fs/nfsd/vfs.c

246 	int			host_err;
263 			host_err = nfsd_lookup_parent(rqstp, dparent, &exp, &dentry);
264 			if (host_err)
269 		host_err = PTR_ERR(dentry);
273 			host_err = nfsd_cross_mnt(rqstp, &dentry, &exp);
274 			if (host_err) {
286 	return nfserrno(host_err);
434 	int host_err;
452 		host_err = notify_change(&nop_mnt_idmap, dentry, &size_attr, NULL);
453 		if (host_err)
454 			return host_err;
497 	int		host_err = 0;
528 		host_err = fh_want_write(fhp);
529 		if (host_err)
574 		host_err = __nfsd_setattr(dentry, &attrs);
575 		if (host_err != -EAGAIN || !retries--)
606 	if (!host_err)
607 		host_err = commit_metadata(fhp);
608 	return err != 0 ? err : nfserrno(host_err);
868 	int		host_err = -EPERM;
880 	host_err = nfsd_open_break_lease(inode, may_flags);
881 	if (host_err) /* NOMEM or WOULDBLOCK */
893 		host_err = PTR_ERR(file);
897 	host_err = security_file_post_open(file, may_flags);
898 	if (host_err) {
910 	return host_err;
918 	int host_err;
937 		host_err = __nfsd_open(rqstp, fhp, type, may_flags, filp);
938 		if (host_err == -EOPENSTALE && !retried) {
943 		err = nfserrno(host_err);
1019 			       unsigned long *count, u32 *eof, ssize_t host_err)
1021 	if (host_err >= 0) {
1024 		nfsd_stats_io_read_add(nn, fhp->fh_export, host_err);
1025 		*eof = nfsd_eof_on_read(file, offset, host_err, *count);
1026 		*count = host_err;
1031 		trace_nfsd_read_err(rqstp, fhp, offset, host_err);
1032 		return nfserrno(host_err);
1058 	ssize_t host_err;
1061 	host_err = rw_verify_area(READ, file, &offset, *count);
1062 	if (!host_err)
1063 		host_err = splice_direct_to_actor(file, &sd,
1065 	return nfsd_finish_read(rqstp, fhp, file, offset, count, eof, host_err);
1092 	ssize_t host_err;
1108 	host_err = vfs_iter_read(file, &iter, &ppos, 0);
1109 	return nfsd_finish_read(rqstp, fhp, file, offset, count, eof, host_err);
1162 	int			host_err;
1201 	host_err = vfs_iter_write(file, &iter, &pos, flags);
1202 	if (host_err < 0) {
1203 		commit_reset_write_verifier(nn, rqstp, host_err);
1206 	*cnt = host_err;
1209 	host_err = filemap_check_wb_err(file->f_mapping, since);
1210 	if (host_err < 0)
1214 		host_err = wait_for_concurrent_writes(file);
1215 		if (host_err < 0)
1216 			commit_reset_write_verifier(nn, rqstp, host_err);
1220 	if (host_err >= 0) {
1224 		trace_nfsd_write_err(rqstp, fhp, offset, host_err);
1225 		nfserr = nfserrno(host_err);
1472 	int		host_err;
1492 		host_err = vfs_create(&nop_mnt_idmap, dirp, dchild,
1494 		if (!host_err)
1498 		host_err = vfs_mkdir(&nop_mnt_idmap, dirp, dchild, iap->ia_mode);
1499 		if (!host_err && unlikely(d_unhashed(dchild))) {
1505 				host_err = PTR_ERR(d);
1526 		host_err = vfs_mknod(&nop_mnt_idmap, dirp, dchild,
1532 		host_err = -EINVAL;
1534 	if (host_err < 0)
1544 	err = nfserrno(host_err);
1561 	int		host_err;
1572 	host_err = fh_want_write(fhp);
1573 	if (host_err)
1574 		return nfserrno(host_err);
1578 	host_err = PTR_ERR(dchild);
1580 		err = nfserrno(host_err);
1661 	int		host_err;
1674 	host_err = fh_want_write(fhp);
1675 	if (host_err) {
1676 		err = nfserrno(host_err);
1691 	host_err = vfs_symlink(&nop_mnt_idmap, d_inode(dentry), dnew, path);
1692 	err = nfserrno(host_err);
1720 	int		host_err;
1738 	host_err = fh_want_write(tfhp);
1739 	if (host_err) {
1740 		err = nfserrno(host_err);
1762 	host_err = vfs_link(dold, &nop_mnt_idmap, dirp, dnew, NULL);
1765 	if (!host_err) {
1770 		if (host_err == -EXDEV && rqstp->rq_vers == 2)
1773 			err = nfserrno(host_err);
1819 	int		host_err;
1846 	host_err = fh_want_write(ffhp);
1847 	if (host_err) {
1848 		err = nfserrno(host_err);
1865 	host_err = PTR_ERR(odentry);
1869 	host_err = -ENOENT;
1872 	host_err = -EINVAL;
1877 	host_err = PTR_ERR(ndentry);
1880 	host_err = -ENOTEMPTY;
1900 			host_err = vfs_rename(&rd);
1901 			if (host_err != -EAGAIN || !retries--)
1906 		if (!host_err) {
1907 			host_err = commit_metadata(tfhp);
1908 			if (!host_err)
1909 				host_err = commit_metadata(ffhp);
1917 	err = nfserrno(host_err);
1956 	int		host_err;
1965 	host_err = fh_want_write(fhp);
1966 	if (host_err)
1974 	host_err = PTR_ERR(rdentry);
1980 		host_err = -ENOENT;
1999 			host_err = vfs_unlink(&nop_mnt_idmap, dirp, rdentry, NULL);
2000 			if (host_err != -EAGAIN || !retries--)
2006 		host_err = vfs_rmdir(&nop_mnt_idmap, dirp, rdentry);
2011 	if (!host_err)
2012 		host_err = commit_metadata(fhp);
2019 	if (host_err == -EBUSY) {
2028 		err = nfserrno(host_err);
2089 	int host_err;
2109 		host_err = iterate_dir(file, &buf.ctx);
2111 			host_err = 0;
2113 		if (host_err < 0)
2147 	if (host_err)
2148 		return nfserrno(host_err);