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authorOlof Johansson <olof@lixom.net>2013-02-10 04:41:37 +0400
committerOlof Johansson <olof@lixom.net>2013-02-10 04:41:37 +0400
commit94c16ea6ea75f8f5de92d10a647155ccf0d05436 (patch)
tree012d247bf686e1c49ef3ad0048b94de4970c066b /drivers/md/dm.c
parentcf55f672c325f234d96911571a775b2e7d9cf284 (diff)
parent88b62b915b0b7e25870eb0604ed9a92ba4bfc9f7 (diff)
downloadlinux-94c16ea6ea75f8f5de92d10a647155ccf0d05436.tar.xz
Merge tag 'v3.8-rc6' into next/cleanup
Linux 3.8-rc6
Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r--drivers/md/dm.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index c72e4d5a9617..314a0e2faf79 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1188,6 +1188,7 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
{
struct dm_target *ti;
sector_t len;
+ unsigned num_requests;
do {
ti = dm_table_find_target(ci->map, ci->sector);
@@ -1200,7 +1201,8 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
* reconfiguration might also have changed that since the
* check was performed.
*/
- if (!get_num_requests || !get_num_requests(ti))
+ num_requests = get_num_requests ? get_num_requests(ti) : 0;
+ if (!num_requests)
return -EOPNOTSUPP;
if (is_split_required && !is_split_required(ti))
@@ -1208,7 +1210,7 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
else
len = min(ci->sector_count, max_io_len(ci->sector, ti));
- __issue_target_requests(ci, ti, ti->num_discard_requests, len);
+ __issue_target_requests(ci, ti, num_requests, len);
ci->sector += len;
} while (ci->sector_count -= len);