[PATCH 04/12] gfs2: properly initial file_lock used for unlock.

NeilBrown
2018-11-05T01:32:07Z

Rather than assuming all-zeros is sufficient, use the available API to
initialize the file_lock structure use for unlock.
VFS-level changes will soon make it important that the
list_heads in file_lock are always properly initialized.

Signed-off-by: NeilBrown <neilb@suse.com>
---
fs/gfs2/file.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 45a17b770d97..271f847705e3 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -1199,13 +1199,13 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
mutex_lock(&fp->f_fl_mutex);

if (gfs2_holder_initialized(fl_gh)) {
+ struct file_lock request;
if (fl_gh->gh_state == state)
goto out;
- locks_lock_file_wait(file,
- &(struct file_lock) {
- .fl_type = F_UNLCK,
- .fl_flags = FL_FLOCK
- });
+ locks_init_lock(&request);
+ request.fl_type = F_UNLOCK;
+ request.fl_flags = FL_FLOCK;
+ locks_lock_file_wait(file, &request);
gfs2_glock_dq(fl_gh);
gfs2_holder_reinit(state, flags, fl_gh);
} else {