diff options
| author | Christoph Hellwig <hch@lst.de> | 2015-12-03 12:59:52 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-12-07 23:12:00 -0500 |
| commit | ffa0160a103917defd5d9c097ae0455a59166e03 (patch) | |
| tree | fd4eeefca064c0a072e214fde0262fe8dbbff8a4 /fs/nfsd/vfs.c | |
| parent | aa0d6aed45ff48bd41439211f2bda1d54585aba3 (diff) | |
| download | op-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.c | 8 |
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) |
