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dm mpath: avoid storing private suspended state

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'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>
This commit is contained in:
Kiyoshi Ueda 2010-03-06 02:29:59 +00:00 committed by Alasdair G Kergon
parent c53a381efb
commit fce323dd68
1 changed files with 0 additions and 12 deletions
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12
drivers/md/dm-mpath.c
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@ -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;