diff options
| author | Jeff Layton <jlayton@kernel.org> | 2022-10-18 07:47:54 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-06 14:45:15 +0000 |
| commit | bfef0cfab41cb4894bc5cf8b93e76327ac04b9b9 (patch) | |
| tree | 360fc48cd6fd96b203d5bf261ddfb31b6d738cf0 | |
| parent | 0a49efb94888b6381d9c43fda17115ffda40a039 (diff) | |
| download | linux-bfef0cfab41cb4894bc5cf8b93e76327ac04b9b9.tar.gz | |
nfsd: ignore requests to disable unsupported versions
[ Upstream commit 8e823bafff2308753d430566256c83d8085952da ]
The kernel currently errors out if you attempt to enable or disable a
version that it doesn't recognize. Change it to ignore attempts to
disable an unrecognized version. If we don't support it, then there is
no harm in doing so.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/nfsd/nfsctl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 573de0d49e1729..c21f5815d72644 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -601,7 +601,9 @@ static ssize_t __write_versions(struct file *file, char *buf, size_t size) } break; default: - return -EINVAL; + /* Ignore requests to disable non-existent versions */ + if (cmd == NFSD_SET) + return -EINVAL; } vers += len + 1; } while ((len = qword_get(&mesg, vers, size)) > 0); |