Sheng Yong a09881cfb7 f2fs: avoid hungtask when GC encrypted block if io_bits is set ... [ Upstream commit a9d572c755 ] 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> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-04-26 11:02:09 +02:00
..
9p	fs/9p: Compare qid.path in v9fs_test_inode	2017-11-30 08:40:49 +00:00
adfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
affs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
afs	afs: Fix missing error handling in afs_write_end()	2018-03-03 10:24:32 +01:00
autofs4	autofs: mount point create should honour passed in mode	2018-04-24 09:36:39 +02:00
befs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
bfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
btrfs	Btrfs: raid56: fix race between merge_bio and rbio_orig_end_io	2018-04-26 11:02:09 +02:00
cachefiles	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ceph	ceph: only dirty ITER_IOVEC pages for direct read	2018-04-08 14:26:27 +02:00
cifs	cifs: do not allow creating sockets except with SMB1 posix exensions	2018-04-26 11:02:01 +02:00
coda	coda: fix 'kernel memory exposure attempt' in fsync	2017-11-24 08:37:05 +01:00
configfs
cramfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
crypto	fscrypt: lock mutex before checking for bounce page pool	2017-11-30 08:40:44 +00:00
debugfs
devpts	devpts: fix error handling in devpts_mntget()	2018-02-16 20:23:11 +01:00
dlm	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ecryptfs	eCryptfs: use after free in ecryptfs_release_messaging()	2017-11-30 08:40:45 +00:00
efivarfs
efs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exofs	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
exportfs
ext2	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ext4	ext4: add extra checks to ext4_xattr_block_get()	2018-04-24 09:36:31 +02:00
f2fs	f2fs: avoid hungtask when GC encrypted block if io_bits is set	2018-04-26 11:02:09 +02:00
fat	fs/fat/inode.c: fix sb_rdonly() change	2017-12-05 11:26:29 +01:00
freevxfs
fscache	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fuse	fuse: fix READDIRPLUS skipping an entry	2017-10-25 16:34:27 +02:00
gfs2	GFS2: Take inode off order_write list when setting jdata flag	2017-12-20 10:10:29 +01:00
hfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hfsplus	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hostfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hpfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hugetlbfs	hugetlbfs: fix bug in pgoff overflow checking	2018-04-19 08:56:21 +02:00
isofs	isofs: fix timestamps beyond 2027	2017-11-30 08:40:45 +00:00
jbd2	ext4: pass -ESHUTDOWN code to jbd2 layer	2018-04-24 09:36:30 +02:00
jffs2	jffs2_kill_sb(): deal with failed allocations	2018-04-24 09:36:38 +02:00
jfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
kernfs	kernfs: fix regression in kernfs_fop_write caused by wrong type	2018-02-16 20:22:59 +01:00
lockd	race of lockd inetaddr notifiers vs nlmsvc_rqst change	2018-02-03 17:39:08 +01:00
minix	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ncpfs	staging: ncpfs: memory corruption in ncp_read_kernel()	2018-03-28 18:24:43 +02:00
nfs	nfs: Do not convert nfs_idmap_cache_timeout to jiffies	2018-04-26 11:02:08 +02:00
nfs_common	lockd: fix "list_add double add" caused by legacy signal interface	2018-02-03 17:39:08 +01:00
nfsd	nfsd: fix incorrect umasks	2018-04-19 08:56:21 +02:00
nilfs2	nilfs2: fix race condition that causes file system corruption	2017-11-30 08:40:44 +00:00
nls	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
notify	fanotify: fix logic of events on child	2018-04-24 09:36:38 +02:00
ntfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ocfs2	ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE	2018-02-22 15:42:16 +01:00
omfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
openpromfs
orangefs	orangefs_kill_sb(): deal with allocation failures	2018-04-24 09:36:38 +02:00
overlayfs	ovl: fix lookup with middle layer opaque dir and absolute path redirects	2018-04-19 08:56:21 +02:00
proc	fs/proc/kcore.c: use probe_kernel_read() instead of memcpy()	2018-02-16 20:23:05 +01:00
pstore	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
qnx4	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
qnx6	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
quota	quota: Check for register_shrinker() failure.	2018-02-03 17:39:11 +01:00
ramfs	mm: make pagevec_lookup() update index	2017-09-06 17:27:26 -07:00
reiserfs	fs/reiserfs/journal.c: add missing resierfs_warning() arg	2018-04-24 09:36:22 +02:00
romfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
squashfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sysfs	sysfs: symlink: export sysfs_create_link_nowarn()	2018-03-31 18:10:38 +02:00
sysv	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
tracefs
ubifs	ubifs: Fix uninitialized variable in search_dh_cookie()	2018-04-26 11:02:07 +02:00
udf	udf: Fix leak of UTF-16 surrogates into encoded strings	2018-04-24 09:36:38 +02:00
ufs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xfs	xfs: quota: check result of register_shrinker()	2018-03-03 10:24:33 +01:00
aio.c	fs/aio: Use RCU accessors for kioctx_table->table[]	2018-03-21 12:06:43 +01:00
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.c	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 18:13:32 -07:00
binfmt_elf_fdpic.c	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 18:13:32 -07:00
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	fs/mpage.c: fix mpage_writepage() for pages with buffers	2017-10-13 16:18:33 -07:00
buffer.c	fs: guard_bio_eod() needs to consider partitions	2017-11-30 08:40:45 +00:00
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.c
compat_binfmt_elf.c
compat_ioctl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
coredump.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dax.c	dax: fix PMD faults on zero-length files	2017-11-30 08:40:53 +00:00
dcache.c	VFS: close race between getcwd() and d_move()	2018-04-12 12:32:13 +02:00
dcookies.c
direct-io.c	direct-io: Fix sleep in atomic due to sync AIO	2018-03-08 22:41:06 -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
eventpoll.c	fs/epoll: use faster rb_first_cached()	2017-09-08 18:26:49 -07:00
exec.c	exec: avoid gcc-8 warning for get_task_comm	2018-03-03 10:24:21 +01:00
fcntl.c	fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall	2017-12-17 15:07:59 +01:00
fhandle.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
file.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
file_table.c	fput: Don't reinvent the wheel but use existing llist API	2017-08-28 00:50:23 -04:00
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-writeback.c	writeback: safer lock nesting	2018-04-24 09:36:39 +02:00
fs_pin.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fs_struct.c
inode.c	Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2017-09-13 09:11:44 -07:00
internal.h	Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2017-09-13 09:11:44 -07:00
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	fs: invalidate page cache after end_io() in dio completion	2017-10-16 12:11:56 -07:00
Kconfig
Kconfig.binfmt
libfs.c
locks.c
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	mbcache: initialize entry->e_referenced in mb_cache_entry_create()	2018-02-22 15:42:25 +01:00
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	getname_kernel() needs to make sure that ->name != ->iname in long case	2018-04-19 08:56:19 +02:00
namespace.c	Don't leak MNT_INTERNAL away from internal mounts	2018-04-24 09:36:39 +02:00
no-block.c
nsfs.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
open.c	ovl: don't allow writing ioctl on lower layer	2017-09-05 12:53:12 +02:00
pipe.c	pipe: fix off-by-one error when checking buffer limits	2018-02-16 20:23:05 +01:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
read_write.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
readdir.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
select.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
seq_file.c	seq_file: fix incomplete reset on read from zero offset	2018-02-22 15:42:28 +01:00
signalfd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
splice.c	fs: move kernel_write to fs/read_write.c	2017-09-04 19:05:15 -04:00
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	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
super.c	sget(): handle failures of register_shrinker()	2018-03-03 10:24:24 +01:00
sync.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
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: clear the vma->vm_userfaultfd_ctx if UFFD_EVENT_FORK fails	2018-01-10 09:31:17 +01:00
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