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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-21 17:08:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-21 17:08:06 -0800
commitb49249d10324d0fd6fb29725c2807dfd80d0edbc (patch)
tree9a8fa724e6c9f9283530979c6e32a311c74999d5 /drivers/memory
parent10532b560bacf23766f9c7dc09778b31b198ff45 (diff)
parent45e621d45e24ffc4cb2b2935e8438987b860063a (diff)
downloadblackbird-op-linux-b49249d10324d0fd6fb29725c2807dfd80d0edbc.tar.gz
blackbird-op-linux-b49249d10324d0fd6fb29725c2807dfd80d0edbc.zip
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 ...
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