Nikolay Borisov e678934cbe btrfs: Remove unnecessary check from join_running_log_trans ... join_running_log_trans checks btrfs_root::log_root outside of btrfs_root::log_mutex to avoid contention on the mutex. Turns out this check is not necessary because the two callers of join_running_log_trans (both of which deal with removing entries from the tree-log during unlink) explicitly check whether the respective inode has been logged in the current transaction. If it hasn't then it won't have any items in the tree-log and call path will return before calling join_running_log_trans. If the check passes, however, then it's guaranteed that btrfs_root::log_root is set because the inode is logged. Those guarantees allows us to remove the speculative as well as the implicity and tricky memory barrier. Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2019-09-09 14:59:02 +02:00
..
tests	btrfs: Remove leftover of in-band dedupe	2019-09-09 14:58:59 +02:00
Kconfig	btrfs: Fix build error while LIBCRC32C is module	2019-07-17 17:03:30 +02:00
Makefile	btrfs: migrate the delalloc space stuff to it's own home	2019-07-04 17:26:17 +02:00
acl.c	btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter	2019-04-29 19:02:44 +02:00
async-thread.c	…
async-thread.h	…
backref.c	Btrfs: fix deadlock between fiemap and transaction commits	2019-07-30 18:25:12 +02:00
backref.h	btrfs: fiemap: preallocate ulists for btrfs_check_shared	2019-07-01 13:34:53 +02:00
block-rsv.c	btrfs: migrate the global_block_rsv helpers to block-rsv.c	2019-07-02 12:30:55 +02:00
block-rsv.h	btrfs: migrate the global_block_rsv helpers to block-rsv.c	2019-07-02 12:30:55 +02:00
btrfs_inode.h	btrfs: remove assumption about csum type form btrfs_print_data_csum_error()	2019-07-01 13:35:02 +02:00
check-integrity.c	btrfs: reduce stack usage for btrfsic_process_written_block	2019-09-09 14:58:58 +02:00
check-integrity.h	…
compression.c	btrfs: lift bio_set_dev from bio allocation helpers	2019-07-02 12:30:51 +02:00
compression.h	btrfs: correctly validate compression type	2019-07-02 12:30:48 +02:00
ctree.c	btrfs: assert tree mod log lock in __tree_mod_log_insert	2019-09-09 14:59:00 +02:00
ctree.h	btrfs: volumes: Remove ENOSPC-prone btrfs_can_relocate()	2019-09-09 14:59:01 +02:00
delalloc-space.c	btrfs: migrate the delalloc space stuff to it's own home	2019-07-04 17:26:17 +02:00
delalloc-space.h	btrfs: migrate the delalloc space stuff to it's own home	2019-07-04 17:26:17 +02:00
delayed-inode.c	btrfs: delayed-inode: Kill the BUG_ON() in btrfs_delete_delayed_dir_index()	2019-09-09 14:59:01 +02:00
delayed-inode.h	…
delayed-ref.c	btrfs: migrate the delayed refs rsv code	2019-07-04 17:26:17 +02:00
delayed-ref.h	btrfs: migrate the delayed refs rsv code	2019-07-04 17:26:17 +02:00
dev-replace.c	btrfs: remove mapping tree structures indirection	2019-07-01 13:34:56 +02:00
dev-replace.h	btrfs: get fs_info from trans in btrfs_run_dev_replace	2019-04-29 19:02:43 +02:00
dir-item.c	btrfs: remove unused parameter fs_info from btrfs_extend_item	2019-04-29 19:02:50 +02:00
disk-io.c	Btrfs: fix sysfs warning and missing raid sysfs directories	2019-08-07 16:25:44 +02:00
disk-io.h	btrfs: directly call into crypto framework for checksumming	2019-07-01 13:35:02 +02:00
export.c	…
export.h	…
extent-tree.c	btrfs: extent-tree: Make sure we only allocate extents from block groups with the same type	2019-09-09 14:59:01 +02:00
extent_io.c	btrfs: Remove delalloc_end argument from extent_clear_unlock_delalloc	2019-09-09 14:58:59 +02:00
extent_io.h	btrfs: Remove delalloc_end argument from extent_clear_unlock_delalloc	2019-09-09 14:58:59 +02:00
extent_map.c	btrfs: assert extent map tree lock in add_extent_mapping	2019-09-09 14:59:00 +02:00
extent_map.h	…
file-item.c	btrfs: directly call into crypto framework for checksumming	2019-07-01 13:35:02 +02:00
file.c	btrfs: Remove leftover of in-band dedupe	2019-09-09 14:58:59 +02:00
free-space-cache.c	btrfs: migrate the delalloc space stuff to it's own home	2019-07-04 17:26:17 +02:00
free-space-cache.h	btrfs: get fs_info from block group in btrfs_find_space_cluster	2019-04-29 19:02:46 +02:00
free-space-tree.c	btrfs: get fs_info from block group in search_free_space_info	2019-04-29 19:02:46 +02:00
free-space-tree.h	btrfs: get fs_info from block group in search_free_space_info	2019-04-29 19:02:46 +02:00
inode-item.c	btrfs: remove unused parameter fs_info from btrfs_extend_item	2019-04-29 19:02:50 +02:00
inode-map.c	Btrfs: wake up inode cache waiters sooner to reduce waiting time	2019-09-09 14:59:02 +02:00
inode-map.h	…
inode.c	btrfs: Add an assertion to warn incorrect case in insert_inline_extent()	2019-09-09 14:59:00 +02:00
ioctl.c	btrfs: use common vfs LABEL ioctl definitions	2019-09-09 14:58:59 +02:00
locking.c	btrfs: Remove unused locking functions	2019-09-09 14:58:59 +02:00
locking.h	btrfs: Remove unused locking functions	2019-09-09 14:58:59 +02:00
lzo.c	…
math.h	…
ordered-data.c	btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range	2019-07-26 12:21:22 +02:00
ordered-data.h	btrfs: don't assume ordered sums to be 4 bytes	2019-07-01 13:35:00 +02:00
orphan.c	…
print-tree.c	btrfs: switch extent_buffer write_locks from atomic to int	2019-07-02 12:30:47 +02:00
print-tree.h	…
props.c	btrfs: shut up bogus -Wmaybe-uninitialized warning	2019-07-02 12:30:49 +02:00
props.h	btrfs: delete unused function btrfs_set_prop_trans	2019-04-29 19:02:54 +02:00
qgroup.c	btrfs: qgroup: Don't hold qgroup_ioctl_lock in btrfs_qgroup_inherit()	2019-07-02 12:30:48 +02:00
qgroup.h	…
raid56.c	block: remove the i argument to bio_for_each_segment_all	2019-04-30 09:26:13 -06:00
raid56.h	btrfs: constify map parameter for nr_parity_stripes and nr_data_stripes	2019-07-01 13:34:58 +02:00
rcu-string.h	…
reada.c	btrfs: start readahead also in seed devices	2019-06-14 17:33:46 +02:00
ref-verify.c	Wimplicit-fallthrough patches for 5.2-rc1	2019-05-07 12:48:10 -07:00
ref-verify.h	btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod()	2019-04-29 19:02:49 +02:00
relocation.c	btrfs: Remove leftover of in-band dedupe	2019-09-09 14:58:59 +02:00
root-tree.c	btrfs: move the subvolume reservation stuff out of extent-tree.c	2019-07-04 17:26:18 +02:00
scrub.c	btrfs: add mask for all RAID1 types	2019-07-02 12:30:48 +02:00
send.c	Btrfs: fix incremental send failure after deduplication	2019-07-30 18:25:11 +02:00
send.h	…
space-info.c	btrfs: Simplify update of space_info in __reserve_metadata_bytes()	2019-07-02 12:30:53 +02:00
space-info.h	btrfs: unexport can_overcommit	2019-07-02 12:30:53 +02:00
struct-funcs.c	…
super.c	btrfs: move space_info to space-info.h	2019-07-02 12:30:51 +02:00
sysfs.c	for-5.3-tag	2019-07-16 15:12:56 -07:00
sysfs.h	…
transaction.c	Btrfs: fix deadlock between fiemap and transaction commits	2019-07-30 18:25:12 +02:00
transaction.h	Btrfs: fix deadlock between fiemap and transaction commits	2019-07-30 18:25:12 +02:00
tree-checker.c	btrfs: tree-checker: Add ROOT_ITEM check	2019-09-09 14:59:01 +02:00
tree-checker.h	btrfs: get fs_info from eb in btrfs_check_chunk_valid	2019-04-29 19:02:39 +02:00
tree-defrag.c	…
tree-log.c	btrfs: Remove unnecessary check from join_running_log_trans	2019-09-09 14:59:02 +02:00
tree-log.h	btrfs: get fs_info from trans in btrfs_set_log_full_commit	2019-04-29 19:02:41 +02:00
ulist.c	…
ulist.h	…
uuid-tree.c	btrfs: remove unused parameter fs_info from btrfs_extend_item	2019-04-29 19:02:50 +02:00
volumes.c	btrfs: volumes: Remove ENOSPC-prone btrfs_can_relocate()	2019-09-09 14:59:01 +02:00
volumes.h	btrfs: volumes: Unexport find_free_dev_extent_start()	2019-09-09 14:59:00 +02:00
xattr.c	Btrfs: fix failure to persist compression property xattr deletion on fsync	2019-06-17 16:37:17 +02:00
xattr.h	btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter	2019-04-29 19:02:44 +02:00
zlib.c	…
zstd.c	btrfs: correct zstd workspace manager lock to use spin_lock_bh()	2019-05-28 18:54:09 +02:00