diff options
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 51610468c63..baf59789006 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -65,7 +65,20 @@ struct dst_entry { unsigned short pending_confirm; short error; + + /* A non-zero value of dst->obsolete forces by-hand validation + * of the route entry. Positive values are set by the generic + * dst layer to indicate that the entry has been forcefully + * destroyed. + * + * Negative values are used by the implementation layer code to + * force invocation of the dst_ops->check() method. + */ short obsolete; +#define DST_OBSOLETE_NONE 0 +#define DST_OBSOLETE_DEAD 2 +#define DST_OBSOLETE_FORCE_CHK -1 +#define DST_OBSOLETE_KILL -2 unsigned short header_len; /* more space at head required */ unsigned short trailer_len; /* space to reserve at tail */ #ifdef CONFIG_IP_ROUTE_CLASSID @@ -359,7 +372,7 @@ extern struct dst_entry *dst_destroy(struct dst_entry *dst); static inline void dst_free(struct dst_entry *dst) { - if (dst->obsolete > 1) + if (dst->obsolete > 0) return; if (!atomic_read(&dst->__refcnt)) { dst = dst_destroy(dst); |