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authorChristoph Hellwig <hch@lst.de>2015-12-03 12:59:52 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2015-12-08 05:12:00 +0100
commitffa0160a103917defd5d9c097ae0455a59166e03 (patch)
treefd4eeefca064c0a072e214fde0262fe8dbbff8a4 /fs/nfsd/vfs.h
parentnfsd: Pass filehandle to nfs4_preprocess_stateid_op() (diff)
downloadlinux-ffa0160a103917defd5d9c097ae0455a59166e03.tar.xz
linux-ffa0160a103917defd5d9c097ae0455a59166e03.zip
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.h')
-rw-r--r--fs/nfsd/vfs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index fcfc48cbe136..c11ba316f23f 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -56,6 +56,8 @@ __be32 nfsd4_set_nfs4_label(struct svc_rqst *, struct svc_fh *,
struct xdr_netobj *);
__be32 nfsd4_vfs_fallocate(struct svc_rqst *, struct svc_fh *,
struct file *, loff_t, loff_t, int);
+__be32 nfsd4_clone_file_range(struct file *, u64, struct file *,
+ u64, u64);
#endif /* CONFIG_NFSD_V4 */
__be32 nfsd_create(struct svc_rqst *, struct svc_fh *,
char *name, int len, struct iattr *attrs,