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Commit 2e2f756f authored by Jeff Layton's avatar Jeff Layton
Browse files

locks: fix list insertion when lock is split in two 



In the case where we're splitting a lock in two, the current code
the new "left" lock in the incorrect spot. It's inserted just
before "right" when it should instead be inserted just before the
new lock.

When we add a new lock, set "fl" to that value so that we can
add "left" before it.

Reported-by: default avatarAl Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: default avatarJeff Layton <jeff.layton@primarydata.com>
parent 267f1128

fs/locks.c

+1 −0
Original line number Diff line number Diff line
@@ -1107,6 +1107,7 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str 
		}

		locks_copy_lock(new_fl, request);

		locks_insert_lock_ctx(new_fl, &fl->fl_list);

		fl = new_fl;

		new_fl = NULL;

	}

	if (right) {