linux/fs/f2fs
Chao Yu c9b3649a93 f2fs: fix to drop all dirty pages during umount() if cp_error is set
xfstest generic/361 reports a bug as below:

f2fs_bug_on(sbi, sbi->fsync_node_num);

kernel BUG at fs/f2fs/super.c:1627!
RIP: 0010:f2fs_put_super+0x3a8/0x3b0
Call Trace:
 generic_shutdown_super+0x8c/0x1b0
 kill_block_super+0x2b/0x60
 kill_f2fs_super+0x87/0x110
 deactivate_locked_super+0x39/0x80
 deactivate_super+0x46/0x50
 cleanup_mnt+0x109/0x170
 __cleanup_mnt+0x16/0x20
 task_work_run+0x65/0xa0
 exit_to_user_mode_prepare+0x175/0x190
 syscall_exit_to_user_mode+0x25/0x50
 do_syscall_64+0x4c/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

During umount(), if cp_error is set, f2fs_wait_on_all_pages() should
not stop waiting all F2FS_WB_CP_DATA pages to be writebacked, otherwise,
fsync_node_num can be non-zero after f2fs_wait_on_all_pages() causing
this bug.

In this case, to avoid deadloop in f2fs_wait_on_all_pages(), it needs
to drop all dirty pages rather than redirtying them.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2023-04-10 11:03:02 -07:00
..
acl.c fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap 2023-01-19 09:24:29 +01:00
acl.h fs: port ->set_acl() to pass mnt_idmap 2023-01-19 09:24:27 +01:00
checkpoint.c f2fs: fix to drop all dirty pages during umount() if cp_error is set 2023-04-10 11:03:02 -07:00
compress.c f2fs: merge lz4hc_compress_pages() to lz4_compress_pages() 2023-04-10 10:58:45 -07:00
data.c f2fs: fix to drop all dirty pages during umount() if cp_error is set 2023-04-10 11:03:02 -07:00
debug.c f2fs: convert to MAX_SBI_FLAG instead of 32 in stat_show() 2023-03-29 15:17:39 -07:00
dir.c f2fs: use common implementation of file type 2023-04-10 10:58:45 -07:00
extent_cache.c f2fs: remove entire rb_entry sharing 2023-03-29 15:17:38 -07:00
f2fs.h f2fs: remove unneeded in-memory i_crtime copy 2023-04-10 11:00:58 -07:00
file.c f2fs: preserve direct write semantics when buffering is forced 2023-03-29 15:17:39 -07:00
gc.c f2fs: Fix system crash due to lack of free space in LFS 2023-04-10 10:58:45 -07:00
gc.h f2fs: Fix system crash due to lack of free space in LFS 2023-04-10 10:58:45 -07:00
hash.c f2fs: don't use casefolded comparison for "." and ".." 2022-05-17 11:19:23 -07:00
inline.c f2fs: use common implementation of file type 2023-04-10 10:58:45 -07:00
inode.c f2fs: remove unneeded in-memory i_crtime copy 2023-04-10 11:00:58 -07:00
iostat.c f2fs: use iostat_lat_type directly as a parameter in the iostat_update_and_unbind_ctx() 2023-02-07 10:39:28 -08:00
iostat.h f2fs: use iostat_lat_type directly as a parameter in the iostat_update_and_unbind_ctx() 2023-02-07 10:39:28 -08:00
Kconfig f2fs: introduce F2FS_UNFAIR_RWSEM to support unfair rwsem 2022-03-04 09:15:53 -08:00
Makefile f2fs: separate out iostat feature 2021-08-23 10:25:51 -07:00
namei.c f2fs: convert is_extension_exist() to return bool type 2023-04-04 13:57:29 -07:00
node.c f2fs-for-6.3-rc1 2023-02-27 16:18:51 -08:00
node.h f2fs: convert to use bitmap API 2023-03-29 15:17:37 -07:00
recovery.c fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap 2023-01-19 09:24:29 +01:00
segment.c f2fs: remove struct victim_selection default_v_ops 2023-04-10 10:58:44 -07:00
segment.h f2fs: Fix system crash due to lack of free space in LFS 2023-04-10 10:58:45 -07:00
shrinker.c f2fs: add block_age-based extent cache 2022-12-12 14:53:56 -08:00
super.c f2fs: use f2fs_hw_is_readonly() instead of bdev_read_only() 2023-04-10 11:00:31 -07:00
sysfs.c f2fs: convert to use sysfs_emit 2023-04-10 10:58:45 -07:00
verity.c f2fs-for-6.3-rc1 2023-02-27 16:18:51 -08:00
xattr.c fs: port inode_owner_or_capable() to mnt_idmap 2023-01-19 09:24:29 +01:00
xattr.h f2fs: code cleanup by removing ifdef macro surrounding 2020-05-26 18:56:10 -07:00