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[CIFS] cifs_find_tcp_session cleanup

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This patch cleans up cifs_find_tcp_session so it become
less indented. Also the error of skipping IPv6 matched
addresses fixed.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Cyrill Gorcunov 2008-05-09 18:17:21 +00:00 committed by Steve French
parent 5bb7ff795f
commit 1b20d67218
1 changed files with 25 additions and 24 deletions
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49
fs/cifs/connect.c
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@ -1318,42 +1318,43 @@ cifs_parse_mount_options(char *options, const char *devname,
static struct cifsSesInfo *
cifs_find_tcp_session(struct in_addr *target_ip_addr,
struct in6_addr *target_ip6_addr,
char *userName, struct TCP_Server_Info **psrvTcp)
struct in6_addr *target_ip6_addr,
char *userName, struct TCP_Server_Info **psrvTcp)
{
struct list_head *tmp;
struct cifsSesInfo *ses;
*psrvTcp = NULL;
read_lock(&GlobalSMBSeslock);
*psrvTcp = NULL;
read_lock(&GlobalSMBSeslock);
list_for_each(tmp, &GlobalSMBSessionList) {
ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
if (ses->server) {
if ((target_ip_addr &&
(ses->server->addr.sockAddr.sin_addr.s_addr
== target_ip_addr->s_addr)) || (target_ip6_addr
&& memcmp(&ses->server->addr.sockAddr6.sin6_addr,
target_ip6_addr, sizeof(*target_ip6_addr)))) {
/* BB lock server and tcp session and increment
use count here?? */
if (!ses->server)
continue;
/* found a match on the TCP session */
*psrvTcp = ses->server;
if (target_ip_addr &&
ses->server->addr.sockAddr.sin_addr.s_addr != target_ip_addr->s_addr)
continue;
else if (target_ip6_addr &&
memcmp(&ses->server->addr.sockAddr6.sin6_addr,
target_ip6_addr, sizeof(*target_ip6_addr)))
continue;
/* BB lock server and tcp session and increment use count here?? */
/* BB check if reconnection needed */
if (strncmp
(ses->userName, userName,
MAX_USERNAME_SIZE) == 0){
read_unlock(&GlobalSMBSeslock);
/* Found exact match on both TCP and
SMB sessions */
return ses;
}
}
/* found a match on the TCP session */
*psrvTcp = ses->server;
/* BB check if reconnection needed */
if (strncmp(ses->userName, userName, MAX_USERNAME_SIZE) == 0) {
read_unlock(&GlobalSMBSeslock);
/* Found exact match on both TCP and
SMB sessions */
return ses;
}
/* else tcp and smb sessions need reconnection */
}
read_unlock(&GlobalSMBSeslock);
return NULL;
}