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Separate the locking macros that are used in the packet flow path

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from others. This helps easy switch to use pfil(4) lock.
This commit is contained in:
Andrey V. Elsukov 2013-03-19 06:04:17 +00:00
parent 5474386bd3
commit 93bb4f9ed5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=248491
2 changed files with 9 additions and 7 deletions
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6
sys/netpfil/ipfw/ip_fw2.c
View File

@ -1203,9 +1203,9 @@ do { \
args->f_id.dst_port = dst_port = ntohs(dst_port);
}
IPFW_RLOCK(chain);
IPFW_PF_RLOCK(chain);
if (! V_ipfw_vnet_ready) { /* shutting down, leave NOW. */
IPFW_RUNLOCK(chain);
IPFW_PF_RUNLOCK(chain);
return (IP_FW_PASS); /* accept */
}
if (args->rule.slot) {
@ -2459,7 +2459,7 @@ do { \
retval = IP_FW_DENY;
printf("ipfw: ouch!, skip past end of rules, denying packet\n");
}
IPFW_RUNLOCK(chain);
IPFW_PF_RUNLOCK(chain);
#ifdef __FreeBSD__
if (ucred_cache != NULL)
crfree(ucred_cache);

10
sys/netpfil/ipfw/ip_fw_private.h
View File

@ -278,10 +278,12 @@ struct sockopt; /* used by tcp_var.h */
#define IPFW_RLOCK_ASSERT(_chain) rw_assert(&(_chain)->rwmtx, RA_RLOCKED)
#define IPFW_WLOCK_ASSERT(_chain) rw_assert(&(_chain)->rwmtx, RA_WLOCKED)
#define IPFW_RLOCK(p) rw_rlock(&(p)->rwmtx)
#define IPFW_RUNLOCK(p) rw_runlock(&(p)->rwmtx)
#define IPFW_WLOCK(p) rw_wlock(&(p)->rwmtx)
#define IPFW_WUNLOCK(p) rw_wunlock(&(p)->rwmtx)
#define IPFW_RLOCK(p) rw_rlock(&(p)->rwmtx)
#define IPFW_RUNLOCK(p) rw_runlock(&(p)->rwmtx)
#define IPFW_WLOCK(p) rw_wlock(&(p)->rwmtx)
#define IPFW_WUNLOCK(p) rw_wunlock(&(p)->rwmtx)
#define IPFW_PF_RLOCK(p) IPFW_RLOCK(p)
#define IPFW_PF_RUNLOCK(p) IPFW_RUNLOCK(p)
#define IPFW_UH_RLOCK_ASSERT(_chain) rw_assert(&(_chain)->uh_lock, RA_RLOCKED)
#define IPFW_UH_WLOCK_ASSERT(_chain) rw_assert(&(_chain)->uh_lock, RA_WLOCKED)