From a93a99838248bdab49db2eaac00236847670bc7f Mon Sep 17 00:00:00 2001 From: Junxiao Bi Date: Tue, 22 Dec 2015 08:06:08 -0600 Subject: [PATCH] gfs2: fix flock panic issue Commit 4f6563677ae8 ("Move locks API users to locks_lock_inode_wait()") moved flock/posix lock identify code to locks_lock_inode_wait(), but missed to set fl_flags to FL_FLOCK which will cause kernel panic in locks_lock_inode_wait(). Fixes: 4f6563677ae8 ("Move locks API users to locks_lock_inode_wait()") Signed-off-by: Junxiao Bi Signed-off-by: Bob Peterson --- fs/gfs2/file.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 860408053c95..7412863cda1e 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -1027,7 +1027,10 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl) if (fl_gh->gh_state == state) goto out; locks_lock_file_wait(file, - &(struct file_lock){.fl_type = F_UNLCK}); + &(struct file_lock) { + .fl_type = F_UNLCK, + .fl_flags = FL_FLOCK + }); gfs2_glock_dq(fl_gh); gfs2_holder_reinit(state, flags, fl_gh); } else { -- 2.20.1