Btrfs: copy string correctly in INO_LOOKUP ioctl
authorLi Zefan <lizf@cn.fujitsu.com>
Thu, 14 Jul 2011 03:16:00 +0000 (03:16 +0000)
committerChris Mason <chris.mason@oracle.com>
Mon, 1 Aug 2011 18:30:45 +0000 (14:30 -0400)
Memory areas [ptr, ptr+total_len] and [name, name+total_len]
may overlap, so it's wrong to use memcpy().

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

Simple merge