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author | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
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committer | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
commit | 1d2a1959fe534279cf37aba20b08c24c20840e52 (patch) | |
tree | 67c0b9aa7fe22a44bf0b4af88947799203eb8f67 /drivers/staging/usbip/usbip_common.c | |
parent | 5a79ce76e9bb8f4b2cd8106ee36d15ee05013bcf (diff) | |
parent | 054cfaacf88865bff1dd58d305443d5d6c068a08 (diff) | |
download | linux-1d2a1959fe534279cf37aba20b08c24c20840e52.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Diffstat (limited to 'drivers/staging/usbip/usbip_common.c')
-rw-r--r-- | drivers/staging/usbip/usbip_common.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c index 210ef16..337abc4 100644 --- a/drivers/staging/usbip/usbip_common.c +++ b/drivers/staging/usbip/usbip_common.c @@ -18,7 +18,6 @@ */ #include <linux/kernel.h> -#include <linux/smp_lock.h> #include <linux/file.h> #include <linux/tcp.h> #include <linux/in.h> @@ -349,110 +348,6 @@ void usbip_dump_header(struct usbip_header *pdu) } EXPORT_SYMBOL_GPL(usbip_dump_header); - -/*-------------------------------------------------------------------------*/ -/* thread routines */ - -int usbip_thread(void *param) -{ - struct usbip_task *ut = param; - - if (!ut) - return -EINVAL; - - lock_kernel(); - daemonize(ut->name); - allow_signal(SIGKILL); - ut->thread = current; - unlock_kernel(); - - /* srv.rb must wait for rx_thread starting */ - complete(&ut->thread_done); - - /* start of while loop */ - ut->loop_ops(ut); - - /* end of loop */ - ut->thread = NULL; - - complete_and_exit(&ut->thread_done, 0); -} - -static void stop_rx_thread(struct usbip_device *ud) -{ - if (ud->tcp_rx.thread != NULL) { - send_sig(SIGKILL, ud->tcp_rx.thread, 1); - wait_for_completion(&ud->tcp_rx.thread_done); - usbip_udbg("rx_thread for ud %p has finished\n", ud); - } -} - -static void stop_tx_thread(struct usbip_device *ud) -{ - if (ud->tcp_tx.thread != NULL) { - send_sig(SIGKILL, ud->tcp_tx.thread, 1); - wait_for_completion(&ud->tcp_tx.thread_done); - usbip_udbg("tx_thread for ud %p has finished\n", ud); - } -} - -int usbip_start_threads(struct usbip_device *ud) -{ - /* - * threads are invoked per one device (per one connection). - */ - struct task_struct *th; - int err = 0; - - th = kthread_run(usbip_thread, (void *)&ud->tcp_rx, "usbip"); - if (IS_ERR(th)) { - printk(KERN_WARNING - "Unable to start control thread\n"); - err = PTR_ERR(th); - goto ust_exit; - } - - th = kthread_run(usbip_thread, (void *)&ud->tcp_tx, "usbip"); - if (IS_ERR(th)) { - printk(KERN_WARNING - "Unable to start control thread\n"); - err = PTR_ERR(th); - goto tx_thread_err; - } - - /* confirm threads are starting */ - wait_for_completion(&ud->tcp_rx.thread_done); - wait_for_completion(&ud->tcp_tx.thread_done); - - return 0; - -tx_thread_err: - stop_rx_thread(ud); - -ust_exit: - return err; -} -EXPORT_SYMBOL_GPL(usbip_start_threads); - -void usbip_stop_threads(struct usbip_device *ud) -{ - /* kill threads related to this sdev, if v.c. exists */ - stop_rx_thread(ud); - stop_tx_thread(ud); -} -EXPORT_SYMBOL_GPL(usbip_stop_threads); - -void usbip_task_init(struct usbip_task *ut, char *name, - void (*loop_ops)(struct usbip_task *)) -{ - ut->thread = NULL; - init_completion(&ut->thread_done); - ut->name = name; - ut->loop_ops = loop_ops; -} -EXPORT_SYMBOL_GPL(usbip_task_init); - - /*-------------------------------------------------------------------------*/ /* socket routines */ |