提交 17f4ff45 编写于 作者: H Hannes Reinecke 提交者: Mike Snitzer

dm mpath: do not call pg_init when it is already running

This patch moves condition checks as a preparation of following
patches and has no effect on behaviour.
process_queued_ios() is the only caller of __pg_init_all_paths()
and 2 condition checks are moved from outside to inside without
side effects.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
Reviewed-by: NJun'ichi Nomura <j-nomura@ce.jp.nec.com>
上级 9cdb8520
......@@ -261,6 +261,9 @@ static void __pg_init_all_paths(struct multipath *m)
struct pgpath *pgpath;
unsigned long pg_init_delay = 0;
if (m->pg_init_in_progress || m->pg_init_disabled)
return;
m->pg_init_count++;
m->pg_init_required = 0;
if (m->pg_init_delay_retry)
......@@ -501,8 +504,7 @@ static void process_queued_ios(struct work_struct *work)
(!pgpath && !m->queue_if_no_path))
must_queue = 0;
if (m->pg_init_required && !m->pg_init_in_progress && pgpath &&
!m->pg_init_disabled)
if (pgpath && m->pg_init_required)
__pg_init_all_paths(m);
spin_unlock_irqrestore(&m->lock, flags);
......
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