vfs: support FS_XFLAG_COWEXTSIZE and get/set of CoW extent size hint
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 3 Oct 2016 16:11:13 +0000 (09:11 -0700)
committerDarrick J. Wong <darrick.wong@oracle.com>
Mon, 3 Oct 2016 16:11:13 +0000 (09:11 -0700)
commit0a6eab8bd4e0120d49511acbb294797d96ef9e4a
tree75d4eb84877c51938df3a31e217d0c789ab9f7d5
parent155cd433b516506df065866f3d974661f6473572
vfs: support FS_XFLAG_COWEXTSIZE and get/set of CoW extent size hint

Introduce XFLAGs for the new XFS CoW extent size hint, and actually
plumb the CoW extent size hint into the fsxattr structure.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
include/uapi/linux/fs.h