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From: Aurelien Aptel <aaptel@suse.com>
To: linux-cifs@vger.kernel.org
Cc: smfrench@gmail.com, Aurelien Aptel <aaptel@suse.com>
Subject: [PATCH v4 4/6] cifs: sort interface list by speed
Date: Fri, 20 Sep 2019 07:01:17 +0200	[thread overview]
Message-ID: <20190920050119.27017-5-aaptel@suse.com> (raw)
In-Reply-To: <20190920050119.27017-1-aaptel@suse.com>

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
---
 fs/cifs/smb2ops.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 1ca35672350c..0e66dc1aa1c9 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -10,6 +10,7 @@
 #include <linux/falloc.h>
 #include <linux/scatterlist.h>
 #include <linux/uuid.h>
+#include <linux/sort.h>
 #include <crypto/aead.h>
 #include "cifsglob.h"
 #include "smb2pdu.h"
@@ -558,6 +559,13 @@ parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf,
 	return rc;
 }
 
+static int compare_iface(const void *ia, const void *ib)
+{
+	const struct cifs_server_iface *a = (struct cifs_server_iface *)ia;
+	const struct cifs_server_iface *b = (struct cifs_server_iface *)ib;
+
+	return a->speed == b->speed ? 0 : (a->speed > b->speed ? -1 : 1);
+}
 
 static int
 SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
@@ -587,6 +595,9 @@ SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
 	if (rc)
 		goto out;
 
+	/* sort interfaces from fastest to slowest */
+	sort(iface_list, iface_count, sizeof(*iface_list), compare_iface, NULL);
+
 	spin_lock(&ses->iface_lock);
 	kfree(ses->iface_list);
 	ses->iface_list = iface_list;
-- 
2.16.4


  parent reply	other threads:[~2019-09-20  5:01 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-20  5:01 [PATCH v4 0/6] multichannel Aurelien Aptel
2019-09-20  5:01 ` [PATCH v4 1/6] cifs: add multichannel mount options and data structs Aurelien Aptel
2019-09-20  5:01 ` [PATCH v4 2/6] cifs: add server param Aurelien Aptel
2019-09-20  5:01 ` [PATCH v4 3/6] cifs: switch servers depending on binding state Aurelien Aptel
2019-09-20  5:01 ` Aurelien Aptel [this message]
2019-09-20  5:01 ` [PATCH v4 5/6] cifs: try opening channels after mounting Aurelien Aptel
2019-09-20  7:30   ` Steve French
2019-09-20  5:01 ` [PATCH v4 6/6] cifs: mention if an interface has a channel connected to it Aurelien Aptel

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