Filipe Manana cef7820d6a btrfs: fix missed extent on fsync after dropping extent maps ... When dropping extent maps for a range, through btrfs_drop_extent_cache(), if we find an extent map that starts before our target range and/or ends before the target range, and we are not able to allocate extent maps for splitting that extent map, then we don't fail and simply remove the entire extent map from the inode's extent map tree. This is generally fine, because in case anyone needs to access the extent map, it can just load it again later from the respective file extent item(s) in the subvolume btree. However, if that extent map is new and is in the list of modified extents, then a fast fsync will miss the parts of the extent that were outside our range (that needed to be split), therefore not logging them. Fix that by marking the inode for a full fsync. This issue was introduced after removing BUG_ON()s triggered when the split extent map allocations failed, done by commit 7014cdb493 ("Btrfs: btrfs_drop_extent_cache should never fail"), back in 2012, and the fast fsync path already existed but was very recent. Also, in the case where we could allocate extent maps for the split operations but then fail to add a split extent map to the tree, mark the inode for a full fsync as well. This is not supposed to ever fail, and we assert that, but in case assertions are disabled (CONFIG_BTRFS_ASSERT is not set), it's the correct thing to do to make sure a fast fsync will not miss a new extent. CC: stable@vger.kernel.org # 5.15+ Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2022-09-29 17:08:30 +02:00
..
tests	btrfs: stop tracking failed reads in the I/O tree	2022-09-26 12:28:05 +02:00
acl.c	btrfs: reserve correct number of items for inode creation	2022-05-16 17:03:08 +02:00
async-thread.c	btrfs: simplify WQ_HIGHPRI handling in struct btrfs_workqueue	2022-05-16 17:03:15 +02:00
async-thread.h	btrfs: remove unused typedefs get_extent_t and btrfs_work_func_t	2022-07-25 17:45:36 +02:00
backref.c	btrfs: skip unnecessary extent buffer sharedness checks during fiemap	2022-09-26 12:28:01 +02:00
backref.h	btrfs: skip unnecessary extent buffer sharedness checks during fiemap	2022-09-26 12:28:01 +02:00
block-group.c	btrfs: add the ability to use NO_FLUSH for data reservations	2022-09-29 17:08:28 +02:00
block-group.h	btrfs: move btrfs_full_stripe_locks_tree into block-group.h	2022-09-26 12:28:06 +02:00
block-rsv.c	btrfs: add KCSAN annotations for unlocked access to block_rsv->full	2022-09-26 12:28:02 +02:00
block-rsv.h	btrfs: add KCSAN annotations for unlocked access to block_rsv->full	2022-09-26 12:28:02 +02:00
btrfs_inode.h	btrfs: use a runtime flag to indicate an inode is a free space inode	2022-09-26 12:28:07 +02:00
check-integrity.c	fs/btrfs: Use the enum req_op and blk_opf_t types	2022-07-14 12:14:32 -06:00
check-integrity.h	btrfs: check-integrity: split submit_bio from btrfsic checking	2022-05-16 17:03:12 +02:00
compression.c	btrfs: unify the lock/unlock extent variants	2022-09-26 12:28:05 +02:00
compression.h	for-5.20-tag	2022-08-03 14:54:52 -07:00
ctree.c	btrfs: assert nowait mode is not used for some btree search functions	2022-09-29 17:08:29 +02:00
ctree.h	btrfs: remove stale prototype of btrfs_write_inode	2022-09-29 17:08:29 +02:00
delalloc-space.c	btrfs: add the ability to use NO_FLUSH for data reservations	2022-09-29 17:08:28 +02:00
delalloc-space.h	btrfs: add the ability to use NO_FLUSH for data reservations	2022-09-29 17:08:28 +02:00
delayed-inode.c	btrfs: use delayed items when logging a directory	2022-09-26 12:27:57 +02:00
delayed-inode.h	btrfs: use delayed items when logging a directory	2022-09-26 12:27:57 +02:00
delayed-ref.c	btrfs: switch btrfs_block_rsv::full to bool	2022-07-25 17:45:40 +02:00
delayed-ref.h	btrfs: remove btrfs_delayed_extent_op::is_data	2022-05-16 17:17:31 +02:00
dev-replace.c	btrfs: don't take a bio_counter reference for cloned bios	2022-09-26 12:27:58 +02:00
dev-replace.h	btrfs: add struct declarations in dev-replace.h	2022-09-26 12:28:07 +02:00
dir-item.c	btrfs: use btrfs_for_each_slot in btrfs_search_dir_index_item	2022-05-16 17:03:07 +02:00
discard.c	btrfs: fix typos in comments	2021-06-22 14:11:57 +02:00
discard.h
disk-io.c	btrfs: relax block-group-tree feature dependency checks	2022-09-26 12:28:07 +02:00
disk-io.h	btrfs: relax block-group-tree feature dependency checks	2022-09-26 12:28:07 +02:00
export.c
export.h
extent-io-tree.c	btrfs: remove is_data_inode() checks in extent-io-tree.c	2022-09-26 12:28:05 +02:00
extent-io-tree.h	btrfs: stop tracking failed reads in the I/O tree	2022-09-26 12:28:05 +02:00
extent-tree.c	btrfs: make can_nocow_extent nowait compatible	2022-09-29 17:08:26 +02:00
extent_io.c	btrfs: move end_io_func argument to btrfs_bio_ctrl structure	2022-09-26 12:28:07 +02:00
extent_io.h	btrfs: move extent io tree unrelated prototypes to their appropriate header	2022-09-26 12:28:04 +02:00
extent_map.c	btrfs: replace delete argument with EXTENT_CLEAR_ALL_BITS	2022-09-26 12:28:05 +02:00
extent_map.h	btrfs: defrag: don't use merged extent map for their generation check	2022-02-23 17:43:13 +01:00
file-item.c	btrfs: make can_nocow_extent nowait compatible	2022-09-29 17:08:26 +02:00
file.c	btrfs: fix missed extent on fsync after dropping extent maps	2022-09-29 17:08:30 +02:00
free-space-cache.c	btrfs: replace delete argument with EXTENT_CLEAR_ALL_BITS	2022-09-26 12:28:05 +02:00
free-space-cache.h	btrfs: remove use btrfs_remove_free_space_cache instead of variant	2022-09-26 12:27:58 +02:00
free-space-tree.c	btrfs: get rid of block group caching progress logic	2022-09-26 12:27:58 +02:00
free-space-tree.h
inode-item.c	btrfs: make should_throttle loop local in btrfs_truncate_inode_items	2022-01-07 14:18:25 +01:00
inode-item.h	btrfs: add inode to truncate control	2022-01-07 14:18:24 +01:00
inode.c	btrfs: make btrfs_check_nocow_lock nowait compatible	2022-09-29 17:08:28 +02:00
ioctl.c	btrfs: replace delete argument with EXTENT_CLEAR_ALL_BITS	2022-09-26 12:28:05 +02:00
Kconfig	btrfs: use generic Kconfig option for 256kB page size limit	2022-01-20 08:52:55 +02:00
locking.c	btrfs: implement a nowait option for tree searches	2022-09-26 12:46:42 +02:00
locking.h	btrfs: implement a nowait option for tree searches	2022-09-26 12:46:42 +02:00
lzo.c	btrfs: replace kmap() with kmap_local_page() in lzo.c	2022-07-25 17:45:33 +02:00
Makefile	btrfs: move extent state init and alloc functions to their own file	2022-09-26 12:28:03 +02:00
misc.h	btrfs: convert the io_failure_tree to a plain rb_tree	2022-09-26 12:28:02 +02:00
ordered-data.c	btrfs: add btrfs_try_lock_ordered_range	2022-09-29 17:08:28 +02:00
ordered-data.h	btrfs: add btrfs_try_lock_ordered_range	2022-09-29 17:08:28 +02:00
orphan.c
print-tree.c	btrfs: unify the error handling pattern for read_tree_block()	2022-03-14 13:13:53 +01:00
print-tree.h
props.c	btrfs: remove the unnecessary result variables	2022-09-26 12:28:00 +02:00
props.h	btrfs: move common inode creation code into btrfs_create_new_inode()	2022-05-16 17:03:08 +02:00
qgroup.c	btrfs: qgroup: fix a typo in a comment	2022-09-26 12:28:02 +02:00
qgroup.h	btrfs: introduce BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING to skip qgroup accounting	2022-09-26 12:28:01 +02:00
raid56.c	btrfs: properly abstract the parity raid bio handling	2022-09-26 12:27:59 +02:00
raid56.h	btrfs: properly abstract the parity raid bio handling	2022-09-26 12:27:59 +02:00
rcu-string.h
ref-verify.c	btrfs: stop accessing ->extent_root directly	2022-01-03 15:09:49 +01:00
ref-verify.h
reflink.c	btrfs: replace delete argument with EXTENT_CLEAR_ALL_BITS	2022-09-26 12:28:05 +02:00
reflink.h
relocation.c	btrfs: make can_nocow_extent nowait compatible	2022-09-29 17:08:26 +02:00
root-tree.c	btrfs: simplify error handling at btrfs_del_root_ref()	2022-09-26 12:27:58 +02:00
scrub.c	btrfs: make can_nocow_extent nowait compatible	2022-09-29 17:08:26 +02:00
send.c	btrfs: send: fix failures when processing inodes with no links	2022-09-26 12:27:57 +02:00
send.h	btrfs: send: add support for fs-verity	2022-09-26 12:27:55 +02:00
space-info.c	btrfs: add the ability to use NO_FLUSH for data reservations	2022-09-29 17:08:28 +02:00
space-info.h	btrfs: move btrfs_init_async_reclaim_work prototype to space-info.h	2022-09-26 12:28:06 +02:00
struct-funcs.c	btrfs: remove redundant check in up check_setget_bounds	2022-07-25 17:45:33 +02:00
subpage.c	btrfs: remove extent writepage address space operation	2022-07-25 17:45:37 +02:00
subpage.h	btrfs: make nodesize >= PAGE_SIZE case to reuse the non-subpage routine	2022-05-16 17:03:11 +02:00
super.c	btrfs: relax block-group-tree feature dependency checks	2022-09-26 12:28:07 +02:00
sysfs.c	btrfs: skip subtree scan if it's too high to avoid low stall in btrfs_commit_transaction()	2022-09-26 12:28:01 +02:00
sysfs.h
transaction.c	btrfs: don't init io tree with private data for non-inodes	2022-09-26 12:28:05 +02:00
transaction.h	btrfs: pass btrfs_fs_info for deleting snapshots and cleaner	2022-03-14 13:13:52 +01:00
tree-checker.c	btrfs: tree-checker: check for overlapping extent items	2022-08-17 16:20:25 +02:00
tree-checker.h	btrfs: tree-checker: check extent buffer owner against owner rootid	2022-05-16 17:03:09 +02:00
tree-defrag.c	btrfs: remove unnecessary extent root check in btrfs_defrag_leaves	2022-01-03 15:09:48 +01:00
tree-log.c	btrfs: make can_nocow_extent nowait compatible	2022-09-29 17:08:26 +02:00
tree-log.h	btrfs: use delayed items when logging a directory	2022-09-26 12:27:57 +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: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
verity.c	btrfs: send: add support for fs-verity	2022-09-26 12:27:55 +02:00
volumes.c	btrfs: check superblock to ensure the fs was not modified at thaw time	2022-09-26 12:27:59 +02:00
volumes.h	btrfs: move btrfs_swapfile_pin into volumes.h	2022-09-26 12:28:06 +02:00
xattr.c	btrfs: check if root is readonly while setting security xattr	2022-08-22 18:06:30 +02:00
xattr.h
zlib.c	btrfs: zlib: replace kmap() with kmap_local_page() in zlib_decompress_bio()	2022-07-25 17:45:41 +02:00
zoned.c	btrfs: zoned: refactor device checks in btrfs_check_zoned_mode	2022-09-26 12:28:02 +02:00
zoned.h	btrfs: zoned: activate metadata block group on flush_space	2022-07-25 17:45:42 +02:00
zstd.c	btrfs: zstd: replace kmap() with kmap_local_page()	2022-07-25 17:45:40 +02:00