Author: csjp
Date: Sat Jan 14 22:51:34 2012
New Revision: 230119
URL: http://svn.freebsd.org/changeset/base/230119

Log:
  Revert to the old behavior of allocating table/table entries using
  M_NOWAIT.  Currently, the code allows for sleeping in the ioctl path
  to guarantee allocation.  However code also handles ENOMEM gracefully, so
  propagate this error back to user-space, rather than sleeping while
  holding the global pf mutex.
  
  Reviewed by:  glebius
  Discussed with:       bz

Modified:
  head/sys/contrib/pf/net/pf_table.c

Modified: head/sys/contrib/pf/net/pf_table.c
==============================================================================
--- head/sys/contrib/pf/net/pf_table.c  Sat Jan 14 22:46:18 2012        
(r230118)
+++ head/sys/contrib/pf/net/pf_table.c  Sat Jan 14 22:51:34 2012        
(r230119)
@@ -927,16 +927,12 @@ pfr_create_kentry(struct pfr_addr *ad, i
 {
        struct pfr_kentry       *ke;
 
-       if (intr)
 #ifdef __FreeBSD__
-               ke = pool_get(&V_pfr_kentry_pl, PR_NOWAIT | PR_ZERO);
+       ke =  pool_get(&V_pfr_kentry_pl, PR_NOWAIT | PR_ZERO);
 #else
+       if (intr)
                ke = pool_get(&pfr_kentry_pl, PR_NOWAIT | PR_ZERO);
-#endif
        else
-#ifdef __FreeBSD__
-               ke = pool_get(&V_pfr_kentry_pl, PR_WAITOK|PR_ZERO);
-#else
                ke = pool_get(&pfr_kentry_pl, PR_WAITOK|PR_ZERO|PR_LIMITFAIL);
 #endif
        if (ke == NULL)
@@ -2081,16 +2077,12 @@ pfr_create_ktable(struct pfr_table *tbl,
        struct pfr_ktable       *kt;
        struct pf_ruleset       *rs;
 
-       if (intr)
 #ifdef __FreeBSD__
-               kt = pool_get(&V_pfr_ktable_pl, PR_NOWAIT|PR_ZERO);
+       kt = pool_get(&V_pfr_ktable_pl, PR_NOWAIT|PR_ZERO);
 #else
+       if (intr)
                kt = pool_get(&pfr_ktable_pl, PR_NOWAIT|PR_ZERO|PR_LIMITFAIL);
-#endif
        else
-#ifdef __FreeBSD__
-               kt = pool_get(&V_pfr_ktable_pl, PR_WAITOK|PR_ZERO);
-#else
                kt = pool_get(&pfr_ktable_pl, PR_WAITOK|PR_ZERO|PR_LIMITFAIL);
 #endif
        if (kt == NULL)
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