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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-22 16:09:31 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-22 16:09:31 -1000
commitb03fcfaef3538390cfb5e8d268fcdc5c828af1c7 (patch)
treebcb801c3f464710f4101ddc57f819ea0c3a8a636 /fs
parente2577d229374efc49f6479f42a54c3bd44a6008d (diff)
parent717e6f2893eb35ce6728c3cacdc297b78d371b31 (diff)
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Merge tag 'ceph-for-4.14-rc2' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov: "Two small but important fixes: RADOS semantic change in upcoming v12.2.1 release and a rare NULL dereference in create_session_open_msg()" * tag 'ceph-for-4.14-rc2' of git://github.com/ceph/ceph-client: ceph: avoid panic in create_session_open_msg() if utsname() returns NULL libceph: don't allow bidirectional swap of pg-upmap-items
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/mds_client.c7
-rw-r--r--fs/ceph/mds_client.h3
2 files changed, 7 insertions, 3 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 9dd6b836ac9e..84edfc60d87a 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -7,7 +7,6 @@
#include <linux/sched.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
-#include <linux/utsname.h>
#include <linux/ratelimit.h>
#include "super.h"
@@ -884,8 +883,8 @@ static struct ceph_msg *create_session_open_msg(struct ceph_mds_client *mdsc, u6
void *p;
const char* metadata[][2] = {
- {"hostname", utsname()->nodename},
- {"kernel_version", utsname()->release},
+ {"hostname", mdsc->nodename},
+ {"kernel_version", init_utsname()->release},
{"entity_id", opt->name ? : ""},
{"root", fsopt->server_path ? : "/"},
{NULL, NULL}
@@ -3539,6 +3538,8 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc)
init_rwsem(&mdsc->pool_perm_rwsem);
mdsc->pool_perm_tree = RB_ROOT;
+ strncpy(mdsc->nodename, utsname()->nodename,
+ sizeof(mdsc->nodename) - 1);
return 0;
}
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index db57ae98ed34..636d6b2ec49c 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -8,6 +8,7 @@
#include <linux/rbtree.h>
#include <linux/spinlock.h>
#include <linux/refcount.h>
+#include <linux/utsname.h>
#include <linux/ceph/types.h>
#include <linux/ceph/messenger.h>
@@ -368,6 +369,8 @@ struct ceph_mds_client {
struct rw_semaphore pool_perm_rwsem;
struct rb_root pool_perm_tree;
+
+ char nodename[__NEW_UTS_LEN + 1];
};
extern const char *ceph_mds_op_name(int op);