[CIFS] pSesInfo->sesSem is used as mutex. Rename it to session_mutex and

convert it to a real mutex.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index ed751bb..a1c817e 100644 (file)
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -205,7 +205,7 @@ struct cifsUidInfo {
 struct cifsSesInfo {
        struct list_head smb_ses_list;
        struct list_head tcon_list;
-       struct semaphore sesSem;
+       struct mutex session_mutex;
 #if 0
        struct cifsUidInfo *uidInfo;    /* pointer to user info */
 #endif

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index b79ff68..9d17df3 100644 (file)
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -170,19 +170,19 @@ cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command)
         * need to prevent multiple threads trying to simultaneously
         * reconnect the same SMB session
         */
-       down(&ses->sesSem);
+       mutex_lock(&ses->session_mutex);
        if (ses->need_reconnect)
                rc = cifs_setup_session(0, ses, nls_codepage);
 
        /* do we need to reconnect tcon? */
        if (rc || !tcon->need_reconnect) {
-               up(&ses->sesSem);
+               mutex_unlock(&ses->session_mutex);
                goto out;
        }
 
        mark_open_files_invalid(tcon);
        rc = CIFSTCon(0, ses, tcon->treeName, tcon, nls_codepage);
-       up(&ses->sesSem);
+       mutex_unlock(&ses->session_mutex);
        cFYI(1, ("reconnect tcon rc = %d", rc));
 
        if (rc)
@@ -700,13 +700,13 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
        if (!ses || !ses->server)
                return -EIO;
 
-       down(&ses->sesSem);
+       mutex_lock(&ses->session_mutex);
        if (ses->need_reconnect)
                goto session_already_dead; /* no need to send SMBlogoff if uid
                                              already closed due to reconnect */
        rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB);
        if (rc) {
-               up(&ses->sesSem);
+               mutex_unlock(&ses->session_mutex);
                return rc;
        }
 
@@ -721,7 +721,7 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
        pSMB->AndXCommand = 0xFF;
        rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0);
 session_already_dead:
-       up(&ses->sesSem);
+       mutex_unlock(&ses->session_mutex);
 
        /* if session dead then we do not need to do ulogoff,
                since server closed smb session, no sense reporting

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 2e9e09c..45eb6cb 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2388,13 +2388,13 @@ try_mount_again:
                 */
                cifs_put_tcp_session(srvTcp);
 
-               down(&pSesInfo->sesSem);
+               mutex_lock(&pSesInfo->session_mutex);
                if (pSesInfo->need_reconnect) {
                        cFYI(1, ("Session needs reconnect"));
                        rc = cifs_setup_session(xid, pSesInfo,
                                                cifs_sb->local_nls);
                }
-               up(&pSesInfo->sesSem);
+               mutex_unlock(&pSesInfo->session_mutex);
        } else if (!rc) {
                cFYI(1, ("Existing smb sess not found"));
                pSesInfo = sesInfoAlloc();
@@ -2437,12 +2437,12 @@ try_mount_again:
                }
                pSesInfo->linux_uid = volume_info->linux_uid;
                pSesInfo->overrideSecFlg = volume_info->secFlg;
-               down(&pSesInfo->sesSem);
+               mutex_lock(&pSesInfo->session_mutex);
 
                /* BB FIXME need to pass vol->secFlgs BB */
                rc = cifs_setup_session(xid, pSesInfo,
                                        cifs_sb->local_nls);
-               up(&pSesInfo->sesSem);
+               mutex_unlock(&pSesInfo->session_mutex);
        }
 
        /* search for existing tcon to this server share */

diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index d27d4ec..d147499 100644 (file)
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -79,7 +79,7 @@ sesInfoAlloc(void)
                ++ret_buf->ses_count;
                INIT_LIST_HEAD(&ret_buf->smb_ses_list);
                INIT_LIST_HEAD(&ret_buf->tcon_list);
-               init_MUTEX(&ret_buf->sesSem);
+               mutex_init(&ret_buf->session_mutex);
        }
        return ret_buf;
 }