LU-6142 libcfs: discard cfs_strrstr()

[fs/lustre-release.git] / lustre / osp / lwp_dev.c

diff --git a/lustre/osp/lwp_dev.c b/lustre/osp/lwp_dev.c
index 188aca0..c26968a 100644 (file)
--- a/lustre/osp/lwp_dev.c
+++ b/lustre/osp/lwp_dev.c
@@ -82,9 +82,11 @@ static int lwp_setup(const struct lu_env *env, struct lwp_device *lwp,
        char                    *lwp_name = lwp->lpd_obd->obd_name;
        char                    *server_uuid = NULL;
        char                    *ptr;
+       int                      uuid_len = -1;
        struct obd_import       *imp;
        int                      len = strlen(lwp_name) + 1;
        int                      rc;
+       const char              *lwp_marker = "-" LUSTRE_LWP_NAME "-";
        ENTRY;
 
        lwp->lpd_notify_task = NULL;
@@ -97,16 +99,17 @@ static int lwp_setup(const struct lu_env *env, struct lwp_device *lwp,
        if (server_uuid == NULL)
                GOTO(out, rc = -ENOMEM);
 
-       snprintf(server_uuid, len, "-%s-", LUSTRE_LWP_NAME);
-       ptr = cfs_strrstr(lwp_name, server_uuid);
-       if (ptr == NULL) {
+       ptr = lwp_name;
+       while (ptr && (ptr = strstr(ptr+1, lwp_marker)) != NULL)
+               uuid_len = ptr - lwp_name;
+
+       if (uuid_len < 0) {
                CERROR("%s: failed to get server_uuid from lwp_name: rc = %d\n",
                       lwp_name, -EINVAL);
                GOTO(out, rc = -EINVAL);
        }
 
-       strncpy(server_uuid, lwp_name, ptr - lwp_name);
-       server_uuid[ptr - lwp_name] = '\0';
+       strncpy(server_uuid, lwp_name, uuid_len);
        strlcat(server_uuid, "_UUID", len);
        lustre_cfg_bufs_reset(bufs, lwp_name);
        lustre_cfg_bufs_set_string(bufs, 1, server_uuid);