Sheng Yong a9d572c755 f2fs: avoid hungtask when GC encrypted block if io_bits is set ... When io_bits is set, GCing encrypted block may hit the following hungtask. Since io_bits requires aligned block address, f2fs_submit_page_write may return -EAGAIN if new_blkaddr does not satisify io_bits alignment. As a result, the encrypted page will never be writtenback. This patch makes move_data_block aware the EAGAIN error and cancel the writeback. [ 246.751371] INFO: task kworker/u4:4:797 blocked for more than 90 seconds. [ 246.752423] Not tainted 4.15.0-rc4+ #11 [ 246.754176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.755336] kworker/u4:4 D25448 797 2 0x80000000 [ 246.755597] Workqueue: writeback wb_workfn (flush-7:0) [ 246.755616] Call Trace: [ 246.755695] ? __schedule+0x322/0xa90 [ 246.755761] ? blk_init_request_from_bio+0x120/0x120 [ 246.755773] ? pci_mmcfg_check_reserved+0xb0/0xb0 [ 246.755801] ? __radix_tree_create+0x19e/0x200 [ 246.755813] ? delete_node+0x136/0x370 [ 246.755838] schedule+0x43/0xc0 [ 246.755904] io_schedule+0x17/0x40 [ 246.755939] wait_on_page_bit_common+0x17b/0x240 [ 246.755950] ? wake_page_function+0xa0/0xa0 [ 246.755961] ? add_to_page_cache_lru+0x160/0x160 [ 246.755972] ? page_cache_tree_insert+0x170/0x170 [ 246.755983] ? __lru_cache_add+0x96/0xb0 [ 246.756086] __filemap_fdatawait_range+0x14f/0x1c0 [ 246.756097] ? wait_on_page_bit_common+0x240/0x240 [ 246.756120] ? __wake_up_locked_key_bookmark+0x20/0x20 [ 246.756167] ? wait_on_all_pages_writeback+0xc9/0x100 [ 246.756179] ? __remove_ino_entry+0x120/0x120 [ 246.756192] ? wait_woken+0x100/0x100 [ 246.756204] filemap_fdatawait_range+0x9/0x20 [ 246.756216] write_checkpoint+0x18a1/0x1f00 [ 246.756254] ? blk_get_request+0x10/0x10 [ 246.756265] ? cpumask_next_and+0x43/0x60 [ 246.756279] ? f2fs_sync_inode_meta+0x160/0x160 [ 246.756289] ? remove_element.isra.4+0xa0/0xa0 [ 246.756300] ? __put_compound_page+0x40/0x40 [ 246.756310] ? f2fs_sync_fs+0xec/0x1c0 [ 246.756320] ? f2fs_sync_fs+0x120/0x1c0 [ 246.756329] f2fs_sync_fs+0x120/0x1c0 [ 246.756357] ? trace_event_raw_event_f2fs__page+0x260/0x260 [ 246.756393] ? ata_build_rw_tf+0x173/0x410 [ 246.756397] f2fs_balance_fs_bg+0x198/0x390 [ 246.756405] ? drop_inmem_page+0x230/0x230 [ 246.756415] ? ahci_qc_prep+0x1bb/0x2e0 [ 246.756418] ? ahci_qc_issue+0x1df/0x290 [ 246.756422] ? __accumulate_pelt_segments+0x42/0xd0 [ 246.756426] ? f2fs_write_node_pages+0xd1/0x380 [ 246.756429] f2fs_write_node_pages+0xd1/0x380 [ 246.756437] ? sync_node_pages+0x8f0/0x8f0 [ 246.756440] ? update_curr+0x53/0x220 [ 246.756444] ? __accumulate_pelt_segments+0xa2/0xd0 [ 246.756448] ? __update_load_avg_se.isra.39+0x349/0x360 [ 246.756452] ? do_writepages+0x2a/0xa0 [ 246.756456] do_writepages+0x2a/0xa0 [ 246.756460] __writeback_single_inode+0x70/0x490 [ 246.756463] ? check_preempt_wakeup+0x199/0x310 [ 246.756467] writeback_sb_inodes+0x2a2/0x660 [ 246.756471] ? is_empty_dir_inode+0x40/0x40 [ 246.756474] ? __writeback_single_inode+0x490/0x490 [ 246.756477] ? string+0xbf/0xf0 [ 246.756480] ? down_read_trylock+0x35/0x60 [ 246.756484] __writeback_inodes_wb+0x9f/0xf0 [ 246.756488] wb_writeback+0x41d/0x4b0 [ 246.756492] ? writeback_inodes_wb.constprop.55+0x150/0x150 [ 246.756498] ? set_worker_desc+0xf7/0x130 [ 246.756502] ? current_is_workqueue_rescuer+0x60/0x60 [ 246.756511] ? _find_next_bit+0x2c/0xa0 [ 246.756514] ? wb_workfn+0x400/0x5d0 [ 246.756518] wb_workfn+0x400/0x5d0 [ 246.756521] ? finish_task_switch+0xdf/0x2a0 [ 246.756525] ? inode_wait_for_writeback+0x30/0x30 [ 246.756529] process_one_work+0x3a7/0x6f0 [ 246.756533] worker_thread+0x82/0x750 [ 246.756537] kthread+0x16f/0x1c0 [ 246.756541] ? trace_event_raw_event_workqueue_work+0x110/0x110 [ 246.756544] ? kthread_create_worker_on_cpu+0xb0/0xb0 [ 246.756548] ret_from_fork+0x1f/0x30 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>		2018-01-22 14:56:49 -08:00
..
9p	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
adfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
affs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
afs	afs: Properly reset afs_vnode (inode) fields	2017-12-01 11:51:24 +00:00
autofs4	autofs: fix careless error in recent commit	2017-12-14 16:00:48 -08:00
befs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
bfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
btrfs	for-4.15-rc3-tag	2017-12-10 08:30:04 -08:00
cachefiles	mm: remove __GFP_COLD	2017-11-15 18:21:06 -08:00
ceph	ceph: drop negative child dentries before try pruning inode's alias	2017-12-08 11:07:12 +01:00
cifs	CIFS: don't log STATUS_NOT_FOUND errors for DFS	2017-12-06 12:48:01 -06:00
coda	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
configfs	configfs: make ci_type field, some pointers and function arguments const	2017-10-19 16:15:16 +02:00
cramfs	cramfs: fix MTD dependency	2017-12-17 12:20:58 -08:00
crypto	fscrypt: lots of cleanups, mostly courtesy by Eric Biggers	2017-11-14 11:35:15 -08:00
debugfs	debugfs: Remove redundant license text	2017-11-07 20:25:03 +01:00
devpts	pty: Repair TIOCGPTPEER	2017-08-24 13:23:03 -07:00
dlm	A couple of configfs cleanups:	2017-11-14 14:44:04 -08:00
ecryptfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
efivarfs	VFS: Kill off s_options and helpers	2017-07-11 06:09:21 -04:00
efs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
exofs	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
exportfs
ext2	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
ext4	ext4: fix crash when a directory's i_size is too small	2017-12-11 15:00:57 -05:00
f2fs	f2fs: avoid hungtask when GC encrypted block if io_bits is set	2018-01-22 14:56:49 -08:00
fat	fs/fat/inode.c: fix sb_rdonly() change	2017-11-29 18:40:43 -08:00
freevxfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
fscache	AFS development	2017-11-16 11:41:22 -08:00
fuse	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
gfs2	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
hfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
hfsplus	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
hostfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hpfs	hpfs: don't bother with the i_version counter or f_version	2017-12-10 12:58:18 -08:00
hugetlbfs	fs/hugetlbfs/inode.c: change put_page/unlock_page order in hugetlbfs_fallocate()	2017-11-29 18:40:43 -08:00
isofs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
jbd2	libnvdimm for 4.15	2017-11-17 09:51:57 -08:00
jffs2	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
jfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
kernfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
lockd	nlm_shutdown_hosts_net() cleanup	2017-11-27 16:45:11 -05:00
minix	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
ncpfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
nfs	NFS client fixes for Linux 4.15-rc4	2017-12-16 13:12:53 -08:00
nfs_common	lockd: fix "list_add double add" caused by legacy signal interface	2017-11-27 16:45:11 -05:00
nfsd	kernel: make groups_sort calling a responsibility group_info allocators	2017-12-14 16:00:49 -08:00
nilfs2	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
nls	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
notify	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
ntfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
ocfs2	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
omfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
openpromfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
orangefs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
overlayfs	ovl: fix overlay: warning prefix	2017-12-14 11:14:52 +01:00
proc	proc: show si_ptr in /proc/<pid>/timers without hashing	2017-12-06 18:23:27 -08:00
pstore	treewide: Switch DEFINE_TIMER callbacks to struct timer_list *	2017-11-21 15:57:05 -08:00
qnx4	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
qnx6	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
quota	quota: Check for register_shrinker() failure.	2017-11-29 16:46:48 +01:00
ramfs	mm: make pagevec_lookup() update index	2017-09-06 17:27:26 -07:00
reiserfs	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2017-11-30 18:38:47 -05:00
romfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
squashfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
sysfs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
sysv	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
tracefs	VFS: Don't use save/replace_mount_options if not using generic_show_options	2017-07-06 03:31:46 -04:00
ubifs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
udf	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
ufs	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
xfs	Changes since last update:	2017-12-13 20:15:49 -08:00
aio.c	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
anon_inodes.c
attr.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
bad_inode.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
binfmt_aout.c	fs: fix kernel_read prototype	2017-09-04 19:05:15 -04:00
binfmt_elf_fdpic.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:54:01 -08:00
binfmt_elf.c	Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm	2017-11-16 12:50:35 -08:00
binfmt_em86.c
binfmt_flat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
binfmt_misc.c	fs/binfmt_misc.c: node could be NULL when evicting inode	2017-10-13 16:18:33 -07:00
binfmt_script.c	exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array	2017-10-03 17:54:25 -07:00
block_dev.c	Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block	2017-11-14 15:32:19 -08:00
buffer.c	mm, pagevec: remove cold parameter for pagevecs	2017-11-15 18:21:06 -08:00
char_dev.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compat_binfmt_elf.c
compat_ioctl.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:54:01 -08:00
compat.c
coredump.c	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
dax.c	Revert "mm: replace p??_write with pte_access_permitted in fault + gup paths"	2017-12-15 18:53:22 -08:00
dcache.c	kmemcheck: remove annotations	2017-11-15 18:21:04 -08:00
dcookies.c
direct-io.c	Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block	2017-11-14 15:32:19 -08:00
drop_caches.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
eventfd.c	There has been a fair amount of activity in the docs tree this time	2017-07-03 21:13:25 -07:00
eventpoll.c	Merge branch 'akpm' (patches from Andrew)	2017-11-17 16:56:17 -08:00
exec.c	Revert "exec: avoid RLIMIT_STACK races with prlimit()"	2017-12-17 14:26:25 -08:00
fcntl.c	fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall	2017-11-15 08:08:36 -05:00
fhandle.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:54:01 -08:00
file_table.c	fs, mm: account filp cache to kmemcg	2017-11-15 18:21:04 -08:00
file.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:54:01 -08:00
filesystems.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fs_pin.c	Merge branch 'linus' into locking/core, to resolve conflicts	2017-11-07 10:32:44 +01:00
fs_struct.c
fs-writeback.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
inode.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
internal.h	fs: expose do_unlinkat for built-in callers	2017-11-10 08:48:46 -05:00
ioctl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
iomap.c	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:08:18 -08:00
Kconfig	fs/Kconfig: kill CONFIG_PERCPU_RWSEM some more	2017-07-12 16:26:00 -07:00
Kconfig.binfmt	ARM: enable elf_fdpic on systems with an MMU	2017-09-10 19:31:46 -04:00
libfs.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
locks.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mbcache.c	fs/mbcache.c: make count_objects() more robust	2017-11-29 18:40:43 -08:00
mount.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mpage.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
namei.c	autofs: revert "autofs: fix AT_NO_AUTOMOUNT not being honored"	2017-11-29 18:40:43 -08:00
namespace.c	VFS: Handle lazytime in do_mount()	2017-12-09 20:16:33 -05:00
no-block.c
nsfs.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
open.c	ovl: don't allow writing ioctl on lower layer	2017-09-05 12:53:12 +02:00
pipe.c	pipe: add proc_dopipe_max_size() to safely assign pipe_max_size	2017-11-17 16:10:03 -08:00
pnode.c
pnode.h
posix_acl.c	posix_acl: convert posix_acl.a_refcount from atomic_t to refcount_t	2018-01-02 19:27:28 -08:00
proc_namespace.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
read_write.c	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:08:18 -08:00
readdir.c	Merge branch 'linus' into locking/core, to resolve conflicts	2017-11-07 10:32:44 +01:00
select.c	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
seq_file.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
signalfd.c	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
splice.c	locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()	2017-10-25 11:01:08 +02:00
stack.c
stat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
statfs.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
super.c	alloc_super(): do ->s_umount initialization earlier	2017-12-05 09:32:25 -05:00
sync.c	Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block	2017-11-14 15:32:19 -08:00
timerfd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
userfaultfd.c	userfaultfd: use mmgrab instead of open-coded increment of mm_count	2017-11-15 18:21:05 -08:00
utimes.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xattr.c	lsm: fix smack_inode_removexattr and xattr_getsecurity memleak	2017-10-04 18:03:15 +11:00