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8103d10b71
linux/fs/btrfs
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Nikolay Borisov 8103d10b71 btrfs: Always trim all unallocated space in btrfs_trim_free_extents 
This patch removes support for range parameters of FITRIM ioctl when
trimming unallocated space on devices. This is necessary since ranges
passed from user space are generally interpreted as logical addresses,
whereas btrfs_trim_free_extents used to interpret them as device
physical extents. This could result in counter-intuitive behavior for
users so it's best to remove that support altogether.

Additionally, the existing range support had a bug where if an offset
was passed to FITRIM which overflows u64 e.g. -1 (parsed as u64
18446744073709551615) then wrong data was fed into btrfs_issue_discard,
which in turn leads to wrap-around when aligning the passed range and
results in wrong regions being discarded which leads to data corruption.

Fixes: c2d1b3aae3 ("btrfs: Honour FITRIM range constraints during free space trim")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-06-07 14:52:05 +02:00
..
tests btrfs: get fs_info from block group in search_free_space_info 2019-04-29 19:02:46 +02:00
acl.c btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter 2019-04-29 19:02:44 +02:00
async-thread.c btrfs: simplify workqueue name when allocating 2019-02-25 14:13:24 +01:00
async-thread.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
backref.c Btrfs: do not start a transaction during fiemap 2019-04-29 19:02:51 +02:00
backref.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
btrfs_inode.h Btrfs: improve performance on fsync of files with multiple hardlinks 2019-04-29 19:02:52 +02:00
check-integrity.c btrfs: Fix typos in comments and strings 2018-12-17 14:51:50 +01:00
check-integrity.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
compression.c btrfs: Check the compression level before getting a workspace 2019-05-03 18:21:25 +02:00
compression.h btrfs: change set_level() to bound the level passed in 2019-02-25 14:13:32 +01:00
ctree.c btrfs: ctree: Dump the leaf before BUG_ON in btrfs_set_item_key_safe 2019-04-29 19:02:52 +02:00
ctree.h btrfs: track DIO bytes in flight 2019-04-29 19:25:37 +02:00
dedupe.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
delayed-inode.c btrfs: get fs_info from eb in btrfs_leaf_free_space 2019-04-29 19:02:30 +02:00
delayed-inode.h Btrfs: delayed-inode: use rb_first_cached for ins_root and del_root 2018-10-15 17:23:33 +02:00
delayed-ref.c btrfs: remove unused parameter fs_info from btrfs_add_delayed_extent_op 2019-04-29 19:02:51 +02:00
delayed-ref.h btrfs: remove unused parameter fs_info from btrfs_add_delayed_extent_op 2019-04-29 19:02:51 +02:00
dev-replace.c btrfs: Ensure replaced device doesn't have pending chunk allocation 2019-05-28 18:54:00 +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: track DIO bytes in flight 2019-04-29 19:25:37 +02:00
disk-io.h btrfs: get fs_info from trans in btrfs_create_tree 2019-04-29 19:02:41 +02:00
export.c btrfs: Remove 'objectid' member from struct btrfs_root 2018-10-15 17:23:25 +02:00
export.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
extent_io.c btrfs: remove unused parameter fs_info from emit_last_fiemap_cache 2019-04-29 19:02:51 +02:00
extent_io.h btrfs: Remove bio_offset argument from submit_bio_hook 2019-04-29 19:02:47 +02:00
extent_map.c btrfs: Optimize unallocated chunks discard 2019-04-29 19:02:38 +02:00
extent_map.h btrfs: Remove impossible condition from mergable_maps 2019-02-25 14:13:21 +01:00
extent-tree.c btrfs: Always trim all unallocated space in btrfs_trim_free_extents 2019-06-07 14:52:05 +02:00
file-item.c btrfs: Document btrfs_csum_one_bio 2019-04-29 19:02:52 +02:00
file.c Btrfs: fix race between ranged fsync and writeback of adjacent ranges 2019-05-16 14:31:13 +02:00
free-space-cache.c btrfs: get fs_info from block group in btrfs_find_space_cluster 2019-04-29 19:02:46 +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: prune unused includes 2018-08-06 13:12:43 +02:00
inode-map.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
inode.c Btrfs: fix wrong ctime and mtime of a directory after log replay 2019-05-28 19:16:16 +02:00
ioctl.c btrfs: drop local copy of inode i_mode 2019-04-29 19:02:53 +02:00
Kconfig btrfs: add SPDX header to Kconfig 2018-04-12 16:29:55 +02:00
locking.c btrfs: trace: Introduce trace events for all btrfs tree locking events 2019-04-29 19:02:43 +02:00
locking.h btrfs: merge btrfs_set_lock_blocking_rw with it's caller 2019-02-25 14:13:28 +01:00
lzo.c btrfs: change set_level() to bound the level passed in 2019-02-25 14:13:32 +01:00
Makefile btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
math.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
ordered-data.c btrfs: track DIO bytes in flight 2019-04-29 19:25:37 +02:00
ordered-data.h btrfs: Remove redundant inode argument from btrfs_add_ordered_sum 2019-04-29 19:02:40 +02:00
orphan.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
print-tree.c btrfs: get fs_info from eb in btrfs_leaf_free_space 2019-04-29 19:02:30 +02:00
print-tree.h btrfs: print-tree: debugging output enhancement 2018-04-20 19:18:16 +02:00
props.c btrfs: use the existing reserved items for our first prop for inheritance 2019-05-09 11:18:14 +02:00
props.h btrfs: delete unused function btrfs_set_prop_trans 2019-04-29 19:02:54 +02:00
qgroup.c btrfs: qgroup: Check bg while resuming relocation to avoid NULL pointer dereference 2019-05-28 18:54:10 +02:00
qgroup.h btrfs: qgroup: Move reserved data accounting from btrfs_delayed_ref_head to btrfs_qgroup_extent_record 2019-02-25 14:13:39 +01:00
raid56.c for-5.1-rc2-tag 2019-03-26 10:32:13 -07:00
raid56.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
rcu-string.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
reada.c btrfs: dev-replace: open code trivial locking helpers 2018-12-17 14:51:45 +01:00
ref-verify.c btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod() 2019-04-29 19:02:49 +02:00
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: reloc: Also queue orphan reloc tree for cleanup to avoid BUG_ON() 2019-05-28 18:54:10 +02:00
root-tree.c Btrfs: do not abort transaction at btrfs_update_root() after failure to COW path 2019-05-09 11:25:27 +02:00
scrub.c btrfs: get fs_info from device in btrfs_scrub_cancel_dev 2019-04-29 19:02:47 +02:00
send.c Btrfs: incremental send, fix emission of invalid clone operations 2019-05-28 18:54:10 +02:00
send.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
struct-funcs.c btrfs: prune unused includes 2018-08-06 13:12:43 +02:00
super.c btrfs: drop unused parameter in mount_subvol 2019-04-29 19:02:35 +02:00
sysfs.c btrfs: sysfs: don't leak memory when failing add fsid 2019-05-16 14:31:12 +02:00
sysfs.h btrfs: drop extra enum initialization where using defaults 2018-12-17 14:51:43 +01:00
transaction.c Btrfs: remove no longer used member num_dirty_bgs from transaction 2019-04-29 19:02:43 +02:00
transaction.h Btrfs: remove no longer used member num_dirty_bgs from transaction 2019-04-29 19:02:43 +02:00
tree-checker.c Btrfs: tree-checker: detect file extent items with overlapping ranges 2019-05-16 14:33:51 +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 btrfs: open code now trivial btrfs_set_lock_blocking 2019-02-25 14:13:27 +01:00
tree-log.c Btrfs: fix race updating log root item during fsync 2019-05-28 19:26:46 +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 btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
ulist.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
uuid-tree.c btrfs: remove unused parameter fs_info from btrfs_extend_item 2019-04-29 19:02:50 +02:00
volumes.c btrfs: get fs_info from device in btrfs_rm_dev_replace_free_srcdev 2019-04-29 19:02:48 +02:00
volumes.h btrfs: get fs_info from device in btrfs_rm_dev_replace_free_srcdev 2019-04-29 19:02:48 +02:00
xattr.c btrfs: start transaction in xattr_handler_set_prop 2019-04-29 19:02:54 +02:00
xattr.h btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter 2019-04-29 19:02:44 +02:00
zlib.c btrfs: change set_level() to bound the level passed in 2019-02-25 14:13:32 +01:00
zstd.c btrfs: correct zstd workspace manager lock to use spin_lock_bh() 2019-05-28 18:54:09 +02:00