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Filipe Manana 27cdfde181 btrfs: update writeback index when starting defrag 
When starting a defrag, we should update the writeback index of the
inode's mapping in case it currently has a value beyond the start of the
range we are defragging. This can help performance and often result in
getting less extents after writeback - for e.g., if the current value
of the writeback index sits somewhere in the middle of a range that
gets dirty by the defrag, then after writeback we can get two smaller
extents instead of a single, larger extent.

We used to have this before the refactoring in 5.16, but it was removed
without any reason to do so. Originally it was added in kernel 3.1, by
commit 2a0f7f5769 ("Btrfs: fix recursive auto-defrag"), in order to
fix a loop with autodefrag resulting in dirtying and writing pages over
and over, but some testing on current code did not show that happening,
at least with the test described in that commit.

So add back the behaviour, as at the very least it is a nice to have
optimization.

Fixes: 7b508037d4 ("btrfs: defrag: use defrag_one_cluster() to implement btrfs_defrag_file()")
CC: stable@vger.kernel.org # 5.16
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-01-24 18:16:28 +01:00
..
9p netfs, 9p, afs, ceph: Use folios 2021-11-10 21:16:56 +00:00
adfs
affs
afs afs: Fix mmap 2021-12-16 09:10:13 -08:00
autofs autofs: fix wait name hash calculation in autofs_wait() 2021-10-20 21:09:02 -04:00
befs
bfs
btrfs btrfs: update writeback index when starting defrag 2022-01-24 18:16:28 +01:00
cachefiles for-5.16/ki_complete-2021-10-29 2021-11-01 10:17:11 -07:00
ceph ceph: fix up non-directory creation in SGID directories 2021-12-01 17:08:27 +01:00
cifs cifs: sanitize multiple delimiters in prepath 2021-12-17 19:16:49 -06:00
coda coda: bump module version to 7.2 2021-11-09 10:02:51 -08:00
configfs
cramfs
crypto fscrypt: improve a few comments 2021-10-25 19:11:50 -07:00
debugfs
devpts
dlm
ecryptfs
efivarfs
efs
erofs erofs: fix deadlock when shrink erofs slab 2021-11-23 14:58:16 +08:00
exfat exfat: fix incorrect loading of i_blocks for large files 2021-11-01 07:49:21 +09:00
exportfs
ext2
ext4 Only bug fixes and cleanups for ext4 this merge window. Of note are 2021-11-10 17:05:37 -08:00
f2fs Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
fat for-5.16/inode-sync-2021-10-29 2021-11-01 10:25:27 -07:00
freevxfs
fscache
fuse fuse: release pipe buf after last use 2021-11-25 14:05:18 +01:00
gfs2 gfs2: gfs2_create_inode rework 2021-12-02 12:41:10 +01:00
hfs Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
hfsplus Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
hostfs
hpfs
hugetlbfs mm,hugetlb: remove mlock ulimit for SHM_HUGETLB 2021-11-09 10:02:48 -08:00
iomap iomap: iomap_read_inline_data cleanup 2021-11-24 10:15:47 -08:00
isofs
jbd2
jffs2
jfs Just one JFS patch 2021-11-03 09:23:25 -07:00
kernfs
ksmbd ksmbd: disable SMB2_GLOBAL_CAP_ENCRYPTION for SMB 3.1.1 2021-12-17 19:19:45 -06:00
lockd A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping 2021-11-10 16:45:54 -08:00
minix
netfs netfs: fix parameter of cleanup() 2021-12-07 15:47:09 +00:00
nfs NFS client bugfixes for Linux 5.16 2021-11-27 10:33:55 -08:00
nfs_common
nfsd NFSD: Fix READDIR buffer overflow 2021-12-18 17:11:06 -05:00
nilfs2 Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
nls
notify fanotify: Allow users to request FAN_FS_ERROR events 2021-10-27 12:53:45 +02:00
ntfs fs: ntfs: Limit NTFS_RW to page sizes smaller than 64k 2021-11-27 14:34:41 -08:00
ntfs3 gfs2: Fix mmap + page fault deadlocks 2021-11-02 12:25:03 -07:00
ocfs2 Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
omfs
openpromfs
orangefs orangefs: three fixes from other folks... 2021-11-09 10:34:06 -08:00
overlayfs overlayfs update for 5.16 2021-11-09 10:51:12 -08:00
proc proc/vmcore: fix clearing user buffer by properly using clear_user() 2021-11-20 10:35:55 -08:00
pstore pstore/blk: Use "%lu" to format unsigned long 2021-11-21 09:44:19 -08:00
qnx4
qnx6
quota \n 2021-11-06 16:40:48 -07:00
ramfs Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
reiserfs \n 2021-11-06 16:40:48 -07:00
romfs
smbfs_common cifs: Fix crash on unload of cifs_arc4.ko 2021-12-07 22:38:03 -06:00
squashfs lib: zstd: Add kernel-specific API 2021-11-08 16:55:21 -08:00
sysfs
sysv sysv: use BUILD_BUG_ON instead of runtime check 2021-11-09 10:02:52 -08:00
tracefs tracefs: Set all files to the same group ownership as the mount option 2021-12-08 08:06:40 -05:00
ubifs
udf udf: Fix crash after seekdir 2021-11-09 12:53:58 +01:00
ufs
unicode
vboxsf
verity
xfs xfs: remove all COW fork extents when remounting readonly 2021-12-07 10:17:29 -08:00
zonefs zonefs: add MODULE_ALIAS_FS 2021-12-17 16:56:35 +09:00
aio.c aio: Fix incorrect usage of eventfd_signal_allowed() 2021-12-09 10:52:55 -08:00
anon_inodes.c
attr.c fs: handle circular mappings correctly 2021-11-17 09:26:09 +01:00
bad_inode.c
binfmt_aout.c
binfmt_elf.c Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
binfmt_elf_fdpic.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
buffer.c
char_dev.c
compat_binfmt_elf.c
coredump.c
d_path.c d_path: fix Kernel doc validator complaining 2021-11-06 13:30:32 -07:00
dax.c
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
eventfd.c
eventpoll.c
exec.c Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
fcntl.c
fhandle.c
file.c fget: clarify and improve __fget_files() implementation 2021-12-13 10:55:30 -08:00
file_table.c
filesystems.c
fs-writeback.c Various hardening fixes and cleanups for 5.16-rc1 2021-11-01 17:29:10 -07:00
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
init.c
inode.c fs: Remove FS_THP_SUPPORT 2021-11-17 10:36:35 -05:00
internal.h Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
io-wq.c io-wq: drop wqe lock before creating new worker 2021-12-13 09:04:01 -07:00
io-wq.h
io_uring.c io_uring: zero iocb->ki_pos for stream file types 2021-12-22 20:34:32 -07:00
ioctl.c
Kconfig
Kconfig.binfmt
kernel_read_file.c
libfs.c libfs: Support RENAME_EXCHANGE in simple_rename() 2021-11-03 15:43:08 +01:00
locks.c
Makefile
mbcache.c
mount.h
mpage.c
namei.c File locking changes for v5.16 2021-11-01 09:06:53 -07:00
namespace.c fs/mount_setattr: always cleanup mount_kattr 2021-12-30 15:12:13 -08:00
no-block.c
nsfs.c
open.c Merge branch 'akpm' (patches from Andrew) 2021-11-06 14:08:17 -07:00
pipe.c
pnode.c
pnode.h
posix_acl.c fs/posix_acl.c: avoid -Wempty-body warning 2021-11-06 13:30:32 -07:00
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
select.c
seq_file.c seq_file: move seq_escape() to a header 2021-11-09 10:02:52 -08:00
signalfd.c signalfd: use wake_up_pollfree() 2021-12-09 10:49:56 -08:00
splice.c
stack.c
stat.c
statfs.c
super.c fs: explicitly unregister per-superblock BDIs 2021-11-06 13:30:34 -07:00
sync.c block: simplify the block device syncing code 2021-10-22 08:36:55 -06:00
timerfd.c
userfaultfd.c
utimes.c
xattr.c