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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-04 21:19:53 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-04 21:19:53 -0800 |
commit | e0700ce70921fbe3d1913968c663beb9df2b01a9 (patch) | |
tree | 8f8163dbdce74942a6ebe849c43c4fdcf2b52799 /drivers/md/dm-snap-persistent.c | |
parent | ac322de6bf5416cb145b58599297b8be73cd86ac (diff) | |
parent | aad9ae4550755edc020b5c511a8b54f0104b2f47 (diff) | |
download | op-kernel-dev-e0700ce70921fbe3d1913968c663beb9df2b01a9.zip op-kernel-dev-e0700ce70921fbe3d1913968c663beb9df2b01a9.tar.gz |
Merge tag 'dm-4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
"Smaller set of DM changes for this merge. I've based these changes on
Jens' for-4.4/reservations branch because the associated DM changes
required it.
- Revert a dm-multipath change that caused a regression for
unprivledged users (e.g. kvm guests) that issued ioctls when a
multipath device had no available paths.
- Include Christoph's refactoring of DM's ioctl handling and add
support for passing through persistent reservations with DM
multipath.
- All other changes are very simple cleanups"
* tag 'dm-4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm switch: simplify conditional in alloc_region_table()
dm delay: document that offsets are specified in sectors
dm delay: capitalize the start of an delay_ctr() error message
dm delay: Use DM_MAPIO macros instead of open-coded equivalents
dm linear: remove redundant target name from error messages
dm persistent data: eliminate unnecessary return values
dm: eliminate unused "bioset" process for each bio-based DM device
dm: convert ffs to __ffs
dm: drop NULL test before kmem_cache_destroy() and mempool_destroy()
dm: add support for passing through persistent reservations
dm: refactor ioctl handling
Revert "dm mpath: fix stalls when handling invalid ioctls"
dm: initialize non-blk-mq queue data before queue is used
Diffstat (limited to 'drivers/md/dm-snap-persistent.c')
-rw-r--r-- | drivers/md/dm-snap-persistent.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index 117a05e..3164b8b 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -322,7 +322,7 @@ static int read_header(struct pstore *ps, int *new_snapshot) bdev_logical_block_size(dm_snap_cow(ps->store->snap)-> bdev) >> 9); ps->store->chunk_mask = ps->store->chunk_size - 1; - ps->store->chunk_shift = ffs(ps->store->chunk_size) - 1; + ps->store->chunk_shift = __ffs(ps->store->chunk_size); chunk_size_supplied = 0; } |