Btrfs: check for read permission on src file in the clone ioctl
authorDan Rosenberg <dan.j.rosenberg@gmail.com>
Sat, 15 May 2010 15:27:37 +0000 (11:27 -0400)
committerChris Mason <chris.mason@oracle.com>
Sat, 15 May 2010 16:05:50 +0000 (12:05 -0400)
commit5dc6416414fb3ec6e2825fd4d20c8bf1d7fe0395
treee15101a2d1302ff6f2830f282197b34060ec963c
parent9f680ce04ea19dabbbafe01b57b61930a9b70741
Btrfs: check for read permission on src file in the clone ioctl

The existing code would have allowed you to clone a file that was
only open for writing

Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/ioctl.c