kevin/linux
1
Fork 0
Code
b1bd055d39
linux/drivers/md
History
Martin K. Petersen b1bd055d39 block: Introduce blk_set_stacking_limits function 
Stacking driver queue limits are typically bounded exclusively by the
capabilities of the low level devices, not by the stacking driver
itself.

This patch introduces blk_set_stacking_limits() which has more liberal
metrics than the default queue limits function. This allows us to
inherit topology parameters from bottom devices without manually
tweaking the default limits in each driver prior to calling the stacking
function.

Since there is now a clear distinction between stacking and low-level
devices, blk_set_default_limits() has been modified to carry the more
conservative values that we used to manually set in
blk_queue_make_request().

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-01-11 16:27:11 +01:00
..
persistent-data device-mapper: using EXPORT_SYBOL in dm-space-map-checker.c needs export.h 2011-11-07 10:29:10 -08:00
bitmap.c md/lock: ensure updates to page_attrs are properly locked. 2011-11-23 10:18:52 +11:00
bitmap.h md: remove typedefs: mddev_t -> struct mddev 2011-10-11 16:47:53 +11:00
dm-bio-record.h
dm-bufio.c device-mapper: dm-bufio.c needs to include module.h 2011-11-07 10:29:10 -08:00
dm-bufio.h dm: add bufio 2011-10-31 20:19:09 +00:00
dm-crypt.c dm crypt: always disable discard_zeroes_data 2011-09-25 23:26:21 +01:00
dm-delay.c
dm-exception-store.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-exception-store.h
dm-flakey.c dm: flakey fix corrupt_bio_byte error path 2011-09-25 23:26:15 +01:00
dm-io.c dm io: flush cpu cache with vmapped io 2011-08-02 12:32:01 +01:00
dm-ioctl.c dm table: add immutable feature 2011-10-31 20:19:04 +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-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
dm-log-userspace-transfer.h
dm-log.c dm: use vzalloc 2011-08-02 12:32:02 +01:00
dm-mpath.c dm table: share target argument parsing functions 2011-08-02 12:32:04 +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 atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
dm-raid1.c dm kcopyd: return client directly and not through a pointer 2011-05-29 13:03:13 +01:00
dm-raid.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-region-hash.c Fix common misspellings 2011-03-31 11:26:23 -03:00
dm-round-robin.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-service-time.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
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: skip reading origin when overwriting complete chunk 2011-08-02 12:32:04 +01:00
dm-stripe.c dm stripe: implement merge method 2011-03-24 13:54:35 +00:00
dm-sysfs.c
dm-table.c block: Introduce blk_set_stacking_limits function 2012-01-11 16:27:11 +01:00
dm-target.c
dm-thin-metadata.c dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
dm-thin-metadata.h dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
dm-thin.c dm: add thin provisioning target 2011-10-31 20:21:18 +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-zero.c
dm.c Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-block 2011-11-04 17:06:58 -07:00
dm.h dm table: add immutable feature 2011-10-31 20:19:04 +00:00
faulty.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
Kconfig dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
linear.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
linear.h md/linear: typedef removal: linear_conf_t -> struct linear_conf 2011-10-11 16:48:54 +11:00
Makefile dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
md.c block: Introduce blk_set_stacking_limits function 2012-01-11 16:27:11 +01:00
md.h Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-block 2011-11-04 17:06:58 -07:00
multipath.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
multipath.h md/multipath: typedef removal: multipath_conf_t -> struct mpconf 2011-10-11 16:48:57 +11:00
raid0.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
raid0.h md/raid0: typedef removal: raid0_conf_t -> struct r0conf 2011-10-11 16:48:59 +11:00
raid1.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
raid1.h md: add proper write-congestion reporting to RAID1 and RAID10. 2011-10-11 16:50:01 +11:00
raid5.c md: raid5 crash during degradation 2011-12-09 14:26:11 +11:00
raid5.h md/raid5: typedef removal: raid5_conf_t -> struct r5conf 2011-10-11 16:49:52 +11:00
raid10.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
raid10.h md: add proper write-congestion reporting to RAID1 and RAID10. 2011-10-11 16:50:01 +11:00