diff options
| author | Steven Whitehouse <swhiteho@redhat.com> | 2013-11-04 10:15:08 +0000 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2013-11-04 11:17:49 +0000 |
| commit | 2147dbfd059eb7fefcfd5934f74f25f0693d4a1f (patch) | |
| tree | 8cc89a827bcc48f529698bef65eb61216562425a /fs/gfs2/main.c | |
| parent | 7d80823e1d83e35977d77ae201bf63af3317ad0a (diff) | |
GFS2: Use generic list_lru for quota
By using the generic list_lru code, we can now separate the
per sb quota list locking from the lru locking. The lru
lock is made into the inner-most lock.
As a result of this new lock order, we may occasionally see
items on the per-sb quota list which are "dead" so that the
two places where we traverse that list are updated to take
account of that.
As a result of this patch, the gfs2 quota shrinker is now
NUMA zone aware, and we are also laying the foundations for
further improvments in due course.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Abhijith Das <adas@redhat.com>
Tested-by: Abhijith Das <adas@redhat.com>
Cc: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/gfs2/main.c')
| -rw-r--r-- | fs/gfs2/main.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c index 351586e24e30..0650db2541ef 100644 --- a/fs/gfs2/main.c +++ b/fs/gfs2/main.c @@ -31,12 +31,6 @@ struct workqueue_struct *gfs2_control_wq; -static struct shrinker qd_shrinker = { - .count_objects = gfs2_qd_shrink_count, - .scan_objects = gfs2_qd_shrink_scan, - .seeks = DEFAULT_SEEKS, -}; - static void gfs2_init_inode_once(void *foo) { struct gfs2_inode *ip = foo; @@ -87,6 +81,10 @@ static int __init init_gfs2_fs(void) if (error) return error; + error = list_lru_init(&gfs2_qd_lru); + if (error) + goto fail_lru; + error = gfs2_glock_init(); if (error) goto fail; @@ -139,7 +137,7 @@ static int __init init_gfs2_fs(void) if (!gfs2_rsrv_cachep) goto fail; - register_shrinker(&qd_shrinker); + register_shrinker(&gfs2_qd_shrinker); error = register_filesystem(&gfs2_fs_type); if (error) @@ -179,7 +177,9 @@ fail_wq: fail_unregister: unregister_filesystem(&gfs2_fs_type); fail: - unregister_shrinker(&qd_shrinker); + list_lru_destroy(&gfs2_qd_lru); +fail_lru: + unregister_shrinker(&gfs2_qd_shrinker); gfs2_glock_exit(); if (gfs2_rsrv_cachep) @@ -214,13 +214,14 @@ fail: static void __exit exit_gfs2_fs(void) { - unregister_shrinker(&qd_shrinker); + unregister_shrinker(&gfs2_qd_shrinker); gfs2_glock_exit(); gfs2_unregister_debugfs(); unregister_filesystem(&gfs2_fs_type); unregister_filesystem(&gfs2meta_fs_type); destroy_workqueue(gfs_recovery_wq); destroy_workqueue(gfs2_control_wq); + list_lru_destroy(&gfs2_qd_lru); rcu_barrier(); |