diff options
| author | Frank van der Linden <fllinden@amazon.com> | 2020-06-23 22:39:27 +0000 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2020-07-13 17:27:03 -0400 |
| commit | 0e885e846d96df0c8a4a829b1ad355a82ccda656 (patch) | |
| tree | 08ac41074161275357704e8ba229345138ffcca6 /fs/nfsd/nfs4xdr.c | |
| parent | 23e50fe3a5e6045a573c69d4b0e3d78aa6183323 (diff) | |
nfsd: add fattr support for user extended attributes
Check if user extended attributes are supported for an inode,
and return the answer when being queried for file attributes.
An exported filesystem can now signal its RFC8276 user extended
attributes capability.
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 8bacc0ceae19..259d5ad0e3f4 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -3213,6 +3213,15 @@ out_acl: } #endif + if (bmval2 & FATTR4_WORD2_XATTR_SUPPORT) { + p = xdr_reserve_space(xdr, 4); + if (!p) + goto out_resource; + err = xattr_supported_namespace(d_inode(dentry), + XATTR_USER_PREFIX); + *p++ = cpu_to_be32(err == 0); + } + attrlen = htonl(xdr->buf->len - attrlen_offset - 4); write_bytes_to_xdr_buf(xdr->buf, attrlen_offset, &attrlen, 4); status = nfs_ok; |