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gfs2: Move delete workqueue into super block

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Move the global delete workqueue into struct gfs2_sbd so that we can
flush / drain it without interfering with other filesystems.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2022-12-06 16:04:22 +01:00
parent 3056dc4655
commit 0247f4e959
5 changed files with 22 additions and 16 deletions
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21
fs/gfs2/glock.c
View File

@ -67,7 +67,6 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state,
static struct dentry *gfs2_root;
static struct workqueue_struct *glock_workqueue;
struct workqueue_struct *gfs2_delete_workqueue;
static LIST_HEAD(lru_list);
static atomic_t lru_count = ATOMIC_INIT(0);
static DEFINE_SPINLOCK(lru_lock);
@ -2060,7 +2059,9 @@ static void glock_hash_walk(glock_examiner examiner, const struct gfs2_sbd *sdp)
bool gfs2_queue_delete_work(struct gfs2_glock *gl, unsigned long delay)
{
return queue_delayed_work(gfs2_delete_workqueue,
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
return queue_delayed_work(sdp->sd_delete_wq,
&gl->gl_delete, delay);
}
@ -2073,8 +2074,10 @@ void gfs2_cancel_delete_work(struct gfs2_glock *gl)
static void flush_delete_work(struct gfs2_glock *gl)
{
if (gl->gl_name.ln_type == LM_TYPE_IOPEN) {
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
if (cancel_delayed_work(&gl->gl_delete)) {
queue_delayed_work(gfs2_delete_workqueue,
queue_delayed_work(sdp->sd_delete_wq,
&gl->gl_delete, 0);
}
}
@ -2083,7 +2086,7 @@ static void flush_delete_work(struct gfs2_glock *gl)
void gfs2_flush_delete_work(struct gfs2_sbd *sdp)
{
glock_hash_walk(flush_delete_work, sdp);
flush_workqueue(gfs2_delete_workqueue);
flush_workqueue(sdp->sd_delete_wq);
}
/**
@ -2444,18 +2447,9 @@ int __init gfs2_glock_init(void)
rhashtable_destroy(&gl_hash_table);
return -ENOMEM;
}
gfs2_delete_workqueue = alloc_workqueue("delete_workqueue",
WQ_MEM_RECLAIM | WQ_FREEZABLE,
0);
if (!gfs2_delete_workqueue) {
destroy_workqueue(glock_workqueue);
rhashtable_destroy(&gl_hash_table);
return -ENOMEM;
}
ret = register_shrinker(&glock_shrinker, "gfs2-glock");
if (ret) {
destroy_workqueue(gfs2_delete_workqueue);
destroy_workqueue(glock_workqueue);
rhashtable_destroy(&gl_hash_table);
return ret;
@ -2472,7 +2466,6 @@ void gfs2_glock_exit(void)
unregister_shrinker(&glock_shrinker);
rhashtable_destroy(&gl_hash_table);
destroy_workqueue(glock_workqueue);
destroy_workqueue(gfs2_delete_workqueue);
}
static void gfs2_glock_iter_next(struct gfs2_glock_iter *gi, loff_t n)

1
fs/gfs2/glock.h
View File

@ -144,7 +144,6 @@ struct gfs2_glock_aspace {
struct address_space mapping;
};
extern struct workqueue_struct *gfs2_delete_workqueue;
static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
{
struct gfs2_holder *gh;

4
fs/gfs2/incore.h
View File

@ -770,6 +770,10 @@ struct gfs2_sbd {
struct completion sd_journal_ready;
/* Workqueue stuff */
struct workqueue_struct *sd_delete_wq;
/* Daemon stuff */
struct task_struct *sd_logd_process;

10
fs/gfs2/ops_fstype.c
View File

@ -1197,9 +1197,15 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
snprintf(sdp->sd_fsname, sizeof(sdp->sd_fsname), "%s", sdp->sd_table_name);
sdp->sd_delete_wq = alloc_workqueue("gfs2-delete/%s",
WQ_MEM_RECLAIM | WQ_FREEZABLE, 0, sdp->sd_fsname);
error = -ENOMEM;
if (!sdp->sd_delete_wq)
goto fail_free;
error = gfs2_sys_fs_add(sdp);
if (error)
goto fail_free;
goto fail_delete_wq;
gfs2_create_debugfs_file(sdp);
@ -1309,6 +1315,8 @@ fail_lm:
fail_debug:
gfs2_delete_debugfs_file(sdp);
gfs2_sys_fs_del(sdp);
fail_delete_wq:
destroy_workqueue(sdp->sd_delete_wq);
fail_free:
free_sbd(sdp);
sb->s_fs_info = NULL;

2
fs/gfs2/super.c
View File

@ -630,6 +630,8 @@ restart:
/* Unmount the locking protocol */
gfs2_lm_unmount(sdp);
destroy_workqueue(sdp->sd_delete_wq);
/* At this point, we're through participating in the lockspace */
gfs2_sys_fs_del(sdp);
free_sbd(sdp);