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f78743fbda
linux/fs/btrfs
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Josef Bacik f78743fbda btrfs: do not warn if we can't find the reloc root when looking up backref 
The backref code is looking for a reloc_root that corresponds to the
given fs root.  However any number of things could have gone wrong while
initializing that reloc_root, like ENOMEM while trying to allocate the
root itself, or EIO while trying to write the root item.  This would
result in no corresponding reloc_root being in the reloc root cache, and
thus would return NULL when we do the find_reloc_root() call.

Because of this we do not want to WARN_ON().  This presumably was meant
to catch developer errors, cases where we messed up adding the reloc
root.  However we can easily hit this case with error injection, and
thus should not do a WARN_ON().

CC: stable@vger.kernel.org # 5.10+
Reported-by: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2021-02-08 22:58:56 +01:00
..
tests btrfs: tests: initialize test inodes location 2020-12-18 14:59:49 +01:00
acl.c
async-thread.c
async-thread.h
backref.c btrfs: do not warn if we can't find the reloc root when looking up backref 2021-02-08 22:58:56 +01:00
backref.h btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE 2020-05-25 11:25:35 +02:00
block-group.c btrfs: splice remaining dirty_bg's onto the transaction dirty bg list 2021-02-08 22:58:55 +01:00
block-group.h btrfs: load free space cache asynchronously 2020-12-08 15:54:03 +01:00
block-rsv.c btrfs: introduce mount option rescue=ignorebadroots 2020-12-08 15:53:41 +01:00
block-rsv.h
btrfs_inode.h btrfs: make btrfs_dio_private::bytes u32 2021-02-08 22:58:51 +01:00
check-integrity.c btrfs: drop casts of bio bi_sector 2020-12-09 19:16:05 +01:00
check-integrity.h
compression.c btrfs: refactor btrfs_lookup_bio_sums to handle out-of-order bvecs 2020-12-09 19:16:11 +01:00
compression.h btrfs: compression: move declarations to header 2020-10-07 12:06:55 +02:00
ctree.c btrfs: allow error injection for btrfs_search_slot and btrfs_cow_block 2021-02-08 22:58:50 +01:00
ctree.h btrfs: make btrfs_start_delalloc_root's nr argument a long 2021-02-08 22:58:51 +01:00
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 btrfs: make btrfs_delalloc_reserve_space take btrfs_inode 2020-07-27 12:55:36 +02:00
delayed-inode.c btrfs: make btrfs_delayed_update_inode take btrfs_inode 2020-12-08 15:54:10 +01:00
delayed-inode.h btrfs: make btrfs_delayed_update_inode take btrfs_inode 2020-12-08 15:54:10 +01:00
delayed-ref.c btrfs: account for new extents being deleted in total_bytes_pinned 2021-02-08 22:58:55 +01:00
delayed-ref.h btrfs: handle space_info::total_bytes_pinned inside the delayed ref itself 2021-02-08 22:58:55 +01:00
dev-replace.c btrfs: make btrfs_start_delalloc_root's nr argument a long 2021-02-08 22:58:51 +01:00
dev-replace.h
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: make btrfs_root::free_objectid hold the next available objectid 2021-02-08 22:58:50 +01:00
disk-io.h btrfs: rename btrfs_find_free_objectid to btrfs_get_free_objectid 2021-02-08 22:58:49 +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: remove repeated word in struct member comment 2021-02-08 22:58:55 +01:00
extent_io.h btrfs: update num_extent_pages to support subpage sized extent buffer 2020-12-09 19:16:10 +01:00
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: account for new extents being deleted in total_bytes_pinned 2021-02-08 22:58:55 +01:00
file-item.c btrfs: fix function description formats in file-item.c 2021-02-08 22:58:53 +01:00
file.c btrfs: update comment for btrfs_dirty_pages 2021-02-08 22:58:52 +01:00
free-space-cache.c btrfs: improve parameter description for __btrfs_write_out_cache 2021-02-08 22:58:53 +01:00
free-space-cache.h btrfs: remove free space items when disabling space cache v1 2020-12-09 19:16:09 +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: fix description format of fs_info of btrfs_wait_on_delayed_iputs 2021-02-08 22:58:54 +01:00
ioctl.c btrfs: make btrfs_start_delalloc_root's nr argument a long 2021-02-08 22:58:51 +01:00
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
Makefile btrfs: enable W=1 checks for btrfs 2021-02-08 22:58:55 +01:00
misc.h
ordered-data.c btrfs: rework the order of btrfs_ordered_extent::flags 2021-02-08 22:58:52 +01:00
ordered-data.h btrfs: rework the order of btrfs_ordered_extent::flags 2021-02-08 22:58:52 +01:00
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 btrfs: simplify iget helpers 2020-05-25 11:25:37 +02:00
props.h
qgroup.c btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan 2020-12-18 14:59:57 +01:00
qgroup.h btrfs: qgroup: export qgroups in sysfs 2020-07-27 12:55:37 +02:00
raid56.c btrfs: remove redundant NULL check before kvfree 2021-02-08 22:58:52 +01:00
raid56.h
rcu-string.h
reada.c btrfs: pass the owner_root and level to alloc_extent_buffer 2020-12-08 15:54:07 +01:00
ref-verify.c btrfs: ref-verify: make sure owner is set for all refs 2021-02-08 22:58:50 +01:00
ref-verify.h
reflink.c btrfs: fix deadlock when cloning inline extent and low on free metadata space 2020-12-18 14:49:50 +01:00
reflink.h
relocation.c btrfs: fix reloc root leak with 0 ref reloc roots on recovery 2021-02-08 22:58:55 +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: allow scrub to work with subpage sectorsize 2020-12-09 19:16:11 +01:00
send.c btrfs: send: remove stale code when checking for shared extents 2021-02-08 22:58:51 +01:00
send.h btrfs: send: avoid copying file data 2020-10-07 12:13:17 +02:00
space-info.c btrfs: fix parameter description in space-info.c 2021-02-08 22:58:54 +01:00
space-info.h btrfs: handle space_info::total_bytes_pinned inside the delayed ref itself 2021-02-08 22:58:55 +01:00
struct-funcs.c btrfs: handle sectorsize < PAGE_SIZE case for extent buffer accessors 2020-12-09 19:16:10 +01:00
super.c btrfs: run delayed iputs when remounting RO to avoid leaking them 2020-12-18 15:00:08 +01:00
sysfs.c for-5.11/block-2020-12-14 2020-12-16 12:57:51 -08:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: rename btrfs_find_free_objectid to btrfs_get_free_objectid 2021-02-08 22:58:49 +01:00
transaction.h btrfs: return bool from btrfs_should_end_transaction 2020-12-08 15:54:16 +01:00
tree-checker.c btrfs: tree-checker: check if chunk item end overflows 2021-01-07 17:25:05 +01:00
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: rename btrfs_find_highest_objectid to btrfs_init_root_free_objectid 2021-02-08 22:58:49 +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 btrfs: remove unnecessary casts in printk 2020-12-08 15:53:52 +01:00
volumes.c btrfs: consolidate btrfs_previous_item ret val handling in btrfs_shrink_device 2021-02-08 22:58:51 +01:00
volumes.h btrfs: fix lockdep warning due to seqcount_mutex on 32bit arch 2021-01-25 18:44:50 +01:00
xattr.c btrfs: skip unnecessary searches for xattrs when logging an inode 2020-12-08 15:54:12 +01:00
xattr.h
zlib.c
zoned.c btrfs: zoned: remove unused variable in btrfs_sb_log_location_bdev 2021-02-08 22:58:54 +01:00
zoned.h btrfs: implement log-structured superblock for ZONED mode 2020-12-09 19:16:04 +01:00
zstd.c