Mikulas Patocka 9c5091f2ee dm ioctl: use kmalloc if possible ... If the parameter buffer is small enough, try to allocate it with kmalloc() rather than vmalloc(). vmalloc is noticeably slower than kmalloc because it has to manipulate page tables. In my tests, on PA-RISC this patch speeds up activation 13 times. On Opteron this patch speeds up activation by 5%. This patch introduces a new function free_params() to free the parameters and this uses new flags that record whether or not vmalloc() was used and whether or not the input buffer must be wiped after use. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>		2012-12-21 20:23:36 +00:00
..
persistent-data	dm persistent data: improve improve space map block alloc failure message	2012-12-21 20:23:36 +00:00
bitmap.c	md/bitmap:Don't use IS_ERR to judge alloc_page().	2012-10-11 13:45:36 +11:00
bitmap.h	md/bitmap: record the space available for the bitmap in the superblock.	2012-05-22 13:55:34 +10:00
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 bufio: prefetch	2012-03-28 18:41:29 +01:00
dm-crypt.c	block: Add bio_clone_bioset(), bio_clone_kmalloc()	2012-09-09 10:35:39 +02:00
dm-delay.c	dm thin: commit before gathering status	2012-07-27 15:08:16 +01:00
dm-exception-store.c	dm: replace simple_strtoul	2012-07-27 15:07:59 +01:00
dm-exception-store.h	dm snapshot: test chunk size against both origin and snapshot	2010-08-12 04:13:51 +01:00
dm-flakey.c	dm thin: commit before gathering status	2012-07-27 15:08:16 +01:00
dm-io.c	block: Generalized bio pool freeing	2012-09-09 10:35:38 +02:00
dm-ioctl.c	dm ioctl: use kmalloc if possible	2012-12-21 20:23:36 +00:00
dm-kcopyd.c	dm kcopyd: add dm_kcopyd_zero to zero an area	2011-10-31 20:18:58 +00:00
dm-linear.c	dm thin: commit before gathering status	2012-07-27 15:08:16 +01:00
dm-log-userspace-base.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
dm-log-userspace-transfer.c	connector/userns: replace netlink uses of cap_raised() with capable()	2012-05-10 23:21:39 -04:00
dm-log-userspace-transfer.h
dm-log.c	dm: use memweight()	2012-07-30 17:25:16 -07:00
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	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
dm-path-selector.h
dm-queue-length.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-raid1.c	dm raid: use DM_ENDIO_INCOMPLETE	2012-12-21 20:23:32 +00:00
dm-raid.c	dm raid: round region_size to power of two	2012-12-21 20:23:33 +00:00
dm-region-hash.c	dm raid1: fix crash with mirror recovery and discard	2012-07-20 14:25:03 +01:00
dm-round-robin.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-service-time.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-snap-persistent.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
dm-snap-transient.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
dm-snap.c	dm snapshot: optimize track_chunk	2012-12-21 20:23:33 +00:00
dm-stripe.c	workqueue: deprecate flush[_delayed]_work_sync()	2012-08-20 14:51:24 -07:00
dm-sysfs.c	Driver core: Constify struct sysfs_ops in struct kobj_type	2010-03-07 17:04:49 -08:00
dm-table.c	dm: disable WRITE SAME	2012-12-21 20:23:30 +00:00
dm-target.c	dm: error return error for discards	2010-08-12 04:14:14 +01:00
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 metadata: introduce dm_pool_abort_metadata	2012-07-27 15:08:15 +01:00
dm-thin.c	dm thin: use DMERR_LIMIT for errors	2012-12-21 20:23:34 +00:00
dm-uevent.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
dm-uevent.h
dm-verity.c	dm: use ACCESS_ONCE for sysfs values	2012-10-12 16:59:46 +01:00
dm-zero.c	dm: zero silently drop discards	2010-08-12 04:14:12 +01:00
dm.c	dm: fix deadlock with request based dm and queue request_fn recursion	2012-11-23 14:32:54 +01:00
dm.h	dm: retain table limits when swapping to new table with no devices	2012-09-26 23:45:45 +01:00
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	md/linear: typedef removal: linear_conf_t -> struct linear_conf	2011-10-11 16:48:54 +11:00
Makefile	dm thin: move bio_prison code to separate module	2012-10-12 21:02:13 +01:00
md.c	md: make sure everything is freed when dm-raid stops an array.	2012-11-20 10:27:37 +11:00
md.h	Subject: [PATCH] md:change resync_mismatches to atomic64_t to avoid races	2012-10-11 14:17:59 +11:00
multipath.c	MD: change the parameter of md thread	2012-10-11 13:34:00 +11:00
multipath.h	md/multipath: typedef removal: multipath_conf_t -> struct mpconf	2011-10-11 16:48:57 +11:00
raid0.c	md: raid 0 supports TRIM	2012-10-11 13:25:44 +11:00
raid0.h	md: add proper merge_bvec handling to RAID0 and Linear.	2012-03-19 12:46:39 +11:00
raid1.c	md/raid1{,0}: fix deadlock in bitmap_unplug.	2012-11-27 12:14:40 +11:00
raid1.h	md/raid1: prevent merging too large request	2012-07-31 10:03:53 +10:00
raid5.c	md/raid5: Make sure we clear R5_Discard when discard is finished.	2012-11-22 09:14:13 +11:00
raid5.h	MD: raid5 trim support	2012-10-11 13:49:05 +11:00
raid10.c	md/raid1{,0}: fix deadlock in bitmap_unplug.	2012-11-27 12:14:40 +11:00
raid10.h	md/raid10: fix problem with on-stack allocation of r10bio structure.	2012-08-18 09:51:42 +10:00