This is a note to let you know that I've just added the patch titled cifs: unbreak TCP session reuse to the 4.7-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: cifs-unbreak-tcp-session-reuse.patch and it can be found in the queue-4.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From b782fcc1cbeb7e336c0ed1f00004b2208f48ffe0 Mon Sep 17 00:00:00 2001 From: Rabin Vincent <rabinv@xxxxxxxx> Date: Tue, 19 Jul 2016 09:25:45 +0200 Subject: cifs: unbreak TCP session reuse From: Rabin Vincent <rabinv@xxxxxxxx> commit b782fcc1cbeb7e336c0ed1f00004b2208f48ffe0 upstream. adfeb3e0 ("cifs: Make echo interval tunable") added a comparison of vol->echo_interval to server->echo_interval as a criterium to match_server(), but: (1) A default value is set for server->echo_interval but not for vol->echo_interval, meaning these can never match if the echo_interval option is not specified. (2) vol->echo_interval is in seconds but server->echo_interval is in jiffies, meaning these can never match even if the echo_interval option is specified. This broke TCP session reuse since match_server() can never return 1. Fix it. Fixes: adfeb3e0 ("cifs: Make echo interval tunable") Signed-off-by: Rabin Vincent <rabinv@xxxxxxxx> Acked-by: Sachin Prabhu <sprabhu@xxxxxxxxxx> Signed-off-by: Steve French <smfrench@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/cifs/connect.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1228,6 +1228,8 @@ cifs_parse_mount_options(const char *mou vol->ops = &smb1_operations; vol->vals = &smb1_values; + vol->echo_interval = SMB_ECHO_INTERVAL_DEFAULT; + if (!mountdata) goto cifs_parse_mount_err; @@ -2049,7 +2051,7 @@ static int match_server(struct TCP_Serve if (!match_security(server, vol)) return 0; - if (server->echo_interval != vol->echo_interval) + if (server->echo_interval != vol->echo_interval * HZ) return 0; return 1; Patches currently in stable-queue which might be from rabinv@xxxxxxxx are queue-4.7/cifs-unbreak-tcp-session-reuse.patch queue-4.7/cifs-fix-crash-due-to-race-in-hmac-md5-handling.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html