if (wbc->range_cyclic) {
index = mapping->writeback_index; /* Start from prev offset */
end = -1;
@@ -248,10 +242,6 @@ retry:
if (wbc->nr_to_write <= 0)
done = 1;
- if (wbc->nonblocking && bdi_write_congested(bdi)) {
- wbc->encountered_congestion = 1;
- done = 1;
- }
continue;
out_continue: