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SubjectRe: [PATCH 03/12] writeback: remove unused nonblocking and congestion checks (pohmelfs)
Hi Evgeniy,

Will you pick up this updated patch? It also removes the unused bdi.

Thanks,
Fengguang
---
writeback: remove unused nonblocking and congestion checks (pohmelfs)

No one is calling wb_writeback and write_cache_pages with
wbc.nonblocking=1 any more. And lumpy pageout will want to do
nonblocking writeback without the congestion wait.

CC: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
drivers/staging/pohmelfs/inode.c | 10 ----------
1 file changed, 10 deletions(-)

--- linux.orig/drivers/staging/pohmelfs/inode.c 2009-11-18 16:39:36.000000000 +0800
+++ linux/drivers/staging/pohmelfs/inode.c 2009-11-19 16:10:29.000000000 +0800
@@ -143,7 +143,6 @@ static int pohmelfs_writepages(struct ad
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 ad
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:

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