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ocfs2: use system_wq instead of ocfs2_quota_wq

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ocfs2_quota_wq is not depended upon during memory reclaim and, with
cmwq, there's no reason to use a dedicated workqueue.  Drop
ocfs2_quota_wq and use system_wq instead.  dqi_sync_work is already
sync canceled on quota disable and no further synchronization is
necessary.

This change makes ocfs2_quota_setup/shutdown() noops.  Both functions
removed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Tejun Heo 2011-02-01 11:42:42 +01:00
parent fd89d5f203
commit 316873c958
3 changed files with 4 additions and 33 deletions
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3
fs/ocfs2/quota.h
View file

@ -114,7 +114,4 @@ int ocfs2_local_write_dquot(struct dquot *dquot);
extern const struct dquot_operations ocfs2_quota_operations;
extern struct quota_format_type ocfs2_quota_format;
int ocfs2_quota_setup(void);
void ocfs2_quota_shutdown(void);
#endif /* _OCFS2_QUOTA_H */

27
fs/ocfs2/quota_global.c
View file

@ -63,8 +63,6 @@
* write to gf
*/
static struct workqueue_struct *ocfs2_quota_wq = NULL;
static void qsync_work_fn(struct work_struct *work);
static void ocfs2_global_disk2memdqb(struct dquot *dquot, void *dp)
@ -400,8 +398,8 @@ int ocfs2_global_read_info(struct super_block *sb, int type)
OCFS2_QBLK_RESERVED_SPACE;
oinfo->dqi_gi.dqi_qtree_depth = qtree_depth(&oinfo->dqi_gi);
INIT_DELAYED_WORK(&oinfo->dqi_sync_work, qsync_work_fn);
queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
msecs_to_jiffies(oinfo->dqi_syncms));
schedule_delayed_work(&oinfo->dqi_sync_work,
msecs_to_jiffies(oinfo->dqi_syncms));
out_err:
mlog_exit(status);
@ -635,8 +633,8 @@ static void qsync_work_fn(struct work_struct *work)
struct super_block *sb = oinfo->dqi_gqinode->i_sb;
dquot_scan_active(sb, ocfs2_sync_dquot_helper, oinfo->dqi_type);
queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
msecs_to_jiffies(oinfo->dqi_syncms));
schedule_delayed_work(&oinfo->dqi_sync_work,
msecs_to_jiffies(oinfo->dqi_syncms));
}
/*
@ -923,20 +921,3 @@ const struct dquot_operations ocfs2_quota_operations = {
.alloc_dquot = ocfs2_alloc_dquot,
.destroy_dquot = ocfs2_destroy_dquot,
};
int ocfs2_quota_setup(void)
{
ocfs2_quota_wq = create_workqueue("o2quot");
if (!ocfs2_quota_wq)
return -ENOMEM;
return 0;
}
void ocfs2_quota_shutdown(void)
{
if (ocfs2_quota_wq) {
flush_workqueue(ocfs2_quota_wq);
destroy_workqueue(ocfs2_quota_wq);
ocfs2_quota_wq = NULL;
}
}

7
fs/ocfs2/super.c
View file

@ -1645,16 +1645,11 @@ static int __init ocfs2_init(void)
mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n");
}
status = ocfs2_quota_setup();
if (status)
goto leave;
ocfs2_set_locking_protocol();
status = register_quota_format(&ocfs2_quota_format);
leave:
if (status < 0) {
ocfs2_quota_shutdown();
ocfs2_free_mem_caches();
exit_ocfs2_uptodate_cache();
}
@ -1671,8 +1666,6 @@ static void __exit ocfs2_exit(void)
{
mlog_entry_void();
ocfs2_quota_shutdown();
if (ocfs2_wq) {
flush_workqueue(ocfs2_wq);
destroy_workqueue(ocfs2_wq);