| Message ID | 20200327232717.15331-12-fllinden@amazon.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | NFS server user xattr support (RFC8276) | expand |
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 4c4508f1bb8e..5acf719c0451 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -3229,6 +3229,15 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, } #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;
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> --- fs/nfsd/nfs4xdr.c | 9 +++++++++ 1 file changed, 9 insertions(+)