LU-14543 target: prevent overflowing of tgd->tgd_tot_granted

[fs/lustre-release.git] / lustre / include / lu_target.h

diff --git a/lustre/include/lu_target.h b/lustre/include/lu_target.h
index 880bbb1..0711a2f 100644 (file)
--- a/lustre/include/lu_target.h
+++ b/lustre/include/lu_target.h
@@ -134,7 +134,9 @@ struct tg_grants_data {
        int                      tgd_tot_granted_clients;
        /* shall we grant space to clients not
         * supporting OBD_CONNECT_GRANT_PARAM? */
        int                      tgd_tot_granted_clients;
        /* shall we grant space to clients not
         * supporting OBD_CONNECT_GRANT_PARAM? */

-       int                      tgd_grant_compat_disable;
+       unsigned int             tgd_grant_compat_disable:1,
+       /* if 1 then LBUG on grant miscount, CERROR otherwise */
+                                tgd_lbug_on_grant_miscount:1;

        /* protect all statfs-related counters */
        spinlock_t               tgd_osfs_lock;
        time64_t                 tgd_osfs_age;
        /* protect all statfs-related counters */
        spinlock_t               tgd_osfs_lock;
        time64_t                 tgd_osfs_age;


@@ -550,6 +552,11 @@ ssize_t grant_compat_disable_show(struct kobject *kobj, struct attribute *attr,
 ssize_t grant_compat_disable_store(struct kobject *kobj,
                                   struct attribute *attr,
                                   const char *buffer, size_t count);
 ssize_t grant_compat_disable_store(struct kobject *kobj,
                                   struct attribute *attr,
                                   const char *buffer, size_t count);

+ssize_t lbug_on_grant_miscount_show(struct kobject *kobj,
+                                   struct attribute *attr, char *buf);
+ssize_t lbug_on_grant_miscount_store(struct kobject *kobj,
+                                    struct attribute *attr,
+                                    const char *buffer, size_t count);

 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
 ssize_t sync_lock_cancel_show(struct kobject *kobj,
                              struct attribute *attr, char *buf);
 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
 ssize_t sync_lock_cancel_show(struct kobject *kobj,
                              struct attribute *attr, char *buf);