aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/md
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-mpath.c11
-rw-r--r--drivers/md/dm.c16
2 files changed, 17 insertions, 10 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index ebfa411d1a7d..3f6fd9d33ba3 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1242,17 +1242,8 @@ static int do_end_io(struct multipath *m, struct request *clone,
1242 if (!error && !clone->errors) 1242 if (!error && !clone->errors)
1243 return 0; /* I/O complete */ 1243 return 0; /* I/O complete */
1244 1244
1245 if (noretry_error(error)) { 1245 if (noretry_error(error))
1246 if ((clone->cmd_flags & REQ_WRITE_SAME) &&
1247 !clone->q->limits.max_write_same_sectors) {
1248 struct queue_limits *limits;
1249
1250 /* device doesn't really support WRITE SAME, disable it */
1251 limits = dm_get_queue_limits(dm_table_get_md(m->ti->table));
1252 limits->max_write_same_sectors = 0;
1253 }
1254 return error; 1246 return error;
1255 }
1256 1247
1257 if (mpio->pgpath) 1248 if (mpio->pgpath)
1258 fail_path(mpio->pgpath); 1249 fail_path(mpio->pgpath);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 97940fc8c302..3234a753a80d 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -755,6 +755,14 @@ static void dec_pending(struct dm_io *io, int error)
755 } 755 }
756} 756}
757 757
758static void disable_write_same(struct mapped_device *md)
759{
760 struct queue_limits *limits = dm_get_queue_limits(md);
761
762 /* device doesn't really support WRITE SAME, disable it */
763 limits->max_write_same_sectors = 0;
764}
765
758static void clone_endio(struct bio *bio, int error) 766static void clone_endio(struct bio *bio, int error)
759{ 767{
760 int r = 0; 768 int r = 0;
@@ -783,6 +791,10 @@ static void clone_endio(struct bio *bio, int error)
783 } 791 }
784 } 792 }
785 793
794 if (unlikely(r == -EREMOTEIO && (bio->bi_rw & REQ_WRITE_SAME) &&
795 !bdev_get_queue(bio->bi_bdev)->limits.max_write_same_sectors))
796 disable_write_same(md);
797
786 free_tio(md, tio); 798 free_tio(md, tio);
787 dec_pending(io, error); 799 dec_pending(io, error);
788} 800}
@@ -977,6 +989,10 @@ static void dm_done(struct request *clone, int error, bool mapped)
977 r = rq_end_io(tio->ti, clone, error, &tio->info); 989 r = rq_end_io(tio->ti, clone, error, &tio->info);
978 } 990 }
979 991
992 if (unlikely(r == -EREMOTEIO && (clone->cmd_flags & REQ_WRITE_SAME) &&
993 !clone->q->limits.max_write_same_sectors))
994 disable_write_same(tio->md);
995
980 if (r <= 0) 996 if (r <= 0)
981 /* The target wants to complete the I/O */ 997 /* The target wants to complete the I/O */
982 dm_end_request(clone, r); 998 dm_end_request(clone, r);