diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-21 17:08:06 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-21 17:08:06 -0800 |
| commit | b49249d10324d0fd6fb29725c2807dfd80d0edbc (patch) | |
| tree | 9a8fa724e6c9f9283530979c6e32a311c74999d5 /drivers/md/dm-raid.c | |
| parent | 10532b560bacf23766f9c7dc09778b31b198ff45 (diff) | |
| parent | 45e621d45e24ffc4cb2b2935e8438987b860063a (diff) | |
Merge tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm
Pull dm update from Alasdair G Kergon:
"Miscellaneous device-mapper fixes, cleanups and performance
improvements.
Of particular note:
- Disable broken WRITE SAME support in all targets except linear and
striped. Use it when kcopyd is zeroing blocks.
- Remove several mempools from targets by moving the data into the
bio's new front_pad area(which dm calls 'per_bio_data').
- Fix a race in thin provisioning if discards are misused.
- Prevent userspace from interfering with the ioctl parameters and
use kmalloc for the data buffer if it's small instead of vmalloc.
- Throttle some annoying error messages when I/O fails."
* tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: (36 commits)
dm stripe: add WRITE SAME support
dm: remove map_info
dm snapshot: do not use map_context
dm thin: dont use map_context
dm raid1: dont use map_context
dm flakey: dont use map_context
dm raid1: rename read_record to bio_record
dm: move target request nr to dm_target_io
dm snapshot: use per_bio_data
dm verity: use per_bio_data
dm raid1: use per_bio_data
dm: introduce per_bio_data
dm kcopyd: add WRITE SAME support to dm_kcopyd_zero
dm linear: add WRITE SAME support
dm: add WRITE SAME support
dm: prepare to support WRITE SAME
dm ioctl: use kmalloc if possible
dm ioctl: remove PF_MEMALLOC
dm persistent data: improve improve space map block alloc failure message
dm thin: use DMERR_LIMIT for errors
...
Diffstat (limited to 'drivers/md/dm-raid.c')
| -rw-r--r-- | drivers/md/dm-raid.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 45d94a7e7f6..3d8984edeff 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -295,9 +295,11 @@ static int validate_region_size(struct raid_set *rs, unsigned long region_size) * Choose a reasonable default. All figures in sectors. */ if (min_region_size > (1 << 13)) { + /* If not a power of 2, make it the next power of 2 */ + if (min_region_size & (min_region_size - 1)) + region_size = 1 << fls(region_size); DMINFO("Choosing default region size of %lu sectors", region_size); - region_size = min_region_size; } else { DMINFO("Choosing default region size of 4MiB"); region_size = 1 << 13; /* sectors */ @@ -1216,7 +1218,7 @@ static void raid_dtr(struct dm_target *ti) context_free(rs); } -static int raid_map(struct dm_target *ti, struct bio *bio, union map_info *map_context) +static int raid_map(struct dm_target *ti, struct bio *bio) { struct raid_set *rs = ti->private; struct mddev *mddev = &rs->md; @@ -1430,7 +1432,7 @@ static void raid_resume(struct dm_target *ti) static struct target_type raid_target = { .name = "raid", - .version = {1, 3, 1}, + .version = {1, 4, 0}, .module = THIS_MODULE, .ctr = raid_ctr, .dtr = raid_dtr, |