Linus Torvalds b49249d103 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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQ1M5OAAoJEK2W1qbAHj1nrQcP/itnnAw8RNsSHBrFMrL9wVnB 5dmZ1BXPZmEbG+ViU4wzVmRUPHuSHTwhIqH7UFPjyCgbWaz1jaXfpyIxBsxlJi4E zuGjv46akANMwH0o/aJDRuEIrCnMtjLrMiY2Oq00lJFvATurwYAKSIgmnwRVdAYy gDehJhaymNtHVjhymu33xEn/hqqkQtUbMDj9o+IZppmAw1aQyNuYnwQu3HvcETuz /JBcs8isXKIQMJdMLFdGg7lZjLO241UvSwCAeGycKkupHLaYfycumPywgdiNFVUg L6pQP9RtAQ+H2VBQ1OIVMJxqiXxQ0xHhyxUYIe3reTar+RXoMA0yK+FiJTwSY1cE Xk0s8x2DXwUyu3Vx7UmvgUXnMgd4TIPITYBYiOAanEF/8Xt0voZn8mzNyyzsyFXy 0u1vMRK+ZK7+QPio9LRh7bgHNK1g5ZyShvwqTMDmtlp+uskaP4iHDDGtVUjFA+Wf r9Ms0CXPbXIN6laUIT/4L3LJZtyRWB6e8wuCrUWIWWRbjrMPaPnB+/NlckGJ0CHa P/5r1rmLdneTEZ8Vx/2g3fBJ+H2uNQKhYujjnE0HqtHP+tvjt7ernibyU2QhNBeE Zy0PXRatY0Xn7UFpn44uJ2qxkWaO5Dloaa4HkWdlWFdR3f/u5MzVjy5mDXLUxkGq wj2Z3YkjYjy948MViBhD =yzhS -----END PGP SIGNATURE----- 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 ...		2012-12-21 17:08:06 -08:00
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persistent-data	Miscellaneous device-mapper fixes, cleanups and performance improvements.	2012-12-21 17:08:06 -08:00
bitmap.c	md/bitmap:Don't use IS_ERR to judge alloc_page().	2012-10-11 13:45:36 +11:00
bitmap.h
dm-bio-prison.c	dm thin: replace dm_cell_release_singleton with cell_defer_except	2012-12-21 20:23:31 +00:00
dm-bio-prison.h	dm thin: replace dm_cell_release_singleton with cell_defer_except	2012-12-21 20:23:31 +00:00
dm-bio-record.h
dm-bufio.c	dm: use ACCESS_ONCE for sysfs values	2012-10-12 16:59:46 +01:00
dm-bufio.h
dm-crypt.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-delay.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-io.c	dm kcopyd: add WRITE SAME support to dm_kcopyd_zero	2012-12-21 20:23:37 +00:00
dm-ioctl.c	dm ioctl: use kmalloc if possible	2012-12-21 20:23:36 +00:00
dm-kcopyd.c	dm kcopyd: add WRITE SAME support to dm_kcopyd_zero	2012-12-21 20:23:37 +00:00
dm-linear.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log.c
dm-mpath.c	dm mpath: fix check for null mpio in end_io fn	2012-10-12 16:59:42 +01:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-raid.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c
dm-snap-transient.c
dm-snap.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-stripe.c	dm stripe: add WRITE SAME support	2012-12-21 20:23:41 +00:00
dm-sysfs.c
dm-table.c	dm: introduce per_bio_data	2012-12-21 20:23:38 +00:00
dm-target.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-thin-metadata.c	dm persistent data: fix nested btree deletion	2012-12-21 20:23:32 +00:00
dm-thin-metadata.h
dm-thin.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-uevent.c
dm-uevent.h
dm-verity.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-zero.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm.h	dm: introduce per_bio_data	2012-12-21 20:23:38 +00:00
faulty.c	md faulty: use disk_stack_limits()	2012-10-22 10:44:55 +11:00
Kconfig	dm thin: move bio_prison code to separate module	2012-10-12 21:02:13 +01:00
linear.c	md: linear supports TRIM	2012-10-11 13:08:44 +11:00
linear.h
Makefile	dm thin: move bio_prison code to separate module	2012-10-12 21:02:13 +01:00
md.c	md update for 3.8	2012-12-18 09:32:44 -08:00
md.h	md update for 3.8	2012-12-18 09:32:44 -08:00
multipath.c	MD: change the parameter of md thread	2012-10-11 13:34:00 +11:00
multipath.h
raid0.c	md: raid 0 supports TRIM	2012-10-11 13:25:44 +11:00
raid0.h
raid1.c	Merge branch 'for-3.8/drivers' of git://git.kernel.dk/linux-block	2012-12-17 13:39:11 -08:00
raid1.h
raid5.c	md update for 3.8	2012-12-18 09:32:44 -08:00
raid5.h	MD: raid5 trim support	2012-10-11 13:49:05 +11:00
raid10.c	Merge branch 'for-3.8/drivers' of git://git.kernel.dk/linux-block	2012-12-17 13:39:11 -08:00
raid10.h	md/raid10: fix problem with on-stack allocation of r10bio structure.	2012-08-18 09:51:42 +10:00