add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/include/net/dst.h
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@@ -19,17 +19,6 @@
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 #include <net/neighbour.h>
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 #include <asm/processor.h>
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-#define DST_GC_MIN	(HZ/10)
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-#define DST_GC_INC	(HZ/2)
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-#define DST_GC_MAX	(120*HZ)
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-
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-/* Each dst_entry has reference count and sits in some parent list(s).
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- * When it is removed from parent list, it is "freed" (dst_free).
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- * After this it enters dead state (dst->obsolete > 0) and if its refcnt
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- * is zero, it can be destroyed immediately, otherwise it is added
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- * to gc list and garbage collector periodically checks the refcnt.
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- */
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-
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 struct sk_buff;
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 struct dst_entry {
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@@ -46,7 +35,6 @@
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 	int			(*output)(struct net *net, struct sock *sk, struct sk_buff *skb);
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 	unsigned short		flags;
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-#define DST_HOST		0x0001
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 #define DST_NOXFRM		0x0002
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 #define DST_NOPOLICY		0x0004
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 #define DST_NOCOUNT		0x0008
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@@ -194,7 +182,7 @@
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 }
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 /* Kernel-internal feature bits that are unallocated in user space. */
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-#define DST_FEATURE_ECN_CA	(1 << 31)
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+#define DST_FEATURE_ECN_CA	(1U << 31)
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 #define DST_FEATURE_MASK	(DST_FEATURE_ECN_CA)
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 #define DST_FEATURE_ECN_MASK	(DST_FEATURE_ECN_CA | RTAX_FEATURE_ECN)
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@@ -226,7 +214,7 @@
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 static inline int
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 dst_metric_locked(const struct dst_entry *dst, int metric)
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 {
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-	return dst_metric(dst, RTAX_LOCK) & (1<<metric);
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+	return dst_metric(dst, RTAX_LOCK) & (1 << metric);
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 }
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 static inline void dst_hold(struct dst_entry *dst)
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@@ -547,14 +535,15 @@
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 		dst->ops->update_pmtu(dst, NULL, skb, mtu, false);
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 }
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-static inline void skb_tunnel_check_pmtu(struct sk_buff *skb,
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-					 struct dst_entry *encap_dst,
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-					 int headroom)
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-{
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-	u32 encap_mtu = dst_mtu(encap_dst);
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-
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-	if (skb->len > encap_mtu - headroom)
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-		skb_dst_update_pmtu_no_confirm(skb, encap_mtu - headroom);
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-}
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+struct dst_entry *dst_blackhole_check(struct dst_entry *dst, u32 cookie);
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+void dst_blackhole_update_pmtu(struct dst_entry *dst, struct sock *sk,
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+			       struct sk_buff *skb, u32 mtu, bool confirm_neigh);
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+void dst_blackhole_redirect(struct dst_entry *dst, struct sock *sk,
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+			    struct sk_buff *skb);
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+u32 *dst_blackhole_cow_metrics(struct dst_entry *dst, unsigned long old);
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+struct neighbour *dst_blackhole_neigh_lookup(const struct dst_entry *dst,
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+					     struct sk_buff *skb,
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+					     const void *daddr);
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+unsigned int dst_blackhole_mtu(const struct dst_entry *dst);
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 #endif /* _NET_DST_H */