netdev - [PATCH net-next] sctp: use GFP_KERNEL in sctp

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Message-ID: <1450222419.8474.58.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 15 Dec 2015 15:33:39 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Vlad Yasevich <vyasevich@...il.com>,
	Neil Horman <nhorman@...driver.com>
Subject: [PATCH net-next] sctp: use GFP_KERNEL in sctp_init()

From: Eric Dumazet <edumazet@...gle.com>

modules init functions being called from process context, we better
use GFP_KERNEL allocations to increase our chances to get these
high-order pages we want for SCTP hash tables.

This mostly matters if SCTP module is loaded once memory got fragmented.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 net/sctp/protocol.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 3d9ea9a48289..6c2c0accc6a0 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1419,7 +1419,7 @@ static __init int sctp_init(void)
 		if ((sctp_assoc_hashsize > (64 * 1024)) && order > 0)
 			continue;
 		sctp_assoc_hashtable = (struct sctp_hashbucket *)
-			__get_free_pages(GFP_ATOMIC|__GFP_NOWARN, order);
+			__get_free_pages(GFP_KERNEL | __GFP_NOWARN, order);
 	} while (!sctp_assoc_hashtable && --order > 0);
 	if (!sctp_assoc_hashtable) {
 		pr_err("Failed association hash alloc\n");
@@ -1452,7 +1452,7 @@ static __init int sctp_init(void)
 		if ((sctp_port_hashsize > (64 * 1024)) && order > 0)
 			continue;
 		sctp_port_hashtable = (struct sctp_bind_hashbucket *)
-			__get_free_pages(GFP_ATOMIC|__GFP_NOWARN, order);
+			__get_free_pages(GFP_KERNEL | __GFP_NOWARN, order);
 	} while (!sctp_port_hashtable && --order > 0);
 	if (!sctp_port_hashtable) {
 		pr_err("Failed bind hash alloc\n");


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