From: Kiyoshi Ueda This patch pulls the pg_init path activation code out of process_queued_ios() into a new function. No functional change. Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Alasdair G Kergon --- drivers/md/dm-mpath.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) Index: linux-2.6.33-rc8/drivers/md/dm-mpath.c =================================================================== --- linux-2.6.33-rc8.orig/drivers/md/dm-mpath.c +++ linux-2.6.33-rc8/drivers/md/dm-mpath.c @@ -235,6 +235,21 @@ static void free_multipath(struct multip * Path selection *-----------------------------------------------*/ +static void __pg_init_all_paths(struct multipath *m) +{ + struct pgpath *pgpath; + + m->pg_init_count++; + m->pg_init_required = 0; + list_for_each_entry(pgpath, &m->current_pg->pgpaths, list) { + /* Skip failed paths */ + if (!pgpath->is_active) + continue; + if (queue_work(kmpath_handlerd, &pgpath->activate_path)) + m->pg_init_in_progress++; + } +} + static void __switch_pg(struct multipath *m, struct pgpath *pgpath) { m->current_pg = pgpath->pg; @@ -439,7 +454,7 @@ static void process_queued_ios(struct wo { struct multipath *m = container_of(work, struct multipath, process_queued_ios); - struct pgpath *pgpath = NULL, *tmp; + struct pgpath *pgpath = NULL; unsigned must_queue = 1; unsigned long flags; @@ -457,17 +472,9 @@ static void process_queued_ios(struct wo (!pgpath && !m->queue_if_no_path)) must_queue = 0; - if (m->pg_init_required && !m->pg_init_in_progress && pgpath) { - m->pg_init_count++; - m->pg_init_required = 0; - list_for_each_entry(tmp, &pgpath->pg->pgpaths, list) { - /* Skip failed paths */ - if (!tmp->is_active) - continue; - if (queue_work(kmpath_handlerd, &tmp->activate_path)) - m->pg_init_in_progress++; - } - } + if (m->pg_init_required && !m->pg_init_in_progress && pgpath) + __pg_init_all_paths(m); + out: spin_unlock_irqrestore(&m->lock, flags); if (!must_queue)