mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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c6c209ceb8
I haven't found an NFSERR_EAGAIN in RFCs 1094, 1813, 7530, or 8881.
None of these RFCs have an NFS status code that match the numeric
value "11".
Based on the meaning of the EAGAIN errno, I presume the use of this
status in NFSD means NFS4ERR_DELAY. So replace the one usage of
nfserr_eagain, and remove it from NFSD's NFS status conversion
tables.
As far as I can tell, NFSERR_EAGAIN has existed since the pre-git
era, but was not actually used by any code until commit f4e44b393389
("NFSD: delay unmount source's export after inter-server copy
completed."), at which time it become possible for NFSD to return
a status code of 11 (which is not valid NFS protocol).
Fixes: f4e44b393389 ("NFSD: delay unmount source's export after inter-server copy completed.")
Cc: stable@vger.kernel.org
Reviewed-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
134 lines
4.3 KiB
C
134 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* NFS protocol definitions
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*
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* This file contains constants mostly for Version 2 of the protocol,
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* but also has a couple of NFSv3 bits in (notably the error codes).
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*/
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#ifndef _UAPI_LINUX_NFS_H
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#define _UAPI_LINUX_NFS_H
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#include <linux/types.h>
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#define NFS_PROGRAM 100003
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#define NFS_PORT 2049
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#define NFS_RDMA_PORT 20049
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#define NFS_MAXDATA 8192
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#define NFS_MAXPATHLEN 1024
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#define NFS_MAXNAMLEN 255
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#define NFS_MAXGROUPS 16
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#define NFS_FHSIZE 32
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#define NFS_COOKIESIZE 4
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#define NFS_FIFO_DEV (-1)
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#define NFSMODE_FMT 0170000
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#define NFSMODE_DIR 0040000
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#define NFSMODE_CHR 0020000
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#define NFSMODE_BLK 0060000
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#define NFSMODE_REG 0100000
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#define NFSMODE_LNK 0120000
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#define NFSMODE_SOCK 0140000
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#define NFSMODE_FIFO 0010000
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#define NFS_MNT_PROGRAM 100005
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#define NFS_MNT_VERSION 1
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#define NFS_MNT3_VERSION 3
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#define NFS_PIPE_DIRNAME "nfs"
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/*
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* NFS stats. The good thing with these values is that NFSv3 errors are
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* a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
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* no-one uses anyway), so we can happily mix code as long as we make sure
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* no NFSv3 errors are returned to NFSv2 clients.
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* Error codes that have a `--' in the v2 column are not part of the
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* standard, but seem to be widely used nevertheless.
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*/
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enum nfs_stat {
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NFS_OK = 0, /* v2 v3 v4 */
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NFSERR_PERM = 1, /* v2 v3 v4 */
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NFSERR_NOENT = 2, /* v2 v3 v4 */
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NFSERR_IO = 5, /* v2 v3 v4 */
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NFSERR_NXIO = 6, /* v2 v3 v4 */
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NFSERR_ACCES = 13, /* v2 v3 v4 */
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NFSERR_EXIST = 17, /* v2 v3 v4 */
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NFSERR_XDEV = 18, /* v3 v4 */
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NFSERR_NODEV = 19, /* v2 v3 v4 */
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NFSERR_NOTDIR = 20, /* v2 v3 v4 */
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NFSERR_ISDIR = 21, /* v2 v3 v4 */
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NFSERR_INVAL = 22, /* v2 v3 v4 */
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NFSERR_FBIG = 27, /* v2 v3 v4 */
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NFSERR_NOSPC = 28, /* v2 v3 v4 */
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NFSERR_ROFS = 30, /* v2 v3 v4 */
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NFSERR_MLINK = 31, /* v3 v4 */
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NFSERR_NAMETOOLONG = 63, /* v2 v3 v4 */
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NFSERR_NOTEMPTY = 66, /* v2 v3 v4 */
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NFSERR_DQUOT = 69, /* v2 v3 v4 */
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NFSERR_STALE = 70, /* v2 v3 v4 */
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NFSERR_REMOTE = 71, /* v2 v3 */
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NFSERR_WFLUSH = 99, /* v2 */
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NFSERR_BADHANDLE = 10001, /* v3 v4 */
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NFSERR_NOT_SYNC = 10002, /* v3 */
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NFSERR_BAD_COOKIE = 10003, /* v3 v4 */
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NFSERR_NOTSUPP = 10004, /* v3 v4 */
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NFSERR_TOOSMALL = 10005, /* v3 v4 */
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NFSERR_SERVERFAULT = 10006, /* v3 v4 */
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NFSERR_BADTYPE = 10007, /* v3 v4 */
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NFSERR_JUKEBOX = 10008, /* v3 v4 */
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NFSERR_SAME = 10009, /* v4 */
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NFSERR_DENIED = 10010, /* v4 */
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NFSERR_EXPIRED = 10011, /* v4 */
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NFSERR_LOCKED = 10012, /* v4 */
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NFSERR_GRACE = 10013, /* v4 */
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NFSERR_FHEXPIRED = 10014, /* v4 */
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NFSERR_SHARE_DENIED = 10015, /* v4 */
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NFSERR_WRONGSEC = 10016, /* v4 */
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NFSERR_CLID_INUSE = 10017, /* v4 */
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NFSERR_RESOURCE = 10018, /* v4 */
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NFSERR_MOVED = 10019, /* v4 */
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NFSERR_NOFILEHANDLE = 10020, /* v4 */
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NFSERR_MINOR_VERS_MISMATCH = 10021, /* v4 */
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NFSERR_STALE_CLIENTID = 10022, /* v4 */
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NFSERR_STALE_STATEID = 10023, /* v4 */
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NFSERR_OLD_STATEID = 10024, /* v4 */
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NFSERR_BAD_STATEID = 10025, /* v4 */
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NFSERR_BAD_SEQID = 10026, /* v4 */
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NFSERR_NOT_SAME = 10027, /* v4 */
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NFSERR_LOCK_RANGE = 10028, /* v4 */
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NFSERR_SYMLINK = 10029, /* v4 */
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NFSERR_RESTOREFH = 10030, /* v4 */
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NFSERR_LEASE_MOVED = 10031, /* v4 */
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NFSERR_ATTRNOTSUPP = 10032, /* v4 */
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NFSERR_NO_GRACE = 10033, /* v4 */
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NFSERR_RECLAIM_BAD = 10034, /* v4 */
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NFSERR_RECLAIM_CONFLICT = 10035,/* v4 */
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NFSERR_BAD_XDR = 10036, /* v4 */
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NFSERR_LOCKS_HELD = 10037, /* v4 */
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NFSERR_OPENMODE = 10038, /* v4 */
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NFSERR_BADOWNER = 10039, /* v4 */
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NFSERR_BADCHAR = 10040, /* v4 */
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NFSERR_BADNAME = 10041, /* v4 */
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NFSERR_BAD_RANGE = 10042, /* v4 */
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NFSERR_LOCK_NOTSUPP = 10043, /* v4 */
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NFSERR_OP_ILLEGAL = 10044, /* v4 */
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NFSERR_DEADLOCK = 10045, /* v4 */
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NFSERR_FILE_OPEN = 10046, /* v4 */
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NFSERR_ADMIN_REVOKED = 10047, /* v4 */
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NFSERR_CB_PATH_DOWN = 10048, /* v4 */
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};
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/* NFSv2 file types - beware, these are not the same in NFSv3 */
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enum nfs_ftype {
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NFNON = 0,
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NFREG = 1,
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NFDIR = 2,
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NFBLK = 3,
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NFCHR = 4,
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NFLNK = 5,
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NFSOCK = 6,
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NFBAD = 7,
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NFFIFO = 8
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};
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#endif /* _UAPI_LINUX_NFS_H */
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