diff options
| author |   Jaegeuk Kim <jaegeuk@kernel.org> | 2018-07-06 16:47:34 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-07-15 12:14:04 +0900 |
| commit | 1cb50f87e10696e8cc61fb62d0d948e11b0e6dc1 (patch) | |
| tree | 9e7c61605122c9eafbd7094cbdcef076998f242f /fs/f2fs | |
| parent | f2fs: allow wrong configured dio to buffered write (diff) | |
| download | linux-dev-1cb50f87e10696e8cc61fb62d0d948e11b0e6dc1.tar.xz linux-dev-1cb50f87e10696e8cc61fb62d0d948e11b0e6dc1.zip | |
f2fs: do checkpoint in kill_sb
When unmounting f2fs in force mode, we can get it stuck by io_schedule()
by some pending IOs in meta_inode.
io_schedule+0xd/0x30
wait_on_page_bit_common+0xc6/0x130
__filemap_fdatawait_range+0xbd/0x100
filemap_fdatawait_keep_errors+0x15/0x40
sync_inodes_sb+0x1cf/0x240
sync_filesystem+0x52/0x90
generic_shutdown_super+0x1d/0x110
kill_f2fs_super+0x28/0x80 [f2fs]
deactivate_locked_super+0x35/0x60
cleanup_mnt+0x36/0x70
task_work_run+0x79/0xa0
exit_to_usermode_loop+0x62/0x70
do_syscall_64+0xdb/0xf0
entry_SYSCALL_64_after_hwframe+0x44/0xa9
0xffffffffffffffff
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 3995e926ba3a..1dc6809fac38 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -3089,9 +3089,19 @@ static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, static void kill_f2fs_super(struct super_block *sb) { if (sb->s_root) { - set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); - f2fs_stop_gc_thread(F2FS_SB(sb)); - f2fs_stop_discard_thread(F2FS_SB(sb)); + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + set_sbi_flag(sbi, SBI_IS_CLOSE); + f2fs_stop_gc_thread(sbi); + f2fs_stop_discard_thread(sbi); + + if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || + !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { + struct cp_control cpc = { + .reason = CP_UMOUNT, + }; + f2fs_write_checkpoint(sbi, &cpc); + } } kill_block_super(sb); } |