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Add __noinline attribute to several functions to ease dtrace instrumentation

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This commit is contained in:
Alexander V. Chernikov 2015-10-04 08:21:15 +00:00
parent 973532fc7d
commit c0b8aeae2d
1 changed files with 22 additions and 10 deletions
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32
sys/netinet6/nd6.c
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@ -512,12 +512,13 @@ nd6_llinfo_settimer_locked(struct llentry *ln, long tick)
}
/*
* Gets source address of the first packet in hold queue
* and stores it in @src.
* Returns pointer to @src (if hold queue is not empty) or NULL.
*
*/
static struct in6_addr *
* Gets source address of the first packet in hold queue
* and stores it in @src.
* Returns pointer to @src (if hold queue is not empty) or NULL.
*
* Set noinline to be dtrace-friendly
*/
static __noinline struct in6_addr *
nd6_llinfo_get_holdsrc(struct llentry *ln, struct in6_addr *src)
{
struct ip6_hdr hdr;
@ -541,8 +542,10 @@ nd6_llinfo_get_holdsrc(struct llentry *ln, struct in6_addr *src)
/*
* Switch @lle state to new state optionally arming timers.
*
* Set noinline to be dtrace-friendly
*/
void
__noinline void
nd6_llinfo_setstate(struct llentry *lle, int newstate)
{
struct ifnet *ifp;
@ -586,7 +589,12 @@ nd6_llinfo_settimer(struct llentry *ln, long tick)
LLE_WUNLOCK(ln);
}
static void
/*
* Timer-dependent part of nd state machine.
*
* Set noinline to be dtrace-friendly
*/
static __noinline void
nd6_llinfo_timer(void *arg)
{
struct llentry *ln;
@ -1179,8 +1187,10 @@ nd6_is_addr_neighbor(const struct sockaddr_in6 *addr, struct ifnet *ifp)
* Since the function would cause significant changes in the kernel, DO NOT
* make it global, unless you have a strong reason for the change, and are sure
* that the change is safe.
*
* Set noinline to be dtrace-friendly
*/
static void
static __noinline void
nd6_free(struct llentry *ln, int gc)
{
struct nd_defrouter *dr;
@ -2036,8 +2046,10 @@ nd6_resolve(struct ifnet *ifp, int is_gw, struct mbuf *m,
* Heavy version.
* Function assume that destination LLE does not exist,
* is invalid or stale, so LLE_EXCLUSIVE lock needs to be acquired.
*
* Set noinline to be dtrace-friendly
*/
static int
static __noinline int
nd6_resolve_slow(struct ifnet *ifp, struct mbuf *m,
const struct sockaddr_in6 *dst, u_char *desten, uint32_t *pflags)
{