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authorWu Fengguang <fengguang.wu@intel.com>2009-11-18 18:09:41 +0800
committerSteven Whitehouse <swhiteho@redhat.com>2009-12-03 11:59:17 +0000
commitc29cd9004e72acb5a6cb8caf08508f1c5edee686 (patch)
treef2cf39f10f99b551b7feddf759ab7775d6db8b9a /fs/gfs2
parent9ae3c6de6981a1e8765b5d029f94555fc0f0fea0 (diff)
downloadop-kernel-dev-c29cd9004e72acb5a6cb8caf08508f1c5edee686.zip
op-kernel-dev-c29cd9004e72acb5a6cb8caf08508f1c5edee686.tar.gz
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>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/aops.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index dce062a..7b8da94 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -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 */
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