diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-01 12:04:22 +1100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-01 12:04:22 +1100 |
| commit | cc6c954a076c5df7e0ac8d5e4ffa8b4f5572ae1d (patch) | |
| tree | 5a53c5b15edf849a9ea390ca90342d0ffac99fdc /drivers/md/dm.c | |
| parent | cf5425bfcd6909f9831a00bc06ccb9a5b163766a (diff) | |
| parent | fe7af2d3babefabd96a39e8b0d58ede88f3c7993 (diff) | |
Merge tag 'dm-3.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm
Pull more device-mapper fixes from Alasdair G Kergon:
"A fix for stacked dm thin devices and a fix for the new dm WRITE SAME
support."
* tag 'dm-3.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
dm: fix write same requests counting
dm thin: fix queue limits stacking
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index c72e4d5a961..314a0e2faf7 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); |