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authorTao Ma2010-01-27 10:21:52 +0800
committerJoel Becker2010-02-02 18:56:37 -0800
commit34e6c59af06cbca07b1490ec0015ea2d303470d3 (patch)
tree1b1199825cf9f658d1abd433ff0d6b0d9f22c1de /fs/ocfs2/ocfs2_lockid.h
parentcd34edd8cf80b507bb84b3f0c2988fe05099ffb5 (diff)
ocfs2: Use compat_ptr in reflink_arguments.
Although we use u64 to pass userspace pointers to the kernel to avoid compat_ioctl, it doesn't work in some ppc platform. So wrap them with compat_ptr and add compat_ioctl. The detailed discussion about compat_ptr can be found in thread http://lkml.org/lkml/2009/10/27/423. We indeed met with a bug when testing on ppc(-EFAULT is returned when using old_path). This patch try to fix this. I have tested in ppc64(with 32 bit reflink) and x86_64(with i686 reflink), both works. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/ocfs2_lockid.h')
0 files changed, 0 insertions, 0 deletions