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5811375325
linux/fs/btrfs
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Liu Bo 5811375325 Btrfs: fix unexpected cow in run_delalloc_nocow 
Fstests generic/475 provides a way to fail metadata reads while
checking if checksum exists for the inode inside run_delalloc_nocow(),
and csum_exist_in_range() interprets error (-EIO) as inode having
checksum and makes its caller enter the cow path.

In case of free space inode, this ends up with a warning in
cow_file_range().

The same problem applies to btrfs_cross_ref_exist() since it may also
read metadata in between.

With this, run_delalloc_nocow() bails out when errors occur at the two
places.

cc: <stable@vger.kernel.org> v2.6.28+
Fixes: 17d217fe97 ("Btrfs: fix nodatasum handling in balancing code")
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2018-03-26 15:09:39 +02:00
..
tests Btrfs: extent map selftest: add missing void parameter to btrfs_test_extent_map 2018-03-26 15:09:29 +02:00
acl.c btrfs: preserve i_mode if __btrfs_set_acl() fails 2017-08-21 17:47:42 +02:00
async-thread.c Btrfs: fix confusing worker helper info in stacktrace 2017-10-30 12:27:57 +01:00
async-thread.h btrfs: constify tracepoint arguments 2017-08-16 14:19:53 +02:00
backref.c btrfs: add missing initialization in btrfs_check_shared 2018-03-14 22:26:46 +01:00
backref.h btrfs: add a flag to iterate_inodes_from_logical to find all extent refs for uncompressed extents 2017-11-01 20:45:34 +01:00
btrfs_inode.h btrfs: Remove btrfs_inode::delayed_iput_count 2018-03-26 15:09:37 +02:00
check-integrity.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
check-integrity.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
compression.c for-4.16-tag 2018-01-29 14:04:23 -08:00
compression.h btrfs: compression: add helper for type to string conversion 2018-01-22 16:08:16 +01:00
ctree.c btrfs: Improve btrfs_search_slot description 2018-01-22 16:08:19 +01:00
ctree.h btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
dedupe.h btrfs: expand cow_file_range() to support in-band dedup and subpage-blocksize 2016-07-26 13:52:25 +02:00
delayed-inode.c btrfs: Don't pass fs_info to btrfs_run_delayed_items/_nr 2018-03-26 15:09:31 +02:00
delayed-inode.h btrfs: Don't pass fs_info to btrfs_run_delayed_items/_nr 2018-03-26 15:09:31 +02:00
delayed-ref.c btrfs: Ignore errors from btrfs_qgroup_trace_extent_post 2018-02-02 16:25:14 +01:00
delayed-ref.h Btrfs: add __init macro to btrfs init functions 2018-01-22 16:08:11 +01:00
dev-replace.c btrfs: log, when replace, is canceled by the user 2018-03-26 15:09:34 +02:00
dev-replace.h btrfs: btrfs_dev_replace_cancel() can return int 2018-03-26 15:09:30 +02:00
dir-item.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
disk-io.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
disk-io.h btrfs: remove unused function btrfs_async_submit_limit() 2018-03-26 15:09:35 +02:00
export.c btrfs: Cleanup existing name_len checks 2018-01-22 16:08:12 +01:00
export.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
extent_io.c btrfs: extent_buffer_uptodate() make it static and inline 2018-03-26 15:09:33 +02:00
extent_io.h btrfs: extent_buffer_uptodate() make it static and inline 2018-03-26 15:09:33 +02:00
extent_map.c Btrfs: add tracepoint for em's EEXIST case 2018-03-26 15:09:38 +02:00
extent_map.h Btrfs: move extent map specific code to extent_map.c 2018-01-22 16:08:22 +01:00
extent-tree.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
file-item.c Merge branch 'for-4.13-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux 2017-07-05 16:41:23 -07:00
file.c for-4.16-tag 2018-01-29 14:04:23 -08:00
free-space-cache.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-01-31 14:31:10 -08:00
free-space-cache.h btrfs: free-space-cache, clean up unnecessary root arguments 2017-02-17 12:03:56 +01:00
free-space-tree.c btrfs: use reada direction enum instead of constant value in load_free_space_tree 2018-03-26 15:09:37 +02:00
free-space-tree.h btrfs: expose internal free space tree routine only if sanity tests are enabled 2017-08-18 16:36:29 +02:00
inode-item.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
inode-map.c Btrfs: rework outstanding_extents 2017-11-01 20:45:35 +01:00
inode-map.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
inode.c Btrfs: fix unexpected cow in run_delalloc_nocow 2018-03-26 15:09:39 +02:00
ioctl.c btrfs: rename __btrfs_dev_replace_cancel() 2018-03-26 15:09:30 +02:00
Kconfig btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
locking.c btrfs: cleanup, remove stray return statements 2016-01-07 14:30:52 +01:00
locking.h
lzo.c btrfs: allow to set compression level for zlib 2017-11-01 20:45:29 +01:00
Makefile btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
math.h
ordered-data.c Btrfs: rework outstanding_extents 2017-11-01 20:45:35 +01:00
ordered-data.h btrfs: Don't hardcode the csum size in btrfs_ordered_sum_size 2018-03-26 15:09:29 +02:00
orphan.c
print-tree.c Btrfs: add one more sanity check for shared ref type 2017-08-21 17:47:43 +02:00
print-tree.h btrfs: get fs_info from eb in btrfs_print_tree, remove argument 2017-08-16 16:12:03 +02:00
props.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
props.h
qgroup.c btrfs: Move qgroup rescan on quota enable to btrfs_quota_enable 2018-03-26 15:09:38 +02:00
qgroup.h btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges 2017-06-29 20:17:02 +02:00
raid56.c btrfs: Fix NULL pointer exception in find_bio_stripe 2018-03-14 22:26:35 +01:00
raid56.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
rcu-string.h
reada.c btrfs: remove unused member err from reada_extent 2017-06-19 18:25:59 +02:00
ref-verify.c btrfs: ref-verify: Remove unused parameter from walk_up_tree() to kill warning 2018-01-22 16:08:13 +01:00
ref-verify.h Btrfs: add a extent ref verify tool 2017-10-30 12:28:00 +01:00
relocation.c btrfs: Handle btrfs_set_extent_delalloc failure in relocate_file_extent_cluster 2018-03-01 16:16:12 +01:00
root-tree.c btrfs: Cleanup existing name_len checks 2018-01-22 16:08:12 +01:00
scrub.c btrfs: not a disk error if the bio_add_page fails 2018-03-26 15:09:36 +02:00
send.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
send.h btrfs: fix send ioctl on 32bit with 64bit kernel 2017-10-30 12:27:59 +01:00
struct-funcs.c btrfs: struct-funcs, constify readers 2017-08-16 14:19:53 +02:00
super.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
sysfs.c Revert "btrfs: use proper endianness accessors for super_copy" 2018-03-16 14:49:44 +01:00
sysfs.h Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux 2017-11-14 13:35:29 -08:00
transaction.c btrfs: Move error handling of btrfs_start_dirty_block_groups closer to call site 2018-03-26 15:09:36 +02:00
transaction.h btrfs: Document consistency of transaction->io_bgs list 2018-03-26 15:09:34 +02:00
tree-checker.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
tree-checker.h btrfs: tree-checker: Replace root parameter with fs_info 2018-03-26 15:09:38 +02:00
tree-defrag.c Btrfs: fix locking bugs when defragging leaves 2015-12-18 02:51:32 +00:00
tree-log.c btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
tree-log.h btrfs: Make btrfs_del_inode_ref take btrfs_inode 2017-02-14 15:50:54 +01:00
ulist.c btrfs: ulist: rename ulist_fini to ulist_release 2017-02-17 12:03:50 +01:00
ulist.h btrfs: ulist: rename ulist_fini to ulist_release 2017-02-17 12:03:50 +01:00
uuid-tree.c btrfs: return the actual error value from from btrfs_uuid_tree_iterate 2016-12-19 18:08:15 +01:00
volumes.c btrfs: Refactor __get_raid_index() to btrfs_bg_flags_to_raid_index() 2018-03-26 15:09:38 +02:00
volumes.h btrfs: Refactor __get_raid_index() to btrfs_bg_flags_to_raid_index() 2018-03-26 15:09:38 +02:00
xattr.c for-4.16-tag 2018-01-29 14:04:23 -08:00
xattr.h btrfs: Switch to generic xattr handlers 2016-05-17 19:17:09 -04:00
zlib.c btrfs: allow to set compression level for zlib 2017-11-01 20:45:29 +01:00
zstd.c btrfs: move some zstd work data from stack to workspace 2018-01-22 16:08:14 +01:00