linux/fs/btrfs
David Sterba 0d7ed32c1e btrfs: protect exclusive_operation by super_lock
The exclusive operation is now atomically checked and set using bit
operations. Switch it to protection by spinlock. The super block lock is
not frequently used and adding a new lock seems like an overkill so it
should be safe to reuse it.

The reason to use spinlock is to enhance the locking context so more
checks can be done, eg. allowing the same exclusive operation enter
the exclop section and cancel the running one. This will be used for
resize and device delete.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2021-06-21 15:19:06 +02:00
..
tests idmapped-mounts-v5.12 2021-02-23 13:39:45 -08:00
acl.c fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
async-thread.c
async-thread.h
backref.c btrfs: move the tree mod log code into its own file 2021-04-19 17:25:16 +02:00
backref.h btrfs: add asserts for deleting backref cache nodes 2021-02-08 22:58:56 +01:00
block-group.c btrfs: zoned: fix negative space_info->bytes_readonly 2021-06-17 11:12:14 +02:00
block-group.h btrfs: zoned: automatically reclaim zones 2021-04-20 20:46:31 +02:00
block-rsv.c btrfs: introduce mount option rescue=ignorebadroots 2020-12-08 15:53:41 +01:00
block-rsv.h
btrfs_inode.h btrfs: remove stale comment and logic from btrfs_inode_in_log() 2021-04-19 17:25:16 +02:00
check-integrity.c btrfs: integrity-checker: convert block context kmap's to kmap_local_page 2021-04-19 17:25:16 +02:00
check-integrity.h
compression.c btrfs: reduce compressed_bio members' types 2021-06-21 15:19:06 +02:00
compression.h btrfs: reduce compressed_bio members' types 2021-06-21 15:19:06 +02:00
ctree.c btrfs: always abort the transaction if we abort a trans handle 2021-06-21 15:19:06 +02:00
ctree.h btrfs: protect exclusive_operation by super_lock 2021-06-21 15:19:06 +02:00
delalloc-space.c btrfs: fix parameter description of btrfs_inode_rsv_release/btrfs_delalloc_release_space 2021-02-08 22:58:54 +01:00
delalloc-space.h
delayed-inode.c btrfs: abort transaction if we fail to update the delayed inode 2021-06-21 15:19:05 +02:00
delayed-inode.h btrfs: make btrfs_delayed_update_inode take btrfs_inode 2020-12-08 15:54:10 +01:00
delayed-ref.c btrfs: update debug message when checking seq number of a delayed ref 2021-04-19 17:25:17 +02:00
delayed-ref.h btrfs: only let one thread pre-flush delayed refs in commit 2021-02-08 22:58:56 +01:00
dev-replace.c btrfs: do not initialize dev replace for bad dev root 2021-03-17 19:42:14 +01:00
dev-replace.h btrfs: zoned: mark block groups to copy for device-replace 2021-02-09 02:46:07 +01:00
dir-item.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
discard.c btrfs: document now parameter of peek_discard_list 2021-02-08 22:58:53 +01:00
discard.h btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
disk-io.c btrfs: simplify eb checksum verification in btrfs_validate_metadata_buffer 2021-06-21 15:19:06 +02:00
disk-io.h btrfs: split alloc_log_tree() 2021-02-09 02:46:07 +01:00
export.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
export.h
extent_io.c btrfs: clean up header members offsets in write helpers 2021-06-21 15:19:06 +02:00
extent_io.h btrfs: remove io_failure_record::in_validation 2021-06-21 15:19:05 +02:00
extent_map.c btrfs: fix parameter description of btrfs_add_extent_mapping 2021-02-08 22:58:53 +01:00
extent_map.h
extent-io-tree.h btrfs: use fixed width int type for extent_state::state 2020-12-08 15:54:13 +01:00
extent-tree.c btrfs: always abort the transaction if we abort a trans handle 2021-06-21 15:19:06 +02:00
file-item.c btrfs: fix fsync failure and transaction abort after writes to prealloc extents 2021-05-27 23:31:36 +02:00
file.c btrfs: return value from btrfs_mark_extent_written() in case of error 2021-06-04 13:11:58 +02:00
free-space-cache.c btrfs: don't set the full sync flag when truncation does not touch extents 2021-06-21 15:19:05 +02:00
free-space-cache.h btrfs: zoned: track unusable bytes for zones 2021-02-09 02:46:03 +01:00
free-space-tree.c btrfs: fix possible free space tree corruption with online conversion 2021-01-25 18:44:37 +01:00
free-space-tree.h
inode-item.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
inode.c btrfs: don't set the full sync flag when truncation does not touch extents 2021-06-21 15:19:05 +02:00
ioctl.c btrfs: protect exclusive_operation by super_lock 2021-06-21 15:19:06 +02:00
Kconfig btrfs: switch to iomap for direct IO 2020-10-07 12:06:57 +02:00
locking.c btrfs: remove the recurse parameter from __btrfs_tree_read_lock 2020-12-08 15:54:09 +01:00
locking.h btrfs: remove the recurse parameter from __btrfs_tree_read_lock 2020-12-08 15:54:09 +01:00
lzo.c btrfs: convert kmap to kmap_local_page, simple cases 2021-04-19 17:25:16 +02:00
Makefile btrfs: move the tree mod log code into its own file 2021-04-19 17:25:16 +02:00
misc.h
ordered-data.c btrfs: zoned: fix silent data loss after failure splitting ordered extent 2021-04-28 20:09:38 +02:00
ordered-data.h btrfs: fix comment for btrfs ordered extent flag bits 2021-04-19 17:25:14 +02:00
orphan.c
print-tree.c btrfs: print the actual offset in btrfs_root_name 2021-01-07 17:25:05 +01:00
print-tree.h btrfs: print the actual offset in btrfs_root_name 2021-01-07 17:25:05 +01:00
props.c
props.h
qgroup.c btrfs: fix deadlock when cloning inline extents and using qgroups 2021-04-28 20:09:47 +02:00
qgroup.h btrfs: export and rename qgroup_reserve_meta 2021-03-02 16:58:30 +01:00
raid56.c CFI on arm64 series for v5.13-rc1 2021-04-27 10:16:46 -07:00
raid56.h
rcu-string.h
reada.c btrfs: subpage: make readahead work properly 2021-03-16 11:06:21 +01:00
ref-verify.c btrfs: ref-verify: use 'inline void' keyword ordering 2021-03-02 16:55:40 +01:00
ref-verify.h
reflink.c for-5.13-rc4-tag 2021-06-03 11:37:14 -07:00
reflink.h
relocation.c btrfs: check return value of btrfs_commit_transaction in relocation 2021-04-19 17:25:22 +02:00
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: factor out common scrub_stripe constraints 2021-06-21 15:19:06 +02:00
send.c btrfs: fix deadlock when cloning inline extents and using qgroups 2021-04-28 20:09:47 +02:00
send.h btrfs: send: avoid copying file data 2020-10-07 12:13:17 +02:00
space-info.c btrfs: handle preemptive delalloc flushing slightly differently 2021-06-21 15:19:04 +02:00
space-info.h btrfs: zoned: track unusable bytes for zones 2021-02-09 02:46:03 +01:00
struct-funcs.c btrfs: handle sectorsize < PAGE_SIZE case for extent buffer accessors 2020-12-09 19:16:10 +01:00
subpage.c btrfs: subpage: add overview comments 2021-04-19 17:25:18 +02:00
subpage.h btrfs: subpage: introduce helpers for writeback status 2021-04-19 17:25:18 +02:00
super.c btrfs: always abort the transaction if we abort a trans handle 2021-06-21 15:19:06 +02:00
sysfs.c btrfs: sysfs: fix format string for some discard stats 2021-06-21 15:19:06 +02:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: clear defrag status of a root if starting transaction fails 2021-06-21 15:19:06 +02:00
transaction.h btrfs: always abort the transaction if we abort a trans handle 2021-06-21 15:19:06 +02:00
tree-checker.c btrfs: tree-checker: check for BTRFS_BLOCK_FLAG_FULL_BACKREF being set improperly 2021-04-19 17:25:21 +02:00
tree-checker.h
tree-defrag.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
tree-log.c btrfs: clear log tree recovering status if starting transaction fails 2021-06-21 15:19:06 +02:00
tree-log.h btrfs: make fast fsyncs wait only for writeback 2020-10-07 12:06:56 +02:00
tree-mod-log.c btrfs: fix race when picking most recent mod log operation for an old root 2021-04-20 19:27:17 +02:00
tree-mod-log.h btrfs: add and use helper to get lowest sequence number for the tree mod log 2021-04-19 17:25:17 +02:00
ulist.c
ulist.h
uuid-tree.c btrfs: remove unnecessary casts in printk 2020-12-08 15:53:52 +01:00
volumes.c btrfs: remove stale comment for argument seed of btrfs_find_device 2021-06-21 15:19:04 +02:00
volumes.h btrfs: scrub: per-device bandwidth control 2021-06-21 15:19:05 +02:00
xattr.c for-5.12-rc1-tag 2021-03-05 12:21:14 -08:00
xattr.h
zlib.c btrfs: use memzero_page() instead of open coded kmap pattern 2021-05-05 11:27:27 -07:00
zoned.c btrfs: zoned: factor out zoned device lookup 2021-06-21 15:19:05 +02:00
zoned.h btrfs: zoned: factor out zoned device lookup 2021-06-21 15:19:05 +02:00
zstd.c btrfs: use memzero_page() instead of open coded kmap pattern 2021-05-05 11:27:27 -07:00