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From: Patrick McHardy <kaber@trash.net>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, Patrick McHardy <kaber@trash.net>,
	netfilter-devel@vger.kernel.org
Subject: netfilter 02/62: xt_recent: save 8 bytes per htable
Date: Tue, 16 Feb 2010 15:55:21 +0100 (MET)	[thread overview]
Message-ID: <20100216145519.2796.39711.sendpatchset@x2.localnet> (raw)
In-Reply-To: <20100216145517.2796.40634.sendpatchset@x2.localnet>

commit 89bc7a0f64de7bed2e0bc68a23d75699a610cd37
Author: Jan Engelhardt <jengelh@medozas.de>
Date:   Mon Jan 4 16:26:03 2010 +0100

    netfilter: xt_recent: save 8 bytes per htable
    
    Moving rnd_inited into the hole after the uint8 lets go of the uint32
    rnd_inited was using, plus the padding that would follow the int group.
    
    Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
    Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index dd16e40..5bdc1fb 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -81,13 +81,13 @@ struct xt_hashlimit_htable {
 	struct hlist_node node;		/* global list of all htables */
 	atomic_t use;
 	u_int8_t family;
+	bool rnd_initialized;
 
 	struct hashlimit_cfg1 cfg;	/* config */
 
 	/* used internally */
 	spinlock_t lock;		/* lock for list_head */
 	u_int32_t rnd;			/* random seed for hash */
-	int rnd_initialized;
 	unsigned int count;		/* number entries in table */
 	struct timer_list timer;	/* timer for gc */
 
@@ -150,7 +150,7 @@ dsthash_alloc_init(struct xt_hashlimit_htable *ht,
 	 * the first hashtable entry */
 	if (!ht->rnd_initialized) {
 		get_random_bytes(&ht->rnd, sizeof(ht->rnd));
-		ht->rnd_initialized = 1;
+		ht->rnd_initialized = true;
 	}
 
 	if (ht->cfg.max && ht->count >= ht->cfg.max) {
@@ -235,7 +235,7 @@ static int htable_create_v0(struct xt_hashlimit_info *minfo, u_int8_t family)
 	atomic_set(&hinfo->use, 1);
 	hinfo->count = 0;
 	hinfo->family = family;
-	hinfo->rnd_initialized = 0;
+	hinfo->rnd_initialized = false;
 	spin_lock_init(&hinfo->lock);
 	hinfo->pde = proc_create_data(minfo->name, 0,
 		(family == NFPROTO_IPV4) ?
@@ -296,7 +296,7 @@ static int htable_create(struct xt_hashlimit_mtinfo1 *minfo, u_int8_t family)
 	atomic_set(&hinfo->use, 1);
 	hinfo->count = 0;
 	hinfo->family = family;
-	hinfo->rnd_initialized = 0;
+	hinfo->rnd_initialized = false;
 	spin_lock_init(&hinfo->lock);
 
 	hinfo->pde = proc_create_data(minfo->name, 0,

  parent reply	other threads:[~2010-02-16 14:55 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-16 14:55 netfilter 00/62: netfilter update Patrick McHardy
2010-02-16 14:55 ` netfilter 01/62: SNMP NAT: correct the size argument to kzalloc Patrick McHardy
2010-02-16 14:55 ` Patrick McHardy [this message]
2010-02-16 14:55 ` netfilter 03/62: xtables: do not grab random bytes at __init Patrick McHardy
2010-02-16 14:55 ` netfilter 04/62: xtables: obtain random bytes earlier, in checkentry Patrick McHardy
2010-02-16 14:55 ` IPVS 05/62: Allow boot time change of hash size Patrick McHardy
2010-02-16 14:55 ` netfilter 06/62: nf_nat_ftp: remove (*mangle[]) array and functions, use %pI4 Patrick McHardy
2010-02-16 14:55 ` ipvs 07/62: use standardized format in sprintf Patrick McHardy
2010-02-16 14:55 ` netfilter 08/62: xt_osf: change %pi4 to %pI4 Patrick McHardy
2010-02-16 14:55 ` netfilter 09/62: nfnetlink: netns support Patrick McHardy
2010-02-16 14:55 ` netfilter 10/62: ctnetlink: " Patrick McHardy
2010-02-16 14:55 ` netfilter 11/62: xt_connlimit: " Patrick McHardy
2010-02-16 14:55 ` netfilter 12/62: netns: Patrick McHardy
2010-02-16 14:55 ` netfilter 13/62: xt_hashlimit: simplify seqfile code Patrick McHardy
2010-02-16 14:55 ` netfilter 14/62: xtables: add struct xt_mtchk_param::net Patrick McHardy
2010-02-16 14:55 ` netfilter 15/62: xtables: add struct xt_mtdtor_param::net Patrick McHardy
2010-02-16 14:55 ` netfilter 16/62: xt_recent: netns support Patrick McHardy
2010-02-16 14:55 ` netfilter 17/62: xt_hashlimit: " Patrick McHardy
2010-02-16 14:55 ` netfilter 18/62: nfnetlink_queue: simplify warning message Patrick McHardy
2010-02-16 14:55 ` netfilter 19/62: nf_conntrack_ipv6: delete the redundant macro definitions Patrick McHardy
2010-02-16 14:55 ` IPv6 20/62: reassembly: replace magic number with " Patrick McHardy
2010-02-16 15:43   ` Joe Perches
2010-02-16 15:47     ` Patrick McHardy
2010-02-17  4:40       ` [PATCH] ipv6.h: reassembly: replace calculated magic number with multiplication Joe Perches
2010-02-17  7:38         ` David Miller
2010-02-16 14:55 ` netfiltr 21/62: ipt_CLUSTERIP: simplify seq_file codeA Patrick McHardy
2010-02-16 14:55 ` netfilter 22/62: xtables: CONFIG_COMPAT redux Patrick McHardy
2010-02-16 14:55 ` netfilter 23/62: xt_TCPMSS: SYN packets are allowed to contain data Patrick McHardy
2010-02-16 14:55 ` netfilter 24/62: xt_hashlimit: fix race condition and simplify locking Patrick McHardy
2010-02-17 16:43   ` [PATCH net-next-2.6] xt_hashlimit: fix locking Eric Dumazet
2010-02-17 20:08     ` Patrick McHardy
2010-02-17 21:39       ` David Miller
2010-02-16 14:55 ` netfilter 25/62: ctnetlink: only assign helpers for matching protocols Patrick McHardy
2010-02-16 14:55 ` netfilter 26/62: add struct net * to target parameters Patrick McHardy
2010-02-16 14:55 ` netfilter 27/62: nf_conntrack: split up IPCT_STATUS event Patrick McHardy
2010-02-16 14:55 ` netfilter 28/62: ctnetlink: support selective event delivery Patrick McHardy
2010-02-16 14:55 ` netfilter 29/62: nf_conntrack: support conntrack templates Patrick McHardy
2010-02-16 14:56 ` netfilter 30/62: xtables: add CT target Patrick McHardy
2010-02-16 14:56 ` netfilter 31/62: fix build failure with CONNTRACK=y NAT=n Patrick McHardy
2010-02-16 14:56 ` netfilter 32/62: xtables: consistent struct compat_xt_counters definition Patrick McHardy
2010-02-16 14:56 ` netfilter 33/62: xtables: symmetric COMPAT_XT_ALIGN definition Patrick McHardy
2010-02-16 14:56 ` netfilter 34/62: ctnetlink: add missing netlink attribute policies Patrick McHardy
2010-02-16 14:56 ` netfilter 35/62: xtables: compact table hook functions (1/2) Patrick McHardy
2010-02-16 14:56 ` netfilter 36/62: xtables: compact table hook functions (2/2) Patrick McHardy
2010-02-16 14:56 ` netfilter 37/62: xtables: use xt_table for hook instantiation Patrick McHardy
2010-02-16 14:56 ` netfilter 38/62: xtables: generate initial table on-demand Patrick McHardy
2010-02-16 14:56 ` netfilter 39/62: ctnetlink: dump expectation helper name Patrick McHardy
2010-02-16 14:56 ` netfilter 40/62: nf_conntrack: show helper and class in /proc/net/nf_conntrack_expect Patrick McHardy
2010-02-16 14:56 ` netfilter 41/62: nf_conntrack_sip: fix ct_sip_parse_request() REGISTER request parsing Patrick McHardy
2010-02-16 14:56 ` netfilter 42/62: nf_conntrack_sip: pass data offset to NAT functions Patrick McHardy
2010-02-16 14:56 ` netfilter 43/62: nf_conntrack_sip: add TCP support Patrick McHardy
2010-02-16 14:56 ` netfilter 44/62: nf_nat: support mangling a single TCP packet multiple times Patrick McHardy
2010-02-16 14:56 ` netfilter 45/62: nf_nat_sip: add TCP support Patrick McHardy
2010-02-16 14:56 ` netfilter 46/62: nf_conntrack_sip: add T.38 FAX support Patrick McHardy
2010-02-16 14:56 ` netfilter 47/62: xtables: fix mangle tables Patrick McHardy
2010-02-16 14:56 ` netfilter 48/62: nf_conntrack: elegantly simplify nf_ct_exp_net() Patrick McHardy
2010-02-16 14:56 ` netfilter 49/62: don't use INIT_RCU_HEAD() Patrick McHardy
2010-02-16 14:56 ` netfilter 50/62: xt_recent: inform user when hitcount is too large Patrick McHardy
2010-02-16 14:56 ` netfilter 51/62: iptables: remove unused function arguments Patrick McHardy
2010-02-16 14:56 ` netfilter 52/62: reduce NF_HOOK by one argument Patrick McHardy
2010-02-16 14:56 ` netfilter 53/62: get rid of the grossness in netfilter.h Patrick McHardy
2010-02-16 14:56 ` netfilter 54/62: xtables: print details on size mismatch Patrick McHardy
2010-02-16 14:56 ` netfilter 55/62: xtables: constify args in compat copying functions Patrick McHardy
2010-02-16 14:56 ` netfilter 56/62: xtables: add const qualifiers Patrick McHardy
2010-02-16 14:56 ` netfilter 57/62: nf_conntrack: pass template to l4proto ->error() handler Patrick McHardy
2010-02-16 14:56 ` netfilter 58/62: nf_conntrack: add support for "conntrack zones" Patrick McHardy
2010-02-16 14:56 ` netfilter 59/62: ctnetlink: add zone support Patrick McHardy
2010-02-16 14:56 ` netfilter 60/62: ebtables: abort if next_offset is too small Patrick McHardy
2010-02-16 14:56 ` netfilter 61/62: ebtables: avoid explicit XT_ALIGN() in match/targets Patrick McHardy
2010-02-16 14:56 ` netfilter 62/62: CONFIG_COMPAT: allow delta to exceed 32767 Patrick McHardy
2010-02-16 19:21 ` netfilter 00/62: netfilter update David Miller

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