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gfs2: fix flock panic issue

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Commit 4f6563677a ("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: 4f6563677a ("Move locks API users to locks_lock_inode_wait()")
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Junxiao Bi 2015-12-22 08:06:08 -06:00 committed by Bob Peterson
parent 6cc4b6e801
commit a93a998382
1 changed files with 4 additions and 1 deletions
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5
fs/gfs2/file.c
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@ -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 {