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| author | Kiyoshi Ueda <k-ueda@ct.jp.nec.com> | 2010-03-06 02:29:59 +0000 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2010-03-06 02:29:59 +0000 |
| commit | fce323dd68e13354071538c765b062859e6f8286 (patch) | |
| tree | a6850c35a5d4954a81ef922eeaed2ee4d69e4b89 | |
| parent | c53a381efbe3d0e0629121b3f0d2b62a0e167791 (diff) | |
| download | linux-3.10-fce323dd68e13354071538c765b062859e6f8286.tar.gz linux-3.10-fce323dd68e13354071538c765b062859e6f8286.tar.bz2 linux-3.10-fce323dd68e13354071538c765b062859e6f8286.zip | |
dm mpath: avoid storing private suspended state
'suspended' flag in struct multipath was introduced to check whether
the multipath target is in suspended state, but the same check is
done through dm_suspended() now, so remove the flag and related code.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| -rw-r--r-- | drivers/md/dm-mpath.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index ecada419809..8fa0c955eeb 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -95,8 +95,6 @@ struct multipath { mempool_t *mpio_pool; struct mutex work_mutex; - - unsigned suspended; /* Don't create new I/O internally when set. */ }; /* @@ -1278,7 +1276,6 @@ static void multipath_postsuspend(struct dm_target *ti) struct multipath *m = ti->private; mutex_lock(&m->work_mutex); - m->suspended = 1; flush_multipath_work(); mutex_unlock(&m->work_mutex); } @@ -1291,10 +1288,6 @@ static void multipath_resume(struct dm_target *ti) struct multipath *m = (struct multipath *) ti->private; unsigned long flags; - mutex_lock(&m->work_mutex); - m->suspended = 0; - mutex_unlock(&m->work_mutex); - spin_lock_irqsave(&m->lock, flags); m->queue_if_no_path = m->saved_queue_if_no_path; spin_unlock_irqrestore(&m->lock, flags); @@ -1430,11 +1423,6 @@ static int multipath_message(struct dm_target *ti, unsigned argc, char **argv) mutex_lock(&m->work_mutex); - if (m->suspended) { - r = -EBUSY; - goto out; - } - if (dm_suspended(ti)) { r = -EBUSY; goto out; |