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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-02-08 13:42:21 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-02-08 13:42:21 -0800 |
| commit | d50dfc0c7df7bf037442045fbe63952ae0c4ce46 (patch) | |
| tree | 23e47dcde1642156a1442420b8c611d166aae511 /fs/f2fs/super.c | |
| parent | e65920661708b7c0f3db45c9cd5d0095034ee37f (diff) | |
| download | linux-d50dfc0c7df7bf037442045fbe63952ae0c4ce46.tar.bz2 | |
f2fs: don't grab superblock freeze for flush/ckpt thread
There are controlled by f2fs_freeze().
This fixes xfstests/generic/068 which is stuck at
task:f2fs_ckpt-252:3 state:D stack: 0 pid: 5761 ppid: 2 flags:0x00004000
Call Trace:
__schedule+0x44c/0x8a0
schedule+0x4f/0xc0
percpu_rwsem_wait+0xd8/0x140
? percpu_down_write+0xf0/0xf0
__percpu_down_read+0x56/0x70
issue_checkpoint_thread+0x12c/0x160 [f2fs]
? wait_woken+0x80/0x80
kthread+0x114/0x150
? __checkpoint_and_complete_reqs+0x110/0x110 [f2fs]
? kthread_park+0x90/0x90
ret_from_fork+0x22/0x30
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 1000d21120ca..4aa533cb4340 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1472,6 +1472,10 @@ static int f2fs_freeze(struct super_block *sb) /* must be clean, since sync_filesystem() was already called */ if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) return -EINVAL; + + /* ensure no checkpoint required */ + if (!llist_empty(&F2FS_SB(sb)->cprc_info.issue_list)) + return -EINVAL; return 0; } |