diff options
| author | Jeff Layton <jlayton@kernel.org> | 2019-11-07 15:39:32 +0100 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-11-07 18:03:23 +0100 |
| commit | ff29fde84d1fc82f233c7da0daa3574a3942bec7 (patch) | |
| tree | 854e143d26493d2277e2a91c5dbdf6e7b54abf5d /fs/ceph/super.c | |
| parent | ceph: don't allow copy_file_range when stripe_count != 1 (diff) | |
| download | linux-ff29fde84d1fc82f233c7da0daa3574a3942bec7.tar.xz linux-ff29fde84d1fc82f233c7da0daa3574a3942bec7.zip | |
ceph: return -EINVAL if given fsc mount option on kernel w/o support
If someone requests fscache on the mount, and the kernel doesn't
support it, it should fail the mount.
[ Drop ceph prefix -- it's provided by pr_err. ]
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/ceph/super.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c index edfd643a8205..b47f43fc2d68 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -268,6 +268,7 @@ static int parse_fsopt_token(char *c, void *private) } break; case Opt_fscache_uniq: +#ifdef CONFIG_CEPH_FSCACHE kfree(fsopt->fscache_uniq); fsopt->fscache_uniq = kstrndup(argstr[0].from, argstr[0].to-argstr[0].from, @@ -276,7 +277,10 @@ static int parse_fsopt_token(char *c, void *private) return -ENOMEM; fsopt->flags |= CEPH_MOUNT_OPT_FSCACHE; break; - /* misc */ +#else + pr_err("fscache support is disabled\n"); + return -EINVAL; +#endif case Opt_wsize: if (intval < (int)PAGE_SIZE || intval > CEPH_MAX_WRITE_SIZE) return -EINVAL; @@ -353,10 +357,15 @@ static int parse_fsopt_token(char *c, void *private) fsopt->flags &= ~CEPH_MOUNT_OPT_INO32; break; case Opt_fscache: +#ifdef CONFIG_CEPH_FSCACHE fsopt->flags |= CEPH_MOUNT_OPT_FSCACHE; kfree(fsopt->fscache_uniq); fsopt->fscache_uniq = NULL; break; +#else + pr_err("fscache support is disabled\n"); + return -EINVAL; +#endif case Opt_nofscache: fsopt->flags &= ~CEPH_MOUNT_OPT_FSCACHE; kfree(fsopt->fscache_uniq); |