linux-kernel - Re: kmemleak for MIPS

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Message-ID: <AANLkTikXfVNkyFE2MpW9ZtfX2G=QKvT7kvEuDE-YE5xO@mail.gmail.com>
Date:	Wed, 30 Mar 2011 13:17:24 +0100
From:	Maxin John <maxin.john@...il.com>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	Daniel Baluta <dbaluta@...acom.com>,
	naveen yadav <yad.naveen@...il.com>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: kmemleak for MIPS

A quick observation from dmesg after placing printks in
"net/ipv4/udp.c" for MIPS-malta

CONFIG_BASE_SMALL : 0
table->mask : 127
UDP_HTABLE_SIZE_MIN :  256

dmesg:
....
...
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
CONFIG_BASE_SMALL : 0
UDP hash table entries: 128 (order: 0, 4096 bytes)
table->mask, UDP_HTABLE_SIZE_MIN : 127 256
CONFIG_BASE_SMALL : 0
UDP-Lite hash table entries: 128 (order: 0, 4096 bytes)
table->mask, UDP_HTABLE_SIZE_MIN : 127 256
NET: Registered protocol family 1
....
....

printk(s) are placed in udp.c as listed below:

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 588f47a..ca7f6c6 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2162,7 +2162,7 @@ __setup("uhash_entries=", set_uhash_entries);
 void __init udp_table_init(struct udp_table *table, const char *name)
 {
        unsigned int i;
-
+       printk("CONFIG_BASE_SMALL : %d \n", CONFIG_BASE_SMALL);
        if (!CONFIG_BASE_SMALL)
                table->hash = alloc_large_system_hash(name,
                        2 * sizeof(struct udp_hslot),
@@ -2175,6 +2175,8 @@ void __init udp_table_init(struct udp_table
*table, const char *name)
        /*
         * Make sure hash table has the minimum size
         */
+       printk("table->mask, UDP_HTABLE_SIZE_MIN : %d %d
\n",table->mask,UDP_HTABLE_SIZE_MIN);
+
        if (CONFIG_BASE_SMALL || table->mask < UDP_HTABLE_SIZE_MIN - 1) {
                table->hash = kmalloc(UDP_HTABLE_SIZE_MIN *
                                      2 * sizeof(struct udp_hslot), GFP_KERNEL);
~


Best Regards,
Maxin
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