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Bluetooth: Use kthread API in cmtp

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kernel_thread() is a low-level implementation detail and
EXPORT_SYMBOL(kernel_thread) is scheduled for removal.
Use the <linux/kthread.h> API instead.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Szymon Janc 2011-03-21 14:20:06 +01:00 committed by Gustavo F. Padovan
parent f4d7cd4a4c
commit fada4ac339
3 changed files with 13 additions and 18 deletions
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6
net/bluetooth/cmtp/capi.c
View File

@ -35,6 +35,7 @@
#include <linux/ioctl.h>
#include <linux/file.h>
#include <linux/wait.h>
#include <linux/kthread.h>
#include <net/sock.h>
#include <linux/isdn/capilli.h>
@ -143,7 +144,7 @@ static void cmtp_send_capimsg(struct cmtp_session *session, struct sk_buff *skb)
skb_queue_tail(&session->transmit, skb);
cmtp_schedule(session);
wake_up_interruptible(sk_sleep(session->sock->sk));
}
static void cmtp_send_interopmsg(struct cmtp_session *session,
@ -386,8 +387,7 @@ static void cmtp_reset_ctr(struct capi_ctr *ctrl)
capi_ctr_down(ctrl);
atomic_inc(&session->terminate);
cmtp_schedule(session);
kthread_stop(session->task);
}
static void cmtp_register_appl(struct capi_ctr *ctrl, __u16 appl, capi_register_params *rp)

9
net/bluetooth/cmtp/cmtp.h
View File

@ -81,7 +81,7 @@ struct cmtp_session {
char name[BTNAMSIZ];
atomic_t terminate;
struct task_struct *task;
wait_queue_head_t wait;
@ -121,13 +121,6 @@ void cmtp_detach_device(struct cmtp_session *session);
void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb);
static inline void cmtp_schedule(struct cmtp_session *session)
{
struct sock *sk = session->sock->sk;
wake_up_interruptible(sk_sleep(sk));
}
/* CMTP init defines */
int cmtp_init_sockets(void);
void cmtp_cleanup_sockets(void);

16
net/bluetooth/cmtp/core.c
View File

@ -35,6 +35,7 @@
#include <linux/ioctl.h>
#include <linux/file.h>
#include <linux/init.h>
#include <linux/kthread.h>
#include <net/sock.h>
#include <linux/isdn/capilli.h>
@ -287,12 +288,11 @@ static int cmtp_session(void *arg)
BT_DBG("session %p", session);
daemonize("kcmtpd_ctr_%d", session->num);
set_user_nice(current, -15);
init_waitqueue_entry(&wait, current);
add_wait_queue(sk_sleep(sk), &wait);
while (!atomic_read(&session->terminate)) {
while (!kthread_should_stop()) {
set_current_state(TASK_INTERRUPTIBLE);
if (sk->sk_state != BT_CONNECTED)
@ -370,9 +370,12 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
__cmtp_link_session(session);
err = kernel_thread(cmtp_session, session, CLONE_KERNEL);
if (err < 0)
session->task = kthread_run(cmtp_session, session, "kcmtpd_ctr_%d",
session->num);
if (IS_ERR(session->task)) {
err = PTR_ERR(session->task);
goto unlink;
}
if (!(session->flags & (1 << CMTP_LOOPBACK))) {
err = cmtp_attach_device(session);
@ -409,9 +412,8 @@ int cmtp_del_connection(struct cmtp_conndel_req *req)
/* Flush the transmit queue */
skb_queue_purge(&session->transmit);
/* Kill session thread */
atomic_inc(&session->terminate);
cmtp_schedule(session);
/* Stop session thread */
kthread_stop(session->task);
} else
err = -ENOENT;