| Subject | Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 | From | Thomas Gleixner <> | Date | Thu, 21 Oct 2004 11:55:34 +0200 |
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On Thu, 2004-10-21 at 11:12, Rui Nuno Capela wrote:
Can you try that one ?
diff -urN 2.6.9-rc4-mm1-RT-U8/drivers/usb/storage/scsiglue.c 2.6.9-rc4-mm1-RT-U8.1/drivers/usb/storage/scsiglue.c --- 2.6.9-rc4-mm1-RT-U8/drivers/usb/storage/scsiglue.c 2004-10-12 09:41:44.000000000 +0200 +++ 2.6.9-rc4-mm1-RT-U8.1/drivers/usb/storage/scsiglue.c 2004-10-21 11:45:14.000000000 +0200 @@ -187,7 +187,7 @@ us->srb = srb; /* wake up the process task */ - up(&(us->sema)); + complete(&(us->done)); return 0; } diff -urN 2.6.9-rc4-mm1-RT-U8/drivers/usb/storage/usb.c 2.6.9-rc4-mm1-RT-U8.1/drivers/usb/storage/usb.c --- 2.6.9-rc4-mm1-RT-U8/drivers/usb/storage/usb.c 2004-10-12 09:41:44.000000000 +0200 +++ 2.6.9-rc4-mm1-RT-U8.1/drivers/usb/storage/usb.c 2004-10-21 11:45:34.000000000 +0200 @@ -299,7 +299,7 @@ for(;;) { US_DEBUGP("*** thread sleeping.\n"); - if(down_interruptible(&us->sema)) + if(wait_for_completion_interruptible(&us->done)) break; US_DEBUGP("*** thread awakened.\n"); @@ -941,7 +941,7 @@ } memset(us, 0, sizeof(struct us_data)); init_MUTEX(&(us->dev_semaphore)); - init_MUTEX_LOCKED(&(us->sema)); + init_completion(&(us->done)); init_completion(&(us->notify)); init_waitqueue_head(&us->dev_reset_wait); init_waitqueue_head(&us->scsi_scan_wait); diff -urN 2.6.9-rc4-mm1-RT-U8/drivers/usb/storage/usb.h 2.6.9-rc4-mm1-RT-U8.1/drivers/usb/storage/usb.h --- 2.6.9-rc4-mm1-RT-U8/drivers/usb/storage/usb.h 2004-10-12 09:41:44.000000000 +0200 +++ 2.6.9-rc4-mm1-RT-U8.1/drivers/usb/storage/usb.h 2004-10-21 11:45:13.000000000 +0200 @@ -159,8 +159,8 @@ dma_addr_t iobuf_dma; /* mutual exclusion and synchronization structures */ - struct semaphore sema; /* to sleep thread on */ - struct completion notify; /* thread begin/end */ + struct completion done; /* to sleep thread on */ + struct completion notify; /* thread begin/end */ wait_queue_head_t dev_reset_wait; /* wait during reset */ wait_queue_head_t scsi_scan_wait; /* wait before scanning */ struct completion scsi_scan_done; /* scan thread end */
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