aboutsummaryrefslogtreecommitdiffstats
path: root/fs/gfs2/super.c
diff options
context:
space:
mode:
authorSteven Whitehouse <swhiteho@redhat.com>2011-03-30 11:33:25 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2011-04-20 03:59:48 -0400
commit29687a2ac8dfcd5363e515ea715ec226aef8c26b (patch)
treea9bb35c110396c9c2a563c9442690cfb3368c8a8 /fs/gfs2/super.c
parent5ac048bb7ea6e87b06504b999017cfa1f38f4092 (diff)
GFS2: Alter point of entry to glock lru list for glocks with an address_space
Rather than allowing the glocks to be scheduled for possible reclaim as soon as they have exited the journal, this patch delays their entry to the list until the glocks in question are no longer in use. This means that we will rely on the vm for writeback of all dirty data and metadata from now on. When glocks are added to the lru list they should be freeable much faster since all the I/O required to free them should have already been completed. This should lead to much better I/O patterns under low memory conditions. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/super.c')
-rw-r--r--fs/gfs2/super.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index d827b934cbd3..b62c8427672c 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1401,6 +1401,7 @@ out:
1401 end_writeback(inode); 1401 end_writeback(inode);
1402 1402
1403 ip->i_gl->gl_object = NULL; 1403 ip->i_gl->gl_object = NULL;
1404 gfs2_glock_add_to_lru(ip->i_gl);
1404 gfs2_glock_put(ip->i_gl); 1405 gfs2_glock_put(ip->i_gl);
1405 ip->i_gl = NULL; 1406 ip->i_gl = NULL;
1406 if (ip->i_iopen_gh.gh_gl) { 1407 if (ip->i_iopen_gh.gh_gl) {