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path: root/drivers/md/dm-mpath.c
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Diffstat (limited to 'drivers/md/dm-mpath.c')
-rw-r--r--drivers/md/dm-mpath.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 96aedaac2c64..11f273d2f018 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -632,6 +632,10 @@ static void process_queued_bios(struct work_struct *work)
case DM_MAPIO_REMAPPED:
generic_make_request(bio);
break;
+ case 0:
+ break;
+ default:
+ WARN_ONCE(true, "__multipath_map_bio() returned %d\n", r);
}
}
blk_finish_plug(&plug);
@@ -698,7 +702,7 @@ static int parse_path_selector(struct dm_arg_set *as, struct priority_group *pg,
struct path_selector_type *pst;
unsigned ps_argc;
- static struct dm_arg _args[] = {
+ static const struct dm_arg _args[] = {
{0, 1024, "invalid number of path selector args"},
};
@@ -822,7 +826,7 @@ retain:
static struct priority_group *parse_priority_group(struct dm_arg_set *as,
struct multipath *m)
{
- static struct dm_arg _args[] = {
+ static const struct dm_arg _args[] = {
{1, 1024, "invalid number of paths"},
{0, 1024, "invalid number of selector args"}
};
@@ -898,7 +902,7 @@ static int parse_hw_handler(struct dm_arg_set *as, struct multipath *m)
int ret;
struct dm_target *ti = m->ti;
- static struct dm_arg _args[] = {
+ static const struct dm_arg _args[] = {
{0, 1024, "invalid number of hardware handler args"},
};
@@ -950,7 +954,7 @@ static int parse_features(struct dm_arg_set *as, struct multipath *m)
struct dm_target *ti = m->ti;
const char *arg_name;
- static struct dm_arg _args[] = {
+ static const struct dm_arg _args[] = {
{0, 8, "invalid number of feature args"},
{1, 50, "pg_init_retries must be between 1 and 50"},
{0, 60000, "pg_init_delay_msecs must be between 0 and 60000"},
@@ -1019,7 +1023,7 @@ static int parse_features(struct dm_arg_set *as, struct multipath *m)
static int multipath_ctr(struct dm_target *ti, unsigned argc, char **argv)
{
/* target arguments */
- static struct dm_arg _args[] = {
+ static const struct dm_arg _args[] = {
{0, 1024, "invalid number of priority groups"},
{0, 1024, "invalid initial priority group number"},
};
@@ -1379,6 +1383,7 @@ static void pg_init_done(void *data, int errors)
case SCSI_DH_RETRY:
/* Wait before retrying. */
delay_retry = 1;
+ /* fall through */
case SCSI_DH_IMM_RETRY:
case SCSI_DH_RES_TEMP_UNAVAIL:
if (pg_init_limit_reached(m, pgpath))