Messages in this thread Patch in this message | | | From | Li Dong <> | Subject | [PATCH] fs: Fix bug in gfs2_freeze_func that can cause deadlock | Date | Tue, 20 Jun 2023 11:38:39 +0800 |
| |
Function gfs2_freeze_func causes a deadlock,because sd_freeze_mutex was not released when return
Signed-off-by: Li Dong <lidong@vivo.com> --- fs/gfs2/super.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -741,8 +741,10 @@ void gfs2_freeze_func(struct work_struct *work) set_bit(SDF_FROZEN, &sdp->sd_flags); error = gfs2_do_thaw(sdp); - if (error) + if (error) { + mutex_unlock(&sdp->sd_freeze_mutex); goto out; + } clear_bit(SDF_FROZEN, &sdp->sd_flags); -- 2.31.1.windows.1
| |