summaryrefslogtreecommitdiffstats
path: root/fs/nfsd/vfs.c
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2015-12-03 12:59:52 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2015-12-07 23:12:00 -0500
commitffa0160a103917defd5d9c097ae0455a59166e03 (patch)
treefd4eeefca064c0a072e214fde0262fe8dbbff8a4 /fs/nfsd/vfs.c
parentaa0d6aed45ff48bd41439211f2bda1d54585aba3 (diff)
downloadop-kernel-dev-ffa0160a103917defd5d9c097ae0455a59166e03.zip
op-kernel-dev-ffa0160a103917defd5d9c097ae0455a59166e03.tar.gz
nfsd: implement the NFSv4.2 CLONE operation
This is basically a remote version of the btrfs CLONE operation, so the implementation is fairly trivial. Made even more trivial by stealing the XDR code and general framework Anna Schumaker's COPY prototype. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfsd/vfs.c')
-rw-r--r--fs/nfsd/vfs.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 994d66f..5411bf0 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -36,6 +36,7 @@
#endif /* CONFIG_NFSD_V3 */
#ifdef CONFIG_NFSD_V4
+#include "../internal.h"
#include "acl.h"
#include "idmap.h"
#endif /* CONFIG_NFSD_V4 */
@@ -498,6 +499,13 @@ __be32 nfsd4_set_nfs4_label(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
#endif
+__be32 nfsd4_clone_file_range(struct file *src, u64 src_pos, struct file *dst,
+ u64 dst_pos, u64 count)
+{
+ return nfserrno(vfs_clone_file_range(src, src_pos, dst, dst_pos,
+ count));
+}
+
__be32 nfsd4_vfs_fallocate(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct file *file, loff_t offset, loff_t len,
int flags)
OpenPOWER on IntegriCloud