Author: rwatson
Date: Sat Mar 6 21:24:11 2010
New Revision: 204806
URL: http://svn.freebsd.org/changeset/base/204806
Log:
Wrap use of rw_try_upgrade() on pcbinfo with macro INP_INFO_TRY_UPGRADE()
to match other pcbinfo locking macros.
MFC after: 1 week
Modified:
head/sys/netinet/in_pcb.h
head/sys/netinet/tcp_input.c
Modified: head/sys/netinet/in_pcb.h
==============================================================================
--- head/sys/netinet/in_pcb.h Sat Mar 6 21:22:28 2010 (r204805)
+++ head/sys/netinet/in_pcb.h Sat Mar 6 21:24:11 2010 (r204806)
@@ -376,6 +376,7 @@ void inp_4tuple_get(struct inpcb *inp,
#define INP_INFO_WLOCK(ipi) rw_wlock(&(ipi)->ipi_lock)
#define INP_INFO_TRY_RLOCK(ipi) rw_try_rlock(&(ipi)->ipi_lock)
#define INP_INFO_TRY_WLOCK(ipi) rw_try_wlock(&(ipi)->ipi_lock)
+#define INP_INFO_TRY_UPGRADE(ipi) rw_try_upgrade(&(ipi)->ipi_lock)
#define INP_INFO_RUNLOCK(ipi) rw_runlock(&(ipi)->ipi_lock)
#define INP_INFO_WUNLOCK(ipi) rw_wunlock(&(ipi)->ipi_lock)
#define INP_INFO_LOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock,
RA_LOCKED)
Modified: head/sys/netinet/tcp_input.c
==============================================================================
--- head/sys/netinet/tcp_input.c Sat Mar 6 21:22:28 2010
(r204805)
+++ head/sys/netinet/tcp_input.c Sat Mar 6 21:24:11 2010
(r204806)
@@ -632,7 +632,7 @@ relocked:
("%s: INP_TIMEWAIT ti_locked %d", __func__, ti_locked));
if (ti_locked == TI_RLOCKED) {
- if (rw_try_upgrade(&V_tcbinfo.ipi_lock) == 0) {
+ if (INP_INFO_TRY_UPGRADE(&V_tcbinfo) == 0) {
in_pcbref(inp);
INP_WUNLOCK(inp);
INP_INFO_RUNLOCK(&V_tcbinfo);
@@ -683,7 +683,7 @@ relocked:
("%s: upgrade check ti_locked %d", __func__, ti_locked));
if (ti_locked == TI_RLOCKED) {
- if (rw_try_upgrade(&V_tcbinfo.ipi_lock) == 0) {
+ if (INP_INFO_TRY_UPGRADE(&V_tcbinfo) == 0) {
in_pcbref(inp);
INP_WUNLOCK(inp);
INP_INFO_RUNLOCK(&V_tcbinfo);
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