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2cf3f8133b
linux/fs
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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
..
9p 9p: Fix a bunch of kerneldoc warnings shown up by W=1 2021-10-04 22:07:46 +01:00
adfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
affs affs: use bdev_nr_sectors instead of open coding it 2021-10-18 14:43:22 -06:00
afs Memory folios 2021-11-01 08:47:59 -07:00
autofs autofs: fix wait name hash calculation in autofs_wait() 2021-10-20 21:09:02 -04:00
befs isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
bfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
btrfs btrfs: fix lzo_decompress_bio() kmap leakage 2021-11-01 12:46:47 -07:00
cachefiles for-5.16/ki_complete-2021-10-29 2021-11-01 10:17:11 -07:00
ceph for-5.16/ki_complete-2021-10-29 2021-11-01 10:17:11 -07:00
cifs fs: get rid of the res2 iocb->ki_complete argument 2021-10-25 10:36:24 -06:00
coda
configfs configfs: fix a race in configfs_lookup() 2021-08-25 07:58:49 +02:00
cramfs cramfs: use bdev_nr_bytes instead of open coding it 2021-10-18 14:43:22 -06:00
crypto fscrypt: improve a few comments 2021-10-25 19:11:50 -07:00
debugfs debugfs: debugfs_create_file_size(): use IS_ERR to check for error 2021-09-21 09:09:06 +02:00
devpts
dlm fs: dlm: avoid comms shutdown delay in release_lockspace 2021-09-01 11:29:14 -05:00
ecryptfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
efivarfs
efs
erofs erofs: don't trigger WARN() when decompression fails 2021-10-31 21:00:28 +08:00
exfat exfat: fix incorrect loading of i_blocks for large files 2021-11-01 07:49:21 +09:00
exportfs
ext2 ext2: fix sleeping in atomic bugs on error 2021-09-22 13:05:23 +02:00
ext4 fscrypt updates for 5.16 2021-11-01 11:36:35 -07:00
f2fs fscrypt updates for 5.16 2021-11-01 11:36:35 -07:00
fat for-5.16/inode-sync-2021-10-29 2021-11-01 10:25:27 -07:00
freevxfs
fscache fscache: Remove an unused static variable 2021-10-04 22:13:12 +01:00
fuse for-5.16/ki_complete-2021-10-29 2021-11-01 10:17:11 -07:00
gfs2 for-5.16/block-2021-10-29 2021-11-01 09:19:50 -07:00
hfs hfs: use bdev_nr_sectors instead of open coding it 2021-10-18 14:43:22 -06:00
hfsplus hfsplus: use bdev_nr_sectors instead of open coding it 2021-10-18 14:43:23 -06:00
hostfs hostfs: support splice_write 2021-08-26 22:28:02 +02:00
hpfs hpfs: use iomap_fiemap to implement ->fiemap 2021-07-27 11:00:36 +02:00
hugetlbfs hugetlbfs: fix mount mode command line processing 2021-07-23 17:43:28 -07:00
iomap fs: get rid of the res2 iocb->ki_complete argument 2021-10-25 10:36:24 -06:00
isofs isofs: joliet: Fix iocharset=utf8 mount option 2021-08-12 16:07:14 +02:00
jbd2 jbd2: add sparse annotations for add_transaction_credits() 2021-08-30 23:36:50 -04:00
jffs2 vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
jfs for-5.16/bdev-size-2021-10-29 2021-11-01 09:50:37 -07:00
kernfs kernfs: don't create a negative dentry if inactive node exists 2021-10-04 10:27:18 +02:00
ksmbd ksmbd: add buffer validation in session setup 2021-10-20 00:07:10 -05:00
lockd Critical bug fixes: 2021-09-22 09:21:02 -07:00
minix mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
netfs netfs: Fix READ/WRITE confusion when calling iov_iter_xarray() 2021-10-05 11:22:06 +01:00
nfs for-5.16/ki_complete-2021-10-29 2021-11-01 10:17:11 -07:00
nfs_common nfs: Fix kerneldoc warning shown up by W=1 2021-10-04 22:02:17 +01:00
nfsd nfsd/blocklayout: use ->get_unique_id instead of sending SCSI commands 2021-10-22 08:33:57 -06:00
nilfs2 nilfs2: use bdev_nr_bytes instead of open coding it 2021-10-18 14:43:23 -06:00
nls
notify fsnotify: fix sb_connectors leak 2021-09-10 09:46:48 -07:00
ntfs ntfs: use sb_bdev_nr_blocks 2021-10-18 14:43:23 -06:00
ntfs3 for-5.16/inode-sync-2021-10-29 2021-11-01 10:25:27 -07:00
ocfs2 ocfs2: fix race between searching chunks and release journal_head from buffer_head 2021-10-28 17:18:55 -07:00
omfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
openpromfs
orangefs mm: don't include <linux/blkdev.h> in <linux/backing-dev.h> 2021-10-18 06:17:01 -06:00
overlayfs fs: get rid of the res2 iocb->ki_complete argument 2021-10-25 10:36:24 -06:00
proc Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
pstore pstore/blk: use bdev_nr_bytes instead of open coding it 2021-10-18 14:43:23 -06:00
qnx4 qnx4: work around gcc false positive warning bug 2021-09-21 08:36:48 -07:00
qnx6
quota mm: don't include <linux/blk-cgroup.h> in <linux/writeback.h> 2021-10-18 06:17:01 -06:00
ramfs mm: don't include <linux/blk-cgroup.h> in <linux/backing-dev.h> 2021-10-18 06:17:01 -06:00
reiserfs reiserfs: use sb_bdev_nr_blocks 2021-10-18 14:43:23 -06:00
romfs
smbfs_common cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
squashfs squashfs: use bdev_nr_bytes instead of open coding it 2021-10-18 14:43:23 -06:00
sysfs sysfs: Allow deferred execution of iomem_get_mapping() 2021-08-06 13:05:28 +02:00
sysv mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
tracefs
ubifs fscrypt: remove fscrypt_operations::max_namelen 2021-09-20 19:32:33 -07:00
udf udf: use sb_bdev_nr_blocks 2021-10-18 14:43:23 -06:00
ufs isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
unicode
vboxsf vboxfs: fix broken legacy mount signature checking 2021-09-27 11:26:21 -07:00
verity fs-verity: fix signed integer overflow with i_size near S64_MAX 2021-09-22 10:56:34 -07:00
xfs block: switch polling to be bio based 2021-10-18 06:17:36 -06:00
zonefs block: switch polling to be bio based 2021-10-18 06:17:36 -06:00
aio.c fs: get rid of the res2 iocb->ki_complete argument 2021-10-25 10:36:24 -06:00
anon_inodes.c
attr.c fs: Move notify_change permission checks into may_setattr 2021-08-13 00:41:05 -04:00
bad_inode.c vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
binfmt_aout.c binfmt: a.out: Fix bogus semicolon 2021-09-05 10:15:05 -07:00
binfmt_elf_fdpic.c binfmt: remove in-tree usage of MAP_DENYWRITE 2021-09-03 18:42:01 +02:00
binfmt_elf.c elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings 2021-10-03 14:02:58 -07:00
binfmt_flat.c binfmt: remove in-tree usage of MAP_EXECUTABLE 2021-06-29 10:53:50 -07:00
binfmt_misc.c
binfmt_script.c
buffer.c fs: simplify init_page_buffers 2021-10-18 14:43:22 -06:00
char_dev.c
compat_binfmt_elf.c
coredump.c coredump: fix memleak in dump_vma_snapshot() 2021-09-08 11:50:27 -07:00
d_path.c d_path: make 'prepend()' fill up the buffer exactly on overflow 2021-09-02 10:07:29 -07:00
dax.c New code for 5.15: 2021-08-31 11:13:35 -07:00
dcache.c
direct-io.c fs: get rid of the res2 iocb->ki_complete argument 2021-10-25 10:36:24 -06:00
drop_caches.c fs: drop_caches: fix skipping over shadow cache inodes 2021-09-03 09:58:10 -07:00
eventfd.c eventfd: Export eventfd_wake_count to modules 2021-09-06 07:20:56 -04:00
eventpoll.c ARM development updates for 5.15: 2021-09-09 13:25:49 -07:00
exec.c Merge tag 'denywrite-for-5.15' of git://github.com/davidhildenbrand/linux 2021-09-04 11:35:47 -07:00
fcntl.c Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
fhandle.c
file_table.c
file.c virtio,vdpa,vhost: features, fixes 2021-09-11 14:48:42 -07:00
filesystems.c fs: simplify get_filesystem_list / get_all_fs_names 2021-08-23 01:25:40 -04:00
fs_context.c memcg: charge fs_context and legacy_fs_context 2021-09-03 09:58:12 -07:00
fs_parser.c namei: Standardize callers of filename_lookup() 2021-09-07 16:07:47 -04:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c block: cleanup the flush plug helpers 2021-10-20 09:56:11 -06:00
fsopen.c
init.c
inode.c mm: Fully initialize invalidate_lock, amend lock class later 2021-09-17 13:39:23 +02:00
internal.h block: simplify the block device syncing code 2021-10-22 08:36:55 -06:00
io_uring.c for-5.16/ki_complete-2021-10-29 2021-11-01 10:17:11 -07:00
io-wq.c for-5.16/io_uring-2021-10-29 2021-11-01 09:41:33 -07:00
io-wq.h io_uring: optimise INIT_WQ_LIST 2021-10-19 05:49:54 -06:00
ioctl.c New code for 5.15: 2021-08-31 11:06:32 -07:00
Kconfig 4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate 2021-09-12 10:10:21 -07:00
Kconfig.binfmt binfmt: remove support for em86 (alpha only) 2021-07-25 22:33:03 -07:00
kernel_read_file.c vfs: check fd has read access in kernel_read_file_from_fd() 2021-10-18 20:22:03 -10:00
libfs.c fs: remove noop_set_page_dirty() 2021-06-29 10:53:48 -07:00
locks.c locks: remove changelog comments 2021-10-19 14:11:39 -04:00
Makefile 4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate 2021-09-12 10:10:21 -07:00
mbcache.c
mount.h
mpage.c
namei.c File locking changes for v5.16 2021-11-01 09:06:53 -07:00
namespace.c Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
no-block.c
nsfs.c
open.c fs: remove mandatory file locking support 2021-08-23 06:15:36 -04:00
pipe.c Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly" 2021-09-07 11:03:45 -07:00
pnode.c
pnode.h
posix_acl.c ovl: enable RCU'd ->get_acl() 2021-08-18 22:08:24 +02:00
proc_namespace.c
read_write.c fs: remove leftover comments from mandatory locking removal 2021-10-26 12:20:50 -04:00
readdir.c
remap_range.c fs: remove mandatory file locking support 2021-08-23 06:15:36 -04:00
select.c Revert "memcg: enable accounting for pollfd and select bits arrays" 2021-09-07 11:26:23 -07:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-07-19 17:18:48 -07:00
signalfd.c signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency 2021-07-23 13:16:43 -05:00
splice.c
stack.c
stat.c fs: add generic helper for filling statx attribute flags 2021-08-17 11:47:43 +02:00
statfs.c
super.c block: remove the bd_bdi in struct block_device 2021-08-09 11:53:26 -06:00
sync.c block: simplify the block device syncing code 2021-10-22 08:36:55 -06:00
timerfd.c timerfd: Provide timerfd_resume() 2021-08-10 17:57:22 +02:00
userfaultfd.c userfaultfd: fix a race between writeprotect and exit_mmap() 2021-10-18 20:22:02 -10:00
utimes.c
xattr.c