diff options
Diffstat (limited to 'net/ceph/ceph_common.c')
| -rw-r--r-- | net/ceph/ceph_common.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index ee71ea26777..e65e6e4be38 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -15,6 +15,8 @@ #include <linux/slab.h> #include <linux/statfs.h> #include <linux/string.h> +#include <linux/nsproxy.h> +#include <net/net_namespace.h> #include <linux/ceph/ceph_features.h> @@ -26,6 +28,22 @@ #include "crypto.h" +/* + * Module compatibility interface. For now it doesn't do anything, + * but its existence signals a certain level of functionality. + * + * The data buffer is used to pass information both to and from + * libceph. The return value indicates whether libceph determines + * it is compatible with the caller (from another kernel module), + * given the provided data. + * + * The data pointer can be null. + */ +bool libceph_compatible(void *data) +{ + return true; +} +EXPORT_SYMBOL(libceph_compatible); /* * find filename portion of a path (/foo/bar/baz -> baz) @@ -292,6 +310,9 @@ ceph_parse_options(char *options, const char *dev_name, int err = -ENOMEM; substring_t argstr[MAX_OPT_ARGS]; + if (current->nsproxy->net_ns != &init_net) + return ERR_PTR(-EINVAL); + opt = kzalloc(sizeof(*opt), GFP_KERNEL); if (!opt) return ERR_PTR(-ENOMEM); @@ -585,10 +606,8 @@ static int __init init_ceph_lib(void) if (ret < 0) goto out_crypto; - pr_info("loaded (mon/osd proto %d/%d, osdmap %d/%d %d/%d)\n", - CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL, - CEPH_OSDMAP_VERSION, CEPH_OSDMAP_VERSION_EXT, - CEPH_OSDMAP_INC_VERSION, CEPH_OSDMAP_INC_VERSION_EXT); + pr_info("loaded (mon/osd proto %d/%d)\n", + CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL); return 0; |