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

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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>
This commit is contained in:
Steve French 2010-02-25 05:36:46 +00:00
parent 122ca0076e
commit d7b619cf56
4 changed files with 12 additions and 12 deletions
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2
fs/cifs/cifsglob.h
View File

@ -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

12
fs/cifs/cifssmb.c
View File

@ -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

8
fs/cifs/connect.c
View File

@ -2388,13 +2388,13 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
*/
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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
}
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 */

2
fs/cifs/misc.c
View File

@ -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;
}