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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.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Wu Fengguang 2009-11-18 18:09:41 +08:00 committed by Steven Whitehouse
parent 9ae3c6de69
commit c29cd9004e
1 changed files with 0 additions and 12 deletions
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12
fs/gfs2/aops.c
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@ -269,7 +269,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
pgoff_t end_index = i_size >> PAGE_CACHE_SHIFT;
unsigned offset = i_size & (PAGE_CACHE_SIZE-1);
unsigned nrblocks = nr_pages * (PAGE_CACHE_SIZE/inode->i_sb->s_blocksize);
struct backing_dev_info *bdi = mapping->backing_dev_info;
int i;
int ret;
@ -313,11 +312,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
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;
@ -338,7 +332,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
static int gfs2_write_cache_jdata(struct address_space *mapping,
struct writeback_control *wbc)
{
struct backing_dev_info *bdi = mapping->backing_dev_info;
int ret = 0;
int done = 0;
struct pagevec pvec;
@ -348,11 +341,6 @@ static int gfs2_write_cache_jdata(struct address_space *mapping,
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 */