Btrfs: add dummy extent if dst offset excceeds file end in
authorLi Zefan <lizf@cn.fujitsu.com>
Sun, 11 Sep 2011 14:52:25 +0000 (10:52 -0400)
committerChris Mason <chris.mason@oracle.com>
Sun, 11 Sep 2011 14:52:25 +0000 (10:52 -0400)
You can see there's no file extent with range [0, 4096]. Check this by
btrfsck:

 # btrfsck /dev/sda7
 root 5 inode 258 errors 100
 ...

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

Simple merge