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authorAurelien Aptel <aaptel@suse.com>2018-06-14 15:43:18 +0200
committerSteve French <stfrench@microsoft.com>2018-06-15 02:38:08 -0500
commitb6f0dd5d75f9689d57c7ea49e52c80cabb876cb4 (patch)
tree95c487b99249eca1427e75614c7ee31f5acc1dd7
parentbead042cccca5a7c5626b851b66a30698aa0ac36 (diff)
downloadlinux-b6f0dd5d75f9689d57c7ea49e52c80cabb876cb4.tar.gz
linux-b6f0dd5d75f9689d57c7ea49e52c80cabb876cb4.tar.xz
CIFS: add iface info to struct cifs_ses
Signed-off-by: Aurelien Aptel <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
-rw-r--r--fs/cifs/cifsglob.h21
-rw-r--r--fs/cifs/misc.c2
2 files changed, 23 insertions, 0 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index ff280447dae5..9dd5f1a3d64b 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -841,6 +841,13 @@ static inline void cifs_set_net_ns(struct TCP_Server_Info *srv, struct net *net)
#endif
+struct cifs_server_iface {
+ size_t speed;
+ unsigned int rdma_capable : 1;
+ unsigned int rss_capable : 1;
+ struct sockaddr_storage sockaddr;
+};
+
/*
* Session structure. One of these for each uid session with a particular host
*/
@@ -878,6 +885,20 @@ struct cifs_ses {
#ifdef CONFIG_CIFS_SMB311
__u8 preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE];
#endif /* 3.1.1 */
+
+ /*
+ * Network interfaces available on the server this session is
+ * connected to.
+ *
+ * Other channels can be opened by connecting and binding this
+ * session to interfaces from this list.
+ *
+ * iface_lock should be taken when accessing any of these fields
+ */
+ spinlock_t iface_lock;
+ struct cifs_server_iface *iface_list;
+ size_t iface_count;
+ unsigned long iface_last_update; /* jiffies */
};
static inline bool
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index bb40f3c050f6..53e8362cbc4a 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -82,6 +82,7 @@ sesInfoAlloc(void)
INIT_LIST_HEAD(&ret_buf->smb_ses_list);
INIT_LIST_HEAD(&ret_buf->tcon_list);
mutex_init(&ret_buf->session_mutex);
+ spin_lock_init(&ret_buf->iface_lock);
}
return ret_buf;
}
@@ -102,6 +103,7 @@ sesInfoFree(struct cifs_ses *buf_to_free)
kfree(buf_to_free->user_name);
kfree(buf_to_free->domainName);
kzfree(buf_to_free->auth_key.response);
+ kfree(buf_to_free->iface_list);
kzfree(buf_to_free);
}