Josef Bacik 161c3549b4 Btrfs: change how we wait for pending ordered extents ... We have a mechanism to make sure we don't lose updates for ordered extents that were logged in the transaction that is currently running. We add the ordered extent to a transaction list and then the transaction waits on all the ordered extents in that list. However are substantially large file systems this list can be extremely large, and can give us soft lockups, since the ordered extents don't remove themselves from the list when they do complete. To fix this we simply add a counter to the transaction that is incremented any time we have a logged extent that needs to be completed in the current transaction. Then when the ordered extent finally completes it decrements the per transaction counter and wakes up the transaction if we are the last ones. This will eliminate the softlockup. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Chris Mason <clm@fb.com>		2015-10-21 18:51:40 -07:00
..
tests
acl.c
async-thread.c	btrfs: async_thread: Fix workqueue 'max_active' value when initializing	2015-08-31 11:46:40 -07:00
async-thread.h	btrfs: async_thread: Fix workqueue 'max_active' value when initializing	2015-08-31 11:46:40 -07:00
backref.c	Btrfs: fix warning in backref walking	2015-08-09 07:33:50 -07:00
backref.h
btrfs_inode.h	Btrfs: Direct I/O: Fix space accounting	2015-09-21 13:47:55 -07:00
check-integrity.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
check-integrity.h
compression.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
compression.h
ctree.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
ctree.h	Merge branch 'anand/sysfs-updates-v4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-12 16:24:15 -07:00
delayed-inode.c	btrfs: comment the rest of implicit barriers before waitqueue_active	2015-10-10 18:42:00 +02:00
delayed-inode.h
delayed-ref.c
delayed-ref.h
dev-replace.c	Merge branch 'fix/waitqueue-barriers' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-12 16:24:40 -07:00
dev-replace.h
dir-item.c
disk-io.c	Btrfs: change how we wait for pending ordered extents	2015-10-21 18:51:40 -07:00
disk-io.h	Btrfs: add btrfs_read_dev_one_super() to read one specific SB	2015-10-01 17:29:38 +02:00
export.c	BTRFS: support NFSv2 export	2015-10-06 06:55:23 -07:00
export.h
extent-tree.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
extent-tree.h
extent_io.c	Btrfs: fix double range unlock of hole region when reading page	2015-10-14 04:37:00 +01:00
extent_io.h
extent_map.c
extent_map.h
file-item.c
file.c	btrfs: declare rsv_count as unsigned int instead of int	2015-10-21 18:28:48 +02:00
free-space-cache.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
free-space-cache.h
hash.c
hash.h
inode-item.c	Btrfs: consolidate btrfs_error() to btrfs_std_error()	2015-09-29 16:30:00 +02:00
inode-map.c
inode-map.h
inode.c	Merge branch 'integration-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.4	2015-10-21 18:23:59 -07:00
ioctl.c	Merge branch 'integration-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.4	2015-10-21 18:23:59 -07:00
Kconfig
locking.c	btrfs: comment the rest of implicit barriers before waitqueue_active	2015-10-10 18:42:00 +02:00
locking.h
lzo.c
Makefile
math.h
ordered-data.c	Btrfs: change how we wait for pending ordered extents	2015-10-21 18:51:40 -07:00
ordered-data.h	Btrfs: change how we wait for pending ordered extents	2015-10-21 18:51:40 -07:00
orphan.c
print-tree.c
print-tree.h
props.c	btrfs: cleanup iterating over prop_handlers array	2015-10-21 18:28:48 +02:00
props.h
qgroup.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2015-09-01 18:46:42 -07:00
qgroup.h
raid56.c	btrfs: comment waitqueue_active implied by locks	2015-10-10 18:35:10 +02:00
raid56.h	Btrfs: add RAID 5/6 BTRFS_RBIO_REBUILD_MISSING operation	2015-08-09 07:34:26 -07:00
rcu-string.h
reada.c	btrfs: reada: Fix returned errno code	2015-10-21 18:29:50 +02:00
relocation.c	Btrfs: consolidate btrfs_error() to btrfs_std_error()	2015-09-29 16:30:00 +02:00
root-tree.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
scrub.c	btrfs: switch message printers to ratelimited variants	2015-10-08 13:04:06 +02:00
send.c	btrfs: fix resending received snapshot with parent	2015-10-13 20:04:10 +01:00
send.h
struct-funcs.c
super.c	Btrfs: __btrfs_std_error() logic should be consistent w/out CONFIG_PRINTK defined	2015-09-29 16:30:00 +02:00
sysfs.c	Btrfs: rename super_kobj to fsid_kobj	2015-09-29 16:29:59 +02:00
sysfs.h	Btrfs: rename btrfs_kobj_rm_device to btrfs_sysfs_rm_device_link	2015-09-29 16:29:59 +02:00
transaction.c	Btrfs: change how we wait for pending ordered extents	2015-10-21 18:51:40 -07:00
transaction.h	Btrfs: change how we wait for pending ordered extents	2015-10-21 18:51:40 -07:00
tree-defrag.c	Btrfs: cleanup: remove unnecessary check before btrfs_free_path is called	2015-08-31 11:46:41 -07:00
tree-log.c	Merge branch 'fix/waitqueue-barriers' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-12 16:24:40 -07:00
tree-log.h
ulist.c
ulist.h
uuid-tree.c
volumes.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
volumes.h	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
xattr.c
xattr.h
zlib.c