Kent Overstreet 2a285686c1 bcache: btree locking rework ...

Add a new lock, b->write_lock, which is required to actually modify - or write -
a btree node; this lock is only held for short durations.

This means we can write out a btree node without taking b->lock, which _is_ held
for long durations - solving a deadlock when btree_flush_write() (from the
journalling code) is called with a btree node locked.

Right now just occurs in bch_btree_set_root(), but with an upcoming journalling
rework is going to happen a lot more.

This also turns b->lock is now more of a read/intent lock instead of a
read/write lock - but not completely, since it still blocks readers. May turn it
into a real intent lock at some point in the future.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>

2014-03-18 12:23:35 -07:00

..

bcache

bcache: btree locking rework

2014-03-18 12:23:35 -07:00

persistent-data

dm space map metadata: fix bug in resizing of thin metadata

2014-01-21 12:15:01 -05:00

bitmap.c

kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly

2013-12-11 15:28:36 -08:00

bitmap.h

kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly

2013-12-11 15:28:36 -08:00

dm-bio-prison.c

dm: add cache target

2013-03-01 22:45:51 +00:00

dm-bio-prison.h

dm: add cache target

2013-03-01 22:45:51 +00:00

dm-bio-record.h

dm: Refactor for new bio cloning/splitting

2013-11-23 22:33:55 -08:00

dm-bufio.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

dm-bufio.h

dm snapshot: use dm-bufio prefetch

2014-01-14 23:23:03 -05:00

dm-builtin.c

dm sysfs: fix a module unload race

2014-01-14 23:23:04 -05:00

dm-cache-block-types.h

dm: add cache target

2013-03-01 22:45:51 +00:00

dm-cache-metadata.c

dm cache metadata: check the metadata version when reading the superblock

2013-11-11 11:37:49 -05:00

dm-cache-metadata.h

dm cache: add passthrough mode

2013-11-11 11:37:49 -05:00

dm-cache-policy-cleaner.c

dm cache: policy change version from string to integer set

2013-03-20 17:21:27 +00:00

dm-cache-policy-internal.h

dm cache: add remove_cblock method to policy interface

2013-11-11 11:37:50 -05:00

dm-cache-policy-mq.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

dm-cache-policy.c

dm cache: add policy name to status output

2014-01-16 13:44:11 -05:00

dm-cache-policy.h

dm cache: add policy name to status output

2014-01-16 13:44:11 -05:00

dm-cache-target.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

dm-crypt.c

block: Convert drivers to immutable biovecs

2013-11-23 22:33:51 -08:00

dm-delay.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

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

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

dm-io.c

block: Convert drivers to immutable biovecs

2013-11-23 22:33:51 -08:00

dm-ioctl.c

dm: allow remove to be deferred

2013-11-09 18:20:22 -05:00

dm-kcopyd.c

dm: stop using WQ_NON_REENTRANT

2013-08-23 09:02:13 -04:00

dm-linear.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

dm-log-userspace-base.c

dm log userspace: allow mark requests to piggyback on flush requests

2014-01-21 23:46:27 -05:00

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: userspace add luid to distinguish between concurrent log instances

2009-09-04 20:40:34 +01:00

dm-log.c

dm: use memweight()

2012-07-30 17:25:16 -07:00

dm-mpath.c

dm mpath: requeue I/O during pg_init

2013-11-05 11:20:34 -05:00

dm-mpath.h

dm mpath: remove is_active from struct dm_path

2008-10-10 13:36:58 +01:00

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 mpath: add start_io and nr_bytes to path selectors

2009-06-22 10:12:27 +01:00

dm-queue-length.c

dm: reject trailing characters in sccanf input

2012-03-28 18:41:26 +01:00

dm-raid1.c

block: Convert drivers to immutable biovecs

2013-11-23 22:33:51 -08:00

dm-raid.c

MD: Remember the last sync operation that was performed

2013-06-26 12:38:24 +10:00

dm-region-hash.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

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

dm snapshot: use dm-bufio prefetch

2014-01-14 23:23:03 -05:00

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

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

dm-stats.c

dm stats: initialize read-only module parameter

2013-12-10 19:13:21 -05:00

dm-stats.h

dm: add statistics support

2013-09-05 20:46:06 -04:00

dm-stripe.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

dm-switch.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

dm-sysfs.c

dm sysfs: fix a module unload race

2014-01-14 23:23:04 -05:00

dm-table.c

dm table: remove unused buggy code that extends the targets array

2014-01-07 10:11:44 -05:00

dm-target.c

dm: allow error target to replace bio-based and request-based targets

2013-09-05 20:46:05 -04:00

dm-thin-metadata.c

dm thin: fix discard support to a previously shared block

2014-01-07 10:11:43 -05:00

dm-thin-metadata.h

dm thin: use bool rather than unsigned for flags in structures

2014-01-07 10:14:18 -05:00

dm-thin.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

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: uevent generate events

2007-10-20 02:01:26 +01:00

dm-verity.c

block: Generic bio chaining

2013-11-23 22:33:56 -08:00

dm-zero.c

dm: rename request variables to bios

2013-03-01 22:45:47 +00:00

dm.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

dm.h

dm sysfs: fix a module unload race

2014-01-14 23:23:04 -05:00

faulty.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

Kconfig

dm sysfs: fix a module unload race

2014-01-14 23:23:04 -05:00

linear.c

block: Introduce new bio_split()

2013-11-23 22:33:57 -08:00

linear.h

md/linear: typedef removal: linear_conf_t -> struct linear_conf

2011-10-11 16:48:54 +11:00

Makefile

dm sysfs: fix a module unload race

2014-01-14 23:23:04 -05:00

md.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

md.h

Driver core / sysfs patches for 3.14-rc1

2014-01-20 15:49:44 -08:00

multipath.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

multipath.h

md/multipath: typedef removal: multipath_conf_t -> struct mpconf

2011-10-11 16:48:57 +11:00

raid0.c

block: Introduce new bio_split()

2013-11-23 22:33:57 -08:00

raid0.h

md: add proper merge_bvec handling to RAID0 and Linear.

2012-03-19 12:46:39 +11:00

raid1.c

md/raid1: restore ability for check and repair to fix read errors.

2014-02-05 12:26:04 +11:00

raid1.h

raid1: Rewrite the implementation of iobarrier.

2013-11-19 15:19:18 +11:00

raid5.c

md/raid5: Fix CPU hotplug callback registration

2014-02-13 13:46:45 +11:00

raid5.h

md update for 3.13.

2013-11-20 13:05:25 -08:00

raid10.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

raid10.h

MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)

2013-02-26 11:55:30 +11:00