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Subject[PATCH 06/12] writeback: remove unused nonblocking and congestion checks (gfs2)
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: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
fs/gfs2/aops.c | 10 ----------
1 file changed, 10 deletions(-)
--- linux.orig/fs/gfs2/aops.c 2009-11-06 09:22:35.000000000 +0800
+++ linux/fs/gfs2/aops.c 2009-11-06 09:52:15.000000000 +0800
@@ -313,11 +313,6 @@ static int gfs2_write_jdata_pagevec(stru

if (ret || (--(wbc->nr_to_write) <= 0))
ret = 1;
- if (wbc->nonblocking && bdi_write_congested(bdi)) {
- wbc->encountered_congestion = 1;
- ret = 1;
- }
-
}
gfs2_trans_end(sdp);
return ret;
@@ -348,11 +343,6 @@ static int gfs2_write_cache_jdata(struct
int scanned = 0;
int range_whole = 0;

- if (wbc->nonblocking && bdi_write_congested(bdi)) {
- wbc->encountered_congestion = 1;
- return 0;
- }
-
pagevec_init(&pvec, 0);
if (wbc->range_cyclic) {
index = mapping->writeback_index; /* Start from prev offset */



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