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33061bd104
kernel_optimize_test/fs/btrfs
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Pavel Begunkov 33061bd104 btrfs: fix async discard stall 
[ Upstream commit ea9ed87c73e87e044b2c58d658eb4ba5216bc488 ]

Might happen that bg->discard_eligible_time was changed without
rescheduling, so btrfs_discard_workfn() wakes up earlier than that new
time, peek_discard_list() returns NULL, and all work halts and goes to
sleep without further rescheduling even there are block groups to
discard.

It happens pretty often, but not so visible from the userspace because
after some time it usually will be kicked off anyway by someone else
calling btrfs_discard_reschedule_work().

Fix it by continue rescheduling if block group discard lists are not
empty.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-19 18:27:24 +01:00
..
tests btrfs: fix missing delalloc new bit for new delalloc ranges 2020-11-13 22:15:59 +01:00
acl.c
async-thread.c
async-thread.h
backref.c btrfs: add a helper to read the tree_root commit root for backref lookup 2020-10-26 15:04:57 +01:00
backref.h
block-group.c btrfs: drop the path before adding block group sysfs files 2020-10-26 15:01:34 +01:00
block-group.h btrfs: convert block group refcount to refcount_t 2020-07-27 12:55:42 +02:00
block-rsv.c btrfs: print the block rsv type when we fail our reservation 2020-11-05 13:02:05 +01:00
block-rsv.h
btrfs_inode.h btrfs: fix deadlock when cloning inline extent and low on free metadata space 2021-01-17 14:16:54 +01:00
check-integrity.c btrfs: check-integrity: remove unnecessary failure messages during memory allocation 2020-07-27 12:55:21 +02:00
check-integrity.h
compression.c btrfs: compression: move declarations to header 2020-10-07 12:06:55 +02:00
compression.h btrfs: compression: move declarations to header 2020-10-07 12:06:55 +02:00
ctree.c btrfs: cleanup cow block on error 2020-10-07 12:17:59 +02:00
ctree.h btrfs: fix deadlock when cloning inline extent and low on free metadata space 2021-01-17 14:16:54 +01:00
delalloc-space.c btrfs: add btrfs_reserve_data_bytes and use it 2020-10-07 12:06:52 +02:00
delalloc-space.h btrfs: make btrfs_delalloc_reserve_space take btrfs_inode 2020-07-27 12:55:36 +02:00
delayed-inode.c btrfs: sink total_data parameter in setup_items_for_insert 2020-10-07 12:13:18 +02:00
delayed-inode.h
delayed-ref.c
delayed-ref.h
dev-replace.c btrfs: fix deadlock when cloning inline extent and low on free metadata space 2021-01-17 14:16:54 +01:00
dev-replace.h
dir-item.c
discard.c btrfs: fix async discard stall 2021-01-19 18:27:24 +01:00
discard.h
disk-io.c for-5.10-rc1-tag 2020-10-30 13:29:49 -07:00
disk-io.h btrfs: add a helper to read the tree_root commit root for backref lookup 2020-10-26 15:04:57 +01:00
export.c btrfs: simplify iget helpers 2020-05-25 11:25:37 +02:00
export.h
extent_io.c btrfs: prevent NULL pointer dereference in extent_io_tree_panic 2021-01-19 18:27:17 +01:00
extent_io.h btrfs: remove struct extent_io_ops 2020-10-07 12:13:25 +02:00
extent_map.c
extent_map.h
extent-io-tree.h btrfs: remove struct extent_io_ops 2020-10-07 12:13:25 +02:00
extent-tree.c btrfs: update last_byte_to_unpin in switch_commit_roots 2020-12-30 11:54:13 +01:00
file-item.c btrfs: make btrfs_find_ordered_sum take btrfs_inode 2020-10-07 12:12:19 +02:00
file.c btrfs: fix missing delalloc new bit for new delalloc ranges 2020-11-13 22:15:59 +01:00
free-space-cache.c btrfs: free-space-cache: use unaligned helpers to access data 2020-10-07 12:13:23 +02:00
free-space-cache.h btrfs: let btrfs_return_cluster_to_free_space() return void 2020-07-27 12:55:21 +02:00
free-space-tree.c btrfs: block-group: fix free-space bitmap threshold 2020-08-27 13:37:54 +02:00
free-space-tree.h
inode-item.c
inode-map.c btrfs: make btrfs_delalloc_reserve_space take btrfs_inode 2020-07-27 12:55:36 +02:00
inode-map.h
inode.c btrfs: shrink delalloc pages instead of full inodes 2021-01-17 14:16:54 +01:00
ioctl.c btrfs: fix deadlock when cloning inline extent and low on free metadata space 2021-01-17 14:16:54 +01:00
Kconfig btrfs: switch to iomap for direct IO 2020-10-07 12:06:57 +02:00
locking.c btrfs: add nesting tags to the locking helpers 2020-10-07 12:12:16 +02:00
locking.h btrfs: introduce BTRFS_NESTING_NEW_ROOT for adding new roots 2020-10-07 12:12:17 +02:00
lzo.c
Makefile
misc.h
ordered-data.c btrfs: remove inode argument from btrfs_start_ordered_extent 2020-10-07 12:13:22 +02:00
ordered-data.h btrfs: remove inode argument from btrfs_start_ordered_extent 2020-10-07 12:13:22 +02:00
orphan.c
print-tree.c btrfs: pretty print leaked root name 2020-10-07 12:12:20 +02:00
print-tree.h btrfs: pretty print leaked root name 2020-10-07 12:12:20 +02:00
props.c btrfs: simplify iget helpers 2020-05-25 11:25:37 +02:00
props.h
qgroup.c btrfs: qgroup: don't try to wait flushing if we're already holding a transaction 2021-01-12 20:18:24 +01:00
qgroup.h btrfs: qgroup: export qgroups in sysfs 2020-07-27 12:55:37 +02:00
raid56.c btrfs: raid56: remove out label in __raid56_parity_recover 2020-07-27 12:55:44 +02:00
raid56.h
rcu-string.h
reada.c btrfs: fix readahead hang and use-after-free after removing a device 2020-10-26 15:03:59 +01:00
ref-verify.c btrfs: ref-verify: fix memory leak in btrfs_ref_tree_mod 2020-11-05 13:03:39 +01:00
ref-verify.h
reflink.c btrfs: fix deadlock when cloning inline extent and low on free metadata space 2021-01-17 14:16:54 +01:00
reflink.h
relocation.c btrfs: reloc: fix wrong file extent type check to avoid false ENOENT 2021-01-19 18:27:17 +01:00
root-tree.c btrfs: qgroup: fix qgroup meta rsv leak for subvolume operations 2020-10-07 12:12:13 +02:00
scrub.c btrfs: scrub: update message regarding read-only status 2020-11-05 13:02:58 +01:00
send.c btrfs: send: fix wrong file path when there is an inode with a pending rmdir 2021-01-12 20:18:24 +01:00
send.h btrfs: send: avoid copying file data 2020-10-07 12:13:17 +02:00
space-info.c btrfs: shrink delalloc pages instead of full inodes 2021-01-17 14:16:54 +01:00
space-info.h btrfs: add btrfs_reserve_data_bytes and use it 2020-10-07 12:06:52 +02:00
struct-funcs.c btrfs: use unaligned helpers for stack and header set/get helpers 2020-10-07 12:13:23 +02:00
super.c btrfs: kill the RCU protection for fs_info->space_info 2020-10-07 12:13:19 +02:00
sysfs.c btrfs: do not create raid sysfs entries under any locks 2020-10-07 12:13:19 +02:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: update last_byte_to_unpin in switch_commit_roots 2020-12-30 11:54:13 +01:00
transaction.h btrfs: dio iomap DSYNC workaround 2020-10-07 12:06:57 +02:00
tree-checker.c btrfs: tree-checker: check if chunk item end overflows 2021-01-19 18:27:22 +01:00
tree-checker.h
tree-defrag.c btrfs: remove unused btrfs_root::defrag_trans_start 2020-07-27 12:55:28 +02:00
tree-log.c btrfs: skip unnecessary searches for xattrs when logging an inode 2021-01-17 14:16:53 +01:00
tree-log.h btrfs: make fast fsyncs wait only for writeback 2020-10-07 12:06:56 +02:00
ulist.c
ulist.h
uuid-tree.c
volumes.c btrfs: don't access possibly stale fs_info data for printing duplicate device 2020-11-23 21:16:12 +01:00
volumes.h btrfs: convert data_seqcount to seqcount_mutex_t 2020-10-27 15:11:51 +01:00
xattr.c btrfs: skip unnecessary searches for xattrs when logging an inode 2021-01-17 14:16:53 +01:00
xattr.h
zlib.c
zstd.c