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authorKent Overstreet <kmo@daterainc.com>2014-01-23 01:44:55 -0800
committerKent Overstreet <kmo@daterainc.com>2014-03-18 12:23:35 -0700
commit56b30770b27d54d68ad51eccc6d888282b568cee (patch)
tree21e2a98e8eaa0c11933513cdbdb1d65d6e401ad3 /drivers/md
parent2a285686c109816ba71a00b9278262cf02648258 (diff)
downloadlinux-56b30770b27d54d68ad51eccc6d888282b568cee.tar.bz2
bcache: Kill btree_io_wq
With the locking rework in the last patch, this shouldn't be needed anymore - btree_node_write_work() only takes b->write_lock which is never held for very long. Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/bcache/bcache.h2
-rw-r--r--drivers/md/bcache/btree.c22
-rw-r--r--drivers/md/bcache/super.c2
3 files changed, 2 insertions, 24 deletions
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 014236e411d8..15d26236caf9 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -962,7 +962,5 @@ void bch_debug_exit(void);
int bch_debug_init(struct kobject *);
void bch_request_exit(void);
int bch_request_init(void);
-void bch_btree_exit(void);
-int bch_btree_init(void);
#endif /* _BCACHE_H */
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 01b1b7e23cf2..beb32551da78 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -93,8 +93,6 @@
#define PTR_HASH(c, k) \
(((k)->ptr[0] >> c->bucket_bits) | PTR_GEN(k, 0))
-static struct workqueue_struct *btree_io_wq;
-
#define insert_lock(s, b) ((b)->level <= (s)->lock)
/*
@@ -362,8 +360,7 @@ static void __btree_node_write_done(struct closure *cl)
btree_complete_write(b, w);
if (btree_node_dirty(b))
- queue_delayed_work(btree_io_wq, &b->work,
- msecs_to_jiffies(30000));
+ schedule_delayed_work(&b->work, 30 * HZ);
closure_return_with_destructor(cl, btree_node_write_unlock);
}
@@ -535,7 +532,7 @@ static void bch_btree_leaf_dirty(struct btree *b, atomic_t *journal_ref)
BUG_ON(!i->keys);
if (!btree_node_dirty(b))
- queue_delayed_work(btree_io_wq, &b->work, 30 * HZ);
+ schedule_delayed_work(&b->work, 30 * HZ);
set_btree_node_dirty(b);
@@ -2446,18 +2443,3 @@ void bch_keybuf_init(struct keybuf *buf)
spin_lock_init(&buf->lock);
array_allocator_init(&buf->freelist);
}
-
-void bch_btree_exit(void)
-{
- if (btree_io_wq)
- destroy_workqueue(btree_io_wq);
-}
-
-int __init bch_btree_init(void)
-{
- btree_io_wq = create_singlethread_workqueue("bch_btree_io");
- if (!btree_io_wq)
- return -ENOMEM;
-
- return 0;
-}
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 9ded06434e11..307fe378ea43 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -2072,7 +2072,6 @@ static void bcache_exit(void)
{
bch_debug_exit();
bch_request_exit();
- bch_btree_exit();
if (bcache_kobj)
kobject_put(bcache_kobj);
if (bcache_wq)
@@ -2102,7 +2101,6 @@ static int __init bcache_init(void)
if (!(bcache_wq = create_workqueue("bcache")) ||
!(bcache_kobj = kobject_create_and_add("bcache", fs_kobj)) ||
sysfs_create_files(bcache_kobj, files) ||
- bch_btree_init() ||
bch_request_init() ||
bch_debug_init(bcache_kobj))
goto err;