Linus Torvalds 2cf3f8133b btrfs: fix lzo_decompress_bio() kmap leakage ... Commit ccaa66c8dd reinstated the kmap/kunmap that had been dropped in commit 8c945d32e6 ("btrfs: compression: drop kmap/kunmap from lzo"). However, it seems to have done so incorrectly due to the change not reverting cleanly, and lzo_decompress_bio() ended up not having a matching "kunmap()" to the "kmap()" that was put back. Also, any assert that the page pointer is not NULL should be before the kmap() of said pointer, since otherwise you'd just oops in the kmap() before the assert would even trigger. I noticed this when trying to verify my btrfs merge, and things not adding up. I'm doing this fixup before re-doing my merge, because this commit needs to also be backported to 5.15 (after verification from the btrfs people). Fixes: ccaa66c8dd ("Revert 'btrfs: compression: drop kmap/kunmap from lzo'") Cc: David Sterba <dsterba@suse.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-11-01 12:46:47 -07:00
..
tests	btrfs: remove ignore_offset argument from btrfs_find_all_roots()	2021-08-23 13:19:01 +02:00
acl.c	overlayfs update for 5.15	2021-09-02 09:21:27 -07:00
async-thread.c
async-thread.h
backref.c	btrfs: remove ignore_offset argument from btrfs_find_all_roots()	2021-08-23 13:19:01 +02:00
backref.h	btrfs: remove ignore_offset argument from btrfs_find_all_roots()	2021-08-23 13:19:01 +02:00
block-group.c	btrfs: zoned: suppress reclaim error message on EAGAIN	2021-08-23 13:19:11 +02:00
block-group.h	btrfs: rework chunk allocation to avoid exhaustion of the system chunk array	2021-07-07 17:42:41 +02:00
block-rsv.c
block-rsv.h
btrfs_inode.h	btrfs: initial fsverity support	2021-08-23 13:19:09 +02:00
check-integrity.c	btrfs: check-integrity: drop kmap/kunmap for block pages	2021-08-23 13:19:00 +02:00
check-integrity.h
compression.c	for-5.16/block-2021-10-29	2021-11-01 09:19:50 -07:00
compression.h	btrfs: rework btrfs_decompress_buf2page()	2021-08-23 13:19:04 +02:00
ctree.c	mm: don't include <linux/blk-cgroup.h> in <linux/backing-dev.h>	2021-10-18 06:17:01 -06:00
ctree.h	for-5.15-rc5-tag	2021-10-11 16:48:19 -07:00
delalloc-space.c	btrfs: fix typos in comments	2021-06-22 14:11:57 +02:00
delalloc-space.h
delayed-inode.c	btrfs: add ro compat flags to inodes	2021-08-23 13:19:09 +02:00
delayed-inode.h
delayed-ref.c	btrfs: fix lock inversion problem when doing qgroup extent tracing	2021-07-22 15:50:07 +02:00
delayed-ref.h
dev-replace.c	btrfs: use bdev_nr_bytes instead of open coding it	2021-10-18 14:43:22 -06:00
dev-replace.h
dir-item.c	btrfs: unify lookup return value when dir entry is missing	2021-10-07 22:06:32 +02:00
discard.c	btrfs: fix typos in comments	2021-06-22 14:11:57 +02:00
discard.h
disk-io.c	btrfs: use bdev_nr_bytes instead of open coding it	2021-10-18 14:43:22 -06:00
disk-io.h
export.c
export.h
extent-io-tree.h
extent-tree.c	btrfs: unlock newly allocated extent buffer after error	2021-10-07 22:04:20 +02:00
extent_io.c	btrfs: zoned: fix ordered extent boundary calculation	2021-08-23 13:19:16 +02:00
extent_io.h	btrfs: fix argument type of btrfs_bio_clone_partial()	2021-08-23 13:19:08 +02:00
extent_map.c
extent_map.h
file-item.c	btrfs: replace BUG_ON() in btrfs_csum_one_bio() with proper error handling	2021-09-17 19:29:38 +02:00
file.c	btrfs: fix abort logic in btrfs_replace_file_extents	2021-10-07 22:08:06 +02:00
free-space-cache.c	btrfs: zoned: fix block group alloc_offset calculation	2021-08-23 13:19:11 +02:00
free-space-cache.h
free-space-tree.c
free-space-tree.h
inode-item.c
inode.c	for-5.16/block-2021-10-29	2021-11-01 09:19:50 -07:00
ioctl.c	btrfs: use bdev_nr_bytes instead of open coding it	2021-10-18 14:43:22 -06:00
Kconfig	btrfs: disable build on platforms having page size 256K	2021-06-22 14:11:57 +02:00
locking.c	btrfs: fix typos in comments	2021-06-22 14:11:57 +02:00
locking.h
lzo.c	btrfs: fix lzo_decompress_bio() kmap leakage	2021-11-01 12:46:47 -07:00
Makefile	btrfs: initial fsverity support	2021-08-23 13:19:09 +02:00
misc.h	btrfs: use correct header for div_u64 in misc.h	2021-09-07 14:29:50 +02:00
ordered-data.c	btrfs: zoned: fix double counting of split ordered extent	2021-09-07 14:30:41 +02:00
ordered-data.h	btrfs: remove uptodate parameter from btrfs_dec_test_first_ordered_pending	2021-08-23 13:19:02 +02:00
orphan.c
print-tree.c
print-tree.h
props.c	btrfs: props: change how empty value is interpreted	2021-06-22 14:11:58 +02:00
props.h
qgroup.c	btrfs: remove ignore_offset argument from btrfs_find_all_roots()	2021-08-23 13:19:01 +02:00
qgroup.h	btrfs: fix lock inversion problem when doing qgroup extent tracing	2021-07-22 15:50:07 +02:00
raid56.c	btrfs: constify and cleanup variables in comparators	2021-08-23 13:19:03 +02:00
raid56.h
rcu-string.h
reada.c
ref-verify.c	btrfs: stop doing GFP_KERNEL memory allocations in the ref verify tool	2021-08-23 13:19:00 +02:00
ref-verify.h
reflink.c	btrfs: reflink: make copy_inline_to_page() to be subpage compatible	2021-06-21 15:19:10 +02:00
reflink.h
relocation.c	btrfs: subpage: fix relocation potentially overwriting last page data	2021-08-23 13:19:06 +02:00
root-tree.c
scrub.c	btrfs: fix typos in comments	2021-06-22 14:11:57 +02:00
send.c	btrfs: allocate backref_ctx on stack in find_extent_clone	2021-08-23 13:19:10 +02:00
send.h
space-info.c	btrfs: prevent __btrfs_dump_space_info() to underflow its free space	2021-09-17 19:29:54 +02:00
space-info.h	btrfs: rip out btrfs_space_info::total_bytes_pinned	2021-06-22 14:55:25 +02:00
struct-funcs.c	btrfs: add special case to setget helpers for 64k pages	2021-08-23 13:18:58 +02:00
subpage.c	btrfs: subpage: fix a potential use-after-free in writeback helper	2021-08-23 13:19:05 +02:00
subpage.h	btrfs: subpage: fix writeback which does not have ordered extent	2021-08-23 13:19:04 +02:00
super.c	btrfs: allow idmapped mount	2021-08-23 13:19:15 +02:00
sysfs.c	btrfs: sysfs: document structures and their associated files	2021-08-23 13:19:12 +02:00
sysfs.h
transaction.c	btrfs: rework chunk allocation to avoid exhaustion of the system chunk array	2021-07-07 17:42:41 +02:00
transaction.h	btrfs: rework chunk allocation to avoid exhaustion of the system chunk array	2021-07-07 17:42:41 +02:00
tree-checker.c	btrfs: add ro compat flags to inodes	2021-08-23 13:19:09 +02:00
tree-checker.h
tree-defrag.c
tree-log.c	btrfs: check for error when looking up inode during dir entry replay	2021-10-07 22:06:34 +02:00
tree-log.h
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
ulist.c
ulist.h
uuid-tree.c
verity.c	btrfs: fix transaction handle leak after verity rollback failure	2021-09-17 19:29:41 +02:00
volumes.c	for-5.16/inode-sync-2021-10-29	2021-11-01 10:25:27 -07:00
volumes.h	btrfs: delay blkdev_put until after the device remove	2021-09-07 14:29:59 +02:00
xattr.c
xattr.h
zlib.c	Revert "btrfs: compression: drop kmap/kunmap from zlib"	2021-10-29 13:03:05 +02:00
zoned.c	btrfs: use btrfs_next_leaf instead of btrfs_next_item when slots > nritems	2021-08-23 13:19:01 +02:00
zoned.h	btrfs: zoned: remove max_zone_append_size logic	2021-08-23 13:18:58 +02:00
zstd.c	Revert "btrfs: compression: drop kmap/kunmap from zstd"	2021-10-29 13:02:50 +02:00