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Subject[PATCH 07/12] writeback: remove unused nonblocking and congestion checks (xfs)
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: Dave Chinner <david@fromorbit.com>
CC: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
fs/xfs/linux-2.6/xfs_aops.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- linux.orig/fs/xfs/linux-2.6/xfs_aops.c 2009-11-06 09:22:35.000000000 +0800
+++ linux/fs/xfs/linux-2.6/xfs_aops.c 2009-11-06 09:52:21.000000000 +0800
@@ -908,12 +908,8 @@ xfs_convert_page(

bdi = inode->i_mapping->backing_dev_info;
wbc->nr_to_write--;
- if (bdi_write_congested(bdi)) {
- wbc->encountered_congestion = 1;
+ if (wbc->nr_to_write <= 0)
done = 1;
- } else if (wbc->nr_to_write <= 0) {
- done = 1;
- }
}
xfs_start_page_writeback(page, !page_dirty, count);
}



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