Filipe Manana 8793ed87b3 btrfs: avoid tree mod log ENOMEM failures when we don't need to log ... When logging tree mod log operations we start by checking, in a lockless manner, if we need to log - if we don't, we just return and do nothing, otherwise we will allocate one or more tree mod log operations and then check again if we need to log. This second check will take the tree mod log lock in write mode if we need to log, otherwise it will do nothing and we just free the allocated memory and return success. We can improve on this by not returning an error in case the memory allocations fail, unless the second check tells us that we actually need to log. That is, if we fail to allocate memory and the second check tells use that we don't need to log, we can just return success and avoid returning -ENOMEM to the caller. Currently tree mod log failures are dealt with either a BUG_ON() or a transaction abort, as tree mod log operations are logged in code paths that modify a b+tree. So just avoid failing with -ENOMEM if we fail to allocate a tree mod log operation unless we actually need to log the operations, that is, if tree_mod_dont_log() returns true. Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2023-06-19 13:59:38 +02:00
..
tests	btrfs: drop gfp from parameter extent state helpers	2023-06-19 13:59:30 +02:00
accessors.c	btrfs: add eb to btrfs_node_key_ptr_offset	2022-12-05 18:00:58 +01:00
accessors.h	btrfs: add stack helpers for a few btrfs items	2022-12-05 18:00:58 +01:00
acl.c	fs: port acl to mnt_idmap	2023-01-19 09:24:28 +01:00
acl.h	fs: port ->set_acl() to pass mnt_idmap	2023-01-19 09:24:27 +01:00
async-thread.c	btrfs: use alloc_ordered_workqueue() to create ordered workqueues	2023-06-19 13:59:30 +02:00
async-thread.h	btrfs: use alloc_ordered_workqueue() to create ordered workqueues	2023-06-19 13:59:30 +02:00
backref.c	btrfs: fix backref walking not returning all inode refs	2023-05-09 22:09:11 +02:00
backref.h	btrfs: fix backref walking not returning all inode refs	2023-05-09 22:09:11 +02:00
bio.c	btrfs: add an ordered_extent pointer to struct btrfs_bio	2023-06-19 13:59:36 +02:00
bio.h	btrfs: add an ordered_extent pointer to struct btrfs_bio	2023-06-19 13:59:36 +02:00
block-group.c	btrfs: reinsert BGs failed to reclaim	2023-06-19 13:59:38 +02:00
block-group.h	btrfs: update documentation for a block group's bg_list member	2023-06-19 13:59:38 +02:00
block-rsv.c	btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c	2023-06-19 13:59:24 +02:00
block-rsv.h	btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c	2023-06-19 13:59:24 +02:00
btrfs_inode.h	btrfs: defer splitting of ordered extents until I/O completion	2023-06-19 13:59:33 +02:00
check-integrity.c	btrfs: rename __btrfs_map_block to btrfs_map_block	2023-06-19 13:59:34 +02:00
check-integrity.h	btrfs: check-integrity: split submit_bio from btrfsic checking	2022-05-16 17:03:12 +02:00
compression.c	btrfs: use btrfs_finish_ordered_extent to complete compressed writes	2023-06-19 13:59:37 +02:00
compression.h	btrfs: pass an ordered_extent to btrfs_submit_compressed_write	2023-06-19 13:59:36 +02:00
ctree.c	btrfs: fix extent buffer leak after tree mod log failure at split_node()	2023-06-19 13:59:38 +02:00
ctree.h	btrfs: rename del_ptr to btrfs_del_ptr and export it	2023-06-19 13:59:25 +02:00
defrag.c	btrfs: drop gfp from parameter extent state helpers	2023-06-19 13:59:30 +02:00
defrag.h	btrfs: move defrag related prototypes to their own header	2022-12-05 18:00:46 +01:00
delalloc-space.c	btrfs: count extents before taking inode's spinlock when reserving metadata	2023-04-17 18:01:19 +02:00
delalloc-space.h	btrfs: move delalloc space related prototypes to delalloc-space.h	2022-12-05 18:00:44 +01:00
delayed-inode.c	btrfs: handle btrfs_del_item errors in __btrfs_update_delayed_inode	2023-03-06 19:28:19 +01:00
delayed-inode.h	btrfs: extend btrfs_dir_item type to store encryption status	2022-12-05 18:00:43 +01:00
delayed-ref.c	btrfs: use a single switch statement when initializing delayed ref head	2023-06-19 13:59:32 +02:00
delayed-ref.h	btrfs: use bool type for delayed ref head fields that are used as booleans	2023-06-19 13:59:32 +02:00
dev-replace.c	btrfs: rename __btrfs_map_block to btrfs_map_block	2023-06-19 13:59:34 +02:00
dev-replace.h	btrfs: move dev-replace prototypes into dev-replace.h	2022-12-05 18:00:47 +01:00
dir-item.c	btrfs: move dir-item prototypes into dir-item.h	2022-12-05 18:00:46 +01:00
dir-item.h	btrfs: move dir-item prototypes into dir-item.h	2022-12-05 18:00:46 +01:00
discard.c	btrfs: unexport btrfs_run_discard_work and make it static	2023-06-19 13:59:25 +02:00
discard.h	btrfs: unexport btrfs_run_discard_work and make it static	2023-06-19 13:59:25 +02:00
disk-io.c	btrfs: add xxhash to fast checksum implementations	2023-06-19 13:59:33 +02:00
disk-io.h	btrfs: use a separate end_io handler for read_extent_buffer	2023-06-19 13:59:27 +02:00
export.c	btrfs: move super_block specific helpers into super.h	2022-12-05 18:00:47 +01:00
export.h	btrfs: simplify generation check in btrfs_get_dentry	2022-12-05 18:00:41 +01:00
extent_io.c	btrfs: use btrfs_finish_ordered_extent to complete buffered writes	2023-06-19 13:59:37 +02:00
extent_io.h	btrfs: don't treat zoned writeback as being from an async helper thread	2023-06-19 13:59:35 +02:00
extent_map.c	btrfs: pass the new logical address to split_extent_map	2023-06-19 13:59:33 +02:00
extent_map.h	btrfs: pass the new logical address to split_extent_map	2023-06-19 13:59:33 +02:00
extent-io-tree.c	btrfs: drop gfp from parameter extent state helpers	2023-06-19 13:59:30 +02:00
extent-io-tree.h	btrfs: drop gfp from parameter extent state helpers	2023-06-19 13:59:30 +02:00
extent-tree.c	btrfs: use bool type for delayed ref head fields that are used as booleans	2023-06-19 13:59:32 +02:00
extent-tree.h	btrfs: remove level argument from btrfs_set_block_flags	2023-06-19 13:59:24 +02:00
file-item.c	btrfs: use bbio->ordered in btrfs_csum_one_bio	2023-06-19 13:59:37 +02:00
file-item.h	btrfs: optimize the logical to physical mapping for zoned writes	2023-06-19 13:59:32 +02:00
file.c	btrfs: set FMODE_CAN_ODIRECT instead of a dummy direct_IO method	2023-06-19 13:59:38 +02:00
file.h	btrfs: use cached state when looking for delalloc ranges with fiemap	2022-12-05 18:00:56 +01:00
free-space-cache.c	btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c	2023-06-19 13:59:24 +02:00
free-space-cache.h	btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c	2023-06-19 13:59:24 +02:00
free-space-tree.c	btrfs: make clear_cache mount option to rebuild FST without disabling it	2023-05-10 14:51:27 +02:00
free-space-tree.h	btrfs: make clear_cache mount option to rebuild FST without disabling it	2023-05-10 14:51:27 +02:00
fs.c	btrfs: sysfs: update fs features directory asynchronously	2023-02-13 17:50:35 +01:00
fs.h	btrfs: optimize out btrfs_is_zoned for !CONFIG_BLK_DEV_ZONED	2023-06-19 13:59:32 +02:00
inode-item.c	btrfs: remove obsolete delayed ref throttling logic when truncating items	2023-04-17 18:01:19 +02:00
inode-item.h	btrfs: move split_flags/combine_flags helpers to inode-item.h	2023-06-19 13:59:25 +02:00
inode.c	btrfs: set FMODE_CAN_ODIRECT instead of a dummy direct_IO method	2023-06-19 13:59:38 +02:00
ioctl.c	btrfs: trigger orphan inode cleanup during START_SYNC ioctl	2023-06-19 13:59:26 +02:00
ioctl.h	fs: port ->fileattr_set() to pass mnt_idmap	2023-01-19 09:24:27 +01:00
Kconfig	block: make blkcg_punt_bio_submit optional	2023-04-17 18:01:22 +02:00
locking.c	btrfs: add block-group tree to lockdep classes	2023-06-19 13:59:35 +02:00
locking.h	btrfs: locking: use atomic for DREW lock writers	2023-04-17 18:01:17 +02:00
lru_cache.c	btrfs: send: cache utimes operations for directories if possible	2023-02-15 19:38:50 +01:00
lru_cache.h	btrfs: remove btrfs_lru_cache_is_full() inline function	2023-04-17 18:01:18 +02:00
lzo.c	btrfs: disable allocation warnings for compression workspaces	2023-06-19 13:59:34 +02:00
Makefile	btrfs: send: genericize the backref cache to allow it to be reused	2023-02-13 17:50:35 +01:00
messages.c	btrfs: print assertion failure report and stack trace from the same line	2023-06-19 13:59:31 +02:00
messages.h	btrfs: print assertion failure report and stack trace from the same line	2023-06-19 13:59:31 +02:00
misc.h	btrfs: export bitmap_test_range_all_{set,zero}	2023-06-19 13:59:22 +02:00
ordered-data.c	btrfs: add a btrfs_finish_ordered_extent helper	2023-06-19 13:59:37 +02:00
ordered-data.h	btrfs: add a btrfs_finish_ordered_extent helper	2023-06-19 13:59:37 +02:00
orphan.c	btrfs: move orphan prototypes into orphan.h	2022-12-05 18:00:47 +01:00
orphan.h	btrfs: move orphan prototypes into orphan.h	2022-12-05 18:00:47 +01:00
print-tree.c	btrfs: print-tree: pass const extent buffer pointer	2023-06-19 13:59:22 +02:00
print-tree.h	btrfs: print-tree: pass const extent buffer pointer	2023-06-19 13:59:22 +02:00
props.c	btrfs: move super_block specific helpers into super.h	2022-12-05 18:00:47 +01:00
props.h	btrfs: make module init/exit match their sequence	2022-12-05 18:00:40 +01:00
qgroup.c	btrfs: fix race between quota disable and quota assign ioctls	2023-03-28 00:46:53 +02:00
qgroup.h	btrfs: sink gfp_t parameter to btrfs_qgroup_trace_extent	2022-12-05 18:00:43 +01:00
raid56.c	btrfs: scrub: use recovered data stripes as cache to avoid unnecessary read	2023-06-19 13:59:24 +02:00
raid56.h	btrfs: scrub: use recovered data stripes as cache to avoid unnecessary read	2023-06-19 13:59:24 +02:00
rcu-string.h	btrfs: replace strncpy() with strscpy()	2022-12-05 18:00:59 +01:00
ref-verify.c	btrfs: move accessor helpers into accessors.h	2022-12-05 18:00:42 +01:00
ref-verify.h
reflink.c	btrfs: pass btrfs_inode to btrfs_inode_unlock	2022-12-05 18:00:53 +01:00
reflink.h
relocation.c	btrfs: pass an ordered_extent to btrfs_reloc_clone_csums	2023-06-19 13:59:36 +02:00
relocation.h	btrfs: pass an ordered_extent to btrfs_reloc_clone_csums	2023-06-19 13:59:36 +02:00
root-tree.c	btrfs: move orphan prototypes into orphan.h	2022-12-05 18:00:47 +01:00
root-tree.h	btrfs: move root tree prototypes to their own header	2022-12-05 18:00:44 +01:00
scrub.c	btrfs: open code btrfs_map_sblock	2023-06-19 13:59:34 +02:00
scrub.h	btrfs: scrub: remove scrub_bio structure	2023-04-17 18:01:24 +02:00
send.c	btrfs: fix uninitialized variable warnings	2023-04-17 19:52:19 +02:00
send.h	btrfs: send add define for v2 buffer size	2022-12-05 18:00:41 +01:00
space-info.c	btrfs: add helper to calculate space for delayed references	2023-04-17 18:01:19 +02:00
space-info.h	btrfs: update documentation for BTRFS_RESERVE_FLUSH_EVICT flush method	2023-04-17 18:01:18 +02:00
subpage.c	btrfs: stop setting PageError in the data I/O path	2023-06-19 13:59:35 +02:00
subpage.h	btrfs: stop setting PageError in the data I/O path	2023-06-19 13:59:35 +02:00
super.c	btrfs: remove hipri_workers workqueue	2023-06-19 13:59:23 +02:00
super.h	btrfs: move super_block specific helpers into super.h	2022-12-05 18:00:47 +01:00
sysfs.c	btrfs: sysfs: relax bg_reclaim_threshold for debugging purposes	2023-04-17 18:01:18 +02:00
sysfs.h	btrfs: sysfs: update fs features directory asynchronously	2023-02-13 17:50:35 +01:00
transaction.c	btrfs: don't hold an extra reference for redirtied buffers	2023-06-19 13:59:26 +02:00
transaction.h	btrfs: don't hold an extra reference for redirtied buffers	2023-06-19 13:59:26 +02:00
tree-checker.c	btrfs: move split_flags/combine_flags helpers to inode-item.h	2023-06-19 13:59:25 +02:00
tree-checker.h	btrfs: move btrfs_verify_level_key into tree-checker.c	2023-06-19 13:59:25 +02:00
tree-log.c	btrfs: rename the bytenr field in struct btrfs_ordered_sum to logical	2023-06-19 13:59:32 +02:00
tree-log.h	btrfs: change for_rename argument of btrfs_record_unlink_dir() to bool	2023-06-19 13:59:26 +02:00
tree-mod-log.c	btrfs: avoid tree mod log ENOMEM failures when we don't need to log	2023-06-19 13:59:38 +02:00
tree-mod-log.h	btrfs: fix SPDX comment in tree-mod-log.h	2022-12-05 18:00:48 +01:00
ulist.c	btrfs: constify ulist parameter of ulist_next()	2022-12-05 18:00:50 +01:00
ulist.h	btrfs: constify ulist parameter of ulist_next()	2022-12-05 18:00:50 +01:00
uuid-tree.c	btrfs: move uuid tree prototypes to uuid-tree.h	2022-12-05 18:00:46 +01:00
uuid-tree.h	btrfs: move uuid tree prototypes to uuid-tree.h	2022-12-05 18:00:46 +01:00
verity.c	fsverity: pass pos and size to ->write_merkle_tree_block	2023-01-01 15:46:48 -08:00
verity.h	btrfs: move verity prototypes into verity.h	2022-12-05 18:00:47 +01:00
volumes.c	btrfs: open code need_full_stripe conditions	2023-06-19 13:59:34 +02:00
volumes.h	btrfs: open code btrfs_map_sblock	2023-06-19 13:59:34 +02:00
xattr.c	fs: drop unused posix acl handlers	2023-03-06 09:57:12 +01:00
xattr.h
zlib.c	btrfs: disable allocation warnings for compression workspaces	2023-06-19 13:59:34 +02:00
zoned.c	btrfs: open code btrfs_map_sblock	2023-06-19 13:59:34 +02:00
zoned.h	btrfs: defer splitting of ordered extents until I/O completion	2023-06-19 13:59:33 +02:00
zstd.c	btrfs: disable allocation warnings for compression workspaces	2023-06-19 13:59:34 +02:00