Skip to content

L
linux
Commit fce7913b authored by Chuck Lever's avatar Chuck Lever
Browse files
Options

NFSD: Use a bitmask loop to encode FATTR4 results 

The fattr4 encoder is now structured like the COMPOUND op encoder:
one function for each individual attribute, called by bit number.
Benefits include:

- The individual attributes are now guaranteed to be encoded in
  bitmask order into the send buffer

- There can be no unwanted side effects between attribute encoders

- The code now clearly documents which attributes are /not/
  implemented on this server
Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent be46e695
Hide whitespace changes
Inline Side-by-side
Showing with 146 additions and 287 deletions
fs/nfsd/nfs4xdr.c
View file @ fce7913b
......@@ -2903,6 +2903,15 @@ struct nfsd4_fattr_args {
bool ignore_crossmnt;
};
typedef __be32(*nfsd4_enc_attr)(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args);
static __be32 nfsd4_encode_fattr4__noop(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args)
{
return nfs_ok;
}
static __be32 nfsd4_encode_fattr4__true(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args)
{
......@@ -3355,6 +3364,108 @@ static __be32 nfsd4_encode_fattr4_xattr_support(struct xdr_stream *xdr,
return nfsd4_encode_bool(xdr, err == 0);
}
static const nfsd4_enc_attr nfsd4_enc_fattr4_encode_ops[] = {
[FATTR4_SUPPORTED_ATTRS] = nfsd4_encode_fattr4_supported_attrs,
[FATTR4_TYPE] = nfsd4_encode_fattr4_type,
[FATTR4_FH_EXPIRE_TYPE] = nfsd4_encode_fattr4_fh_expire_type,
[FATTR4_CHANGE] = nfsd4_encode_fattr4_change,
[FATTR4_SIZE] = nfsd4_encode_fattr4_size,
[FATTR4_LINK_SUPPORT] = nfsd4_encode_fattr4__true,
[FATTR4_SYMLINK_SUPPORT] = nfsd4_encode_fattr4__true,
[FATTR4_NAMED_ATTR] = nfsd4_encode_fattr4__false,
[FATTR4_FSID] = nfsd4_encode_fattr4_fsid,
[FATTR4_UNIQUE_HANDLES] = nfsd4_encode_fattr4__true,
[FATTR4_LEASE_TIME] = nfsd4_encode_fattr4_lease_time,
[FATTR4_RDATTR_ERROR] = nfsd4_encode_fattr4_rdattr_error,
[FATTR4_ACL] = nfsd4_encode_fattr4_acl,
[FATTR4_ACLSUPPORT] = nfsd4_encode_fattr4_aclsupport,
[FATTR4_ARCHIVE] = nfsd4_encode_fattr4__noop,
[FATTR4_CANSETTIME] = nfsd4_encode_fattr4__true,
[FATTR4_CASE_INSENSITIVE] = nfsd4_encode_fattr4__false,
[FATTR4_CASE_PRESERVING] = nfsd4_encode_fattr4__true,
[FATTR4_CHOWN_RESTRICTED] = nfsd4_encode_fattr4__true,
[FATTR4_FILEHANDLE] = nfsd4_encode_fattr4_filehandle,
[FATTR4_FILEID] = nfsd4_encode_fattr4_fileid,
[FATTR4_FILES_AVAIL] = nfsd4_encode_fattr4_files_avail,
[FATTR4_FILES_FREE] = nfsd4_encode_fattr4_files_free,
[FATTR4_FILES_TOTAL] = nfsd4_encode_fattr4_files_total,
[FATTR4_FS_LOCATIONS] = nfsd4_encode_fattr4_fs_locations,
[FATTR4_HIDDEN] = nfsd4_encode_fattr4__noop,
[FATTR4_HOMOGENEOUS] = nfsd4_encode_fattr4__true,
[FATTR4_MAXFILESIZE] = nfsd4_encode_fattr4_maxfilesize,
[FATTR4_MAXLINK] = nfsd4_encode_fattr4_maxlink,
[FATTR4_MAXNAME] = nfsd4_encode_fattr4_maxname,
[FATTR4_MAXREAD] = nfsd4_encode_fattr4_maxread,
[FATTR4_MAXWRITE] = nfsd4_encode_fattr4_maxwrite,
[FATTR4_MIMETYPE] = nfsd4_encode_fattr4__noop,
[FATTR4_MODE] = nfsd4_encode_fattr4_mode,
[FATTR4_NO_TRUNC] = nfsd4_encode_fattr4__true,
[FATTR4_NUMLINKS] = nfsd4_encode_fattr4_numlinks,
[FATTR4_OWNER] = nfsd4_encode_fattr4_owner,
[FATTR4_OWNER_GROUP] = nfsd4_encode_fattr4_owner_group,
[FATTR4_QUOTA_AVAIL_HARD] = nfsd4_encode_fattr4__noop,
[FATTR4_QUOTA_AVAIL_SOFT] = nfsd4_encode_fattr4__noop,
[FATTR4_QUOTA_USED] = nfsd4_encode_fattr4__noop,
[FATTR4_RAWDEV] = nfsd4_encode_fattr4_rawdev,
[FATTR4_SPACE_AVAIL] = nfsd4_encode_fattr4_space_avail,
[FATTR4_SPACE_FREE] = nfsd4_encode_fattr4_space_free,
[FATTR4_SPACE_TOTAL] = nfsd4_encode_fattr4_space_total,
[FATTR4_SPACE_USED] = nfsd4_encode_fattr4_space_used,
[FATTR4_SYSTEM] = nfsd4_encode_fattr4__noop,
[FATTR4_TIME_ACCESS] = nfsd4_encode_fattr4_time_access,
[FATTR4_TIME_ACCESS_SET] = nfsd4_encode_fattr4__noop,
[FATTR4_TIME_BACKUP] = nfsd4_encode_fattr4__noop,
[FATTR4_TIME_CREATE] = nfsd4_encode_fattr4_time_create,
[FATTR4_TIME_DELTA] = nfsd4_encode_fattr4_time_delta,
[FATTR4_TIME_METADATA] = nfsd4_encode_fattr4_time_metadata,
[FATTR4_TIME_MODIFY] = nfsd4_encode_fattr4_time_modify,
[FATTR4_TIME_MODIFY_SET] = nfsd4_encode_fattr4__noop,
[FATTR4_MOUNTED_ON_FILEID] = nfsd4_encode_fattr4_mounted_on_fileid,
[FATTR4_DIR_NOTIF_DELAY] = nfsd4_encode_fattr4__noop,
[FATTR4_DIRENT_NOTIF_DELAY] = nfsd4_encode_fattr4__noop,
[FATTR4_DACL] = nfsd4_encode_fattr4__noop,
[FATTR4_SACL] = nfsd4_encode_fattr4__noop,
[FATTR4_CHANGE_POLICY] = nfsd4_encode_fattr4__noop,
[FATTR4_FS_STATUS] = nfsd4_encode_fattr4__noop,
#ifdef CONFIG_NFSD_PNFS
[FATTR4_FS_LAYOUT_TYPES] = nfsd4_encode_fattr4_fs_layout_types,
[FATTR4_LAYOUT_HINT] = nfsd4_encode_fattr4__noop,
[FATTR4_LAYOUT_TYPES] = nfsd4_encode_fattr4_layout_types,
[FATTR4_LAYOUT_BLKSIZE] = nfsd4_encode_fattr4_layout_blksize,
[FATTR4_LAYOUT_ALIGNMENT] = nfsd4_encode_fattr4__noop,
#else
[FATTR4_FS_LAYOUT_TYPES] = nfsd4_encode_fattr4__noop,
[FATTR4_LAYOUT_HINT] = nfsd4_encode_fattr4__noop,
[FATTR4_LAYOUT_TYPES] = nfsd4_encode_fattr4__noop,
[FATTR4_LAYOUT_BLKSIZE] = nfsd4_encode_fattr4__noop,
[FATTR4_LAYOUT_ALIGNMENT] = nfsd4_encode_fattr4__noop,
#endif
[FATTR4_FS_LOCATIONS_INFO] = nfsd4_encode_fattr4__noop,
[FATTR4_MDSTHRESHOLD] = nfsd4_encode_fattr4__noop,
[FATTR4_RETENTION_GET] = nfsd4_encode_fattr4__noop,
[FATTR4_RETENTION_SET] = nfsd4_encode_fattr4__noop,
[FATTR4_RETENTEVT_GET] = nfsd4_encode_fattr4__noop,
[FATTR4_RETENTEVT_SET] = nfsd4_encode_fattr4__noop,
[FATTR4_RETENTION_HOLD] = nfsd4_encode_fattr4__noop,
[FATTR4_MODE_SET_MASKED] = nfsd4_encode_fattr4__noop,
[FATTR4_SUPPATTR_EXCLCREAT] = nfsd4_encode_fattr4_suppattr_exclcreat,
[FATTR4_FS_CHARSET_CAP] = nfsd4_encode_fattr4__noop,
[FATTR4_CLONE_BLKSIZE] = nfsd4_encode_fattr4__noop,
[FATTR4_SPACE_FREED] = nfsd4_encode_fattr4__noop,
[FATTR4_CHANGE_ATTR_TYPE] = nfsd4_encode_fattr4__noop,
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
[FATTR4_SEC_LABEL] = nfsd4_encode_fattr4_sec_label,
#else
[FATTR4_SEC_LABEL] = nfsd4_encode_fattr4__noop,
#endif
[FATTR4_MODE_UMASK] = nfsd4_encode_fattr4__noop,
[FATTR4_XATTR_SUPPORT] = nfsd4_encode_fattr4_xattr_support,
};
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
......@@ -3362,13 +3473,10 @@ static __be32 nfsd4_encode_fattr4_xattr_support(struct xdr_stream *xdr,
static __be32
nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
struct svc_export *exp,
struct dentry *dentry, u32 *bmval,
struct dentry *dentry, const u32 *bmval,
struct svc_rqst *rqstp, int ignore_crossmnt)
{
struct nfsd4_fattr_args args;
u32 bmval0 = bmval[0];
u32 bmval1 = bmval[1];
u32 bmval2 = bmval[2];
struct svc_fh *tempfh = NULL;
int starting_len = xdr->buf->len;
__be32 *attrlen_p, status;
......@@ -3380,26 +3488,39 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
.mnt = exp->ex_path.mnt,
.dentry = dentry,
};
union {
u32 attrmask[3];
unsigned long mask[2];
} u;
bool file_modified;
unsigned long bit;
u64 size = 0;
BUG_ON(bmval1 & NFSD_WRITEONLY_ATTRS_WORD1);
BUG_ON(!nfsd_attrs_supported(minorversion, bmval));
WARN_ON_ONCE(bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1);
WARN_ON_ONCE(!nfsd_attrs_supported(minorversion, bmval));
args.rqstp = rqstp;
args.exp = exp;
args.dentry = dentry;
args.ignore_crossmnt = (ignore_crossmnt != 0);
/*
* Make a local copy of the attribute bitmap that can be modified.
*/
memset(&u, 0, sizeof(u));
u.attrmask[0] = bmval[0];
u.attrmask[1] = bmval[1];
u.attrmask[2] = bmval[2];
args.rdattr_err = 0;
if (exp->ex_fslocs.migrated) {
status = fattr_handle_absent_fs(&bmval0, &bmval1, &bmval2,
&args.rdattr_err);
status = fattr_handle_absent_fs(&u.attrmask[0], &u.attrmask[1],
&u.attrmask[2], &args.rdattr_err);
if (status)
goto out;
}
args.size = 0;
if (bmval0 & (FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE)) {
if (u.attrmask[0] & (FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE)) {
status = nfsd4_deleg_getattr_conflict(rqstp, d_inode(dentry),
&file_modified, &size);
if (status)
......@@ -3415,16 +3536,17 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
if (!(args.stat.result_mask & STATX_BTIME))
/* underlying FS does not offer btime so we can't share it */
bmval1 &= ~FATTR4_WORD1_TIME_CREATE;
if ((bmval0 & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
u.attrmask[1] &= ~FATTR4_WORD1_TIME_CREATE;
if ((u.attrmask[0] & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_MAXNAME)) ||
(bmval1 & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
(u.attrmask[1] & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
FATTR4_WORD1_SPACE_TOTAL))) {
err = vfs_statfs(&path, &args.statfs);
if (err)
goto out_nfserr;
}
if ((bmval0 & (FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FSID)) && !fhp) {
if ((u.attrmask[0] & (FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FSID)) &&
!fhp) {
tempfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);
status = nfserr_jukebox;
if (!tempfh)
......@@ -3438,10 +3560,10 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
args.fhp = fhp;
args.acl = NULL;
if (bmval0 & FATTR4_WORD0_ACL) {
if (u.attrmask[0] & FATTR4_WORD0_ACL) {
err = nfsd4_get_nfs4_acl(rqstp, dentry, &args.acl);
if (err == -EOPNOTSUPP)
bmval0 &= ~FATTR4_WORD0_ACL;
u.attrmask[0] &= ~FATTR4_WORD0_ACL;
else if (err == -EINVAL) {
status = nfserr_attrnotsupp;
goto out;
......@@ -3453,24 +3575,25 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
args.context = NULL;
if ((bmval2 & FATTR4_WORD2_SECURITY_LABEL) ||
bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
if ((u.attrmask[2] & FATTR4_WORD2_SECURITY_LABEL) ||
u.attrmask[0] & FATTR4_WORD0_SUPPORTED_ATTRS) {
if (exp->ex_flags & NFSEXP_SECURITY_LABEL)
err = security_inode_getsecctx(d_inode(dentry),
&args.context, &args.contextlen);
else
err = -EOPNOTSUPP;
args.contextsupport = (err == 0);
if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
if (u.attrmask[2] & FATTR4_WORD2_SECURITY_LABEL) {
if (err == -EOPNOTSUPP)
bmval2 &= ~FATTR4_WORD2_SECURITY_LABEL;
u.attrmask[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
else if (err)
goto out_nfserr;
}
}
#endif /* CONFIG_NFSD_V4_SECURITY_LABEL */
status = nfsd4_encode_bitmap4(xdr, bmval0, bmval1, bmval2);
status = nfsd4_encode_bitmap4(xdr, u.attrmask[0],
u.attrmask[1], u.attrmask[2]);
if (status)
goto out;
......@@ -3478,276 +3601,12 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
attrlen_p = xdr_reserve_space(xdr, XDR_UNIT);
if (!attrlen_p)
goto out_resource;
if (bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
status = nfsd4_encode_fattr4_supported_attrs(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_TYPE) {
status = nfsd4_encode_fattr4_type(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FH_EXPIRE_TYPE) {
status = nfsd4_encode_fattr4_fh_expire_type(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_CHANGE) {
status = nfsd4_encode_fattr4_change(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_SIZE) {
status = nfsd4_encode_fattr4_size(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_LINK_SUPPORT) {
status = nfsd4_encode_fattr4__true(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_SYMLINK_SUPPORT) {
status = nfsd4_encode_fattr4__true(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_NAMED_ATTR) {
status = nfsd4_encode_fattr4__false(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FSID) {
status = nfsd4_encode_fattr4_fsid(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_UNIQUE_HANDLES) {
status = nfsd4_encode_fattr4__false(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_LEASE_TIME) {
status = nfsd4_encode_fattr4_lease_time(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_RDATTR_ERROR) {
status = nfsd4_encode_fattr4_rdattr_error(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_ACL) {
status = nfsd4_encode_fattr4_acl(xdr, &args);
if (status)
goto out;
}
if (bmval0 & FATTR4_WORD0_ACLSUPPORT) {
status = nfsd4_encode_fattr4_aclsupport(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_CANSETTIME) {
status = nfsd4_encode_fattr4__true(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_CASE_INSENSITIVE) {
status = nfsd4_encode_fattr4__false(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_CASE_PRESERVING) {
status = nfsd4_encode_fattr4__true(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_CHOWN_RESTRICTED) {
status = nfsd4_encode_fattr4__true(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FILEHANDLE) {
status = nfsd4_encode_fattr4_filehandle(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FILEID) {
status = nfsd4_encode_fattr4_fileid(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FILES_AVAIL) {
status = nfsd4_encode_fattr4_files_avail(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FILES_FREE) {
status = nfsd4_encode_fattr4_files_free(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FILES_TOTAL) {
status = nfsd4_encode_fattr4_files_total(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FS_LOCATIONS) {
status = nfsd4_encode_fattr4_fs_locations(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_HOMOGENEOUS) {
status = nfsd4_encode_fattr4__true(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {
status = nfsd4_encode_fattr4_maxfilesize(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_MAXLINK) {
status = nfsd4_encode_fattr4_maxlink(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_MAXNAME) {
status = nfsd4_encode_fattr4_maxname(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_MAXREAD) {
status = nfsd4_encode_fattr4_maxread(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_MAXWRITE) {
status = nfsd4_encode_fattr4_maxwrite(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_MODE) {
status = nfsd4_encode_fattr4_mode(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_NO_TRUNC) {
status = nfsd4_encode_fattr4__true(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_NUMLINKS) {
status = nfsd4_encode_fattr4_numlinks(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_OWNER) {
status = nfsd4_encode_fattr4_owner(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_OWNER_GROUP) {
status = nfsd4_encode_fattr4_owner_group(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_RAWDEV) {
status = nfsd4_encode_fattr4_rawdev(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_SPACE_AVAIL) {
status = nfsd4_encode_fattr4_space_avail(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_SPACE_FREE) {
status = nfsd4_encode_fattr4_space_free(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_SPACE_TOTAL) {
status = nfsd4_encode_fattr4_space_total(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_SPACE_USED) {
status = nfsd4_encode_fattr4_space_used(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_TIME_ACCESS) {
status = nfsd4_encode_fattr4_time_access(xdr, &args);
if (status)
goto out;
}
if (bmval1 & FATTR4_WORD1_TIME_CREATE) {
status = nfsd4_encode_fattr4_time_create(xdr, &args);
if (status)
goto out;
}
if (bmval1 & FATTR4_WORD1_TIME_DELTA) {
status = nfsd4_encode_fattr4_time_delta(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval1 & FATTR4_WORD1_TIME_METADATA) {
status = nfsd4_encode_fattr4_time_metadata(xdr, &args);
if (status)
goto out;
}
if (bmval1 & FATTR4_WORD1_TIME_MODIFY) {
status = nfsd4_encode_fattr4_time_modify(xdr, &args);
if (status)
goto out;
}
if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
status = nfsd4_encode_fattr4_mounted_on_fileid(xdr, &args);
if (status != nfs_ok)
goto out;
}
#ifdef CONFIG_NFSD_PNFS
if (bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) {
status = nfsd4_encode_fattr4_fs_layout_types(xdr, &args);
if (status)
goto out;
}
if (bmval2 & FATTR4_WORD2_LAYOUT_TYPES) {
status = nfsd4_encode_fattr4_layout_types(xdr, &args);
if (status)
goto out;
}
if (bmval2 & FATTR4_WORD2_LAYOUT_BLKSIZE) {
status = nfsd4_encode_fattr4_layout_blksize(xdr, &args);
for_each_set_bit(bit, (const unsigned long *)&u.mask,
ARRAY_SIZE(nfsd4_enc_fattr4_encode_ops)) {
status = nfsd4_enc_fattr4_encode_ops[bit](xdr, &args);
if (status != nfs_ok)
goto out;
}
#endif /* CONFIG_NFSD_PNFS */
if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
status = nfsd4_encode_fattr4_suppattr_exclcreat(xdr, &args);
if (status)
goto out;
}
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
status = nfsd4_encode_fattr4_sec_label(xdr, &args);
if (status)
goto out;
}
#endif
if (bmval2 & FATTR4_WORD2_XATTR_SUPPORT) {
status = nfsd4_encode_fattr4_xattr_support(xdr, &args);
if (status != nfs_ok)
goto out;
}
*attrlen_p = cpu_to_be32(xdr->buf->len - attrlen_offset - XDR_UNIT);
status = nfs_ok;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7