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authorAlan Stern <stern@rowland.harvard.edu>2007-06-07 17:12:25 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-12 19:34:31 -0400
commited76cacbea08ebfdb678c8687f98237cb7c67bb6 (patch)
treebb3c3f759e36d1ae3c6c5b422ec74304e4ce2502 /drivers/usb/storage/usb.h
parent3fc154b6b8134b98bb94d60cad9a46ec1ffbe372 (diff)
USB: usb-storage: use kthread_stop() for the control thread
This patch (as923) makes usb-storage's control thread use kthread_should_stop()/kthread_stop(). The scanning thread can't be similarly converted until the core kthread implementation allows threads to call do_exit(). The advantage of this change is that we can now be certain the control thread has terminated before storage_disconnect() returns. This will simplify the locking requirements when autosuspend support is added. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/storage/usb.h')
-rw-r--r--drivers/usb/storage/usb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index 6dac1ffdde86..6445665b1577 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -144,6 +144,7 @@ struct us_data {
144 unsigned char *sensebuf; /* sense data buffer */ 144 unsigned char *sensebuf; /* sense data buffer */
145 dma_addr_t cr_dma; /* buffer DMA addresses */ 145 dma_addr_t cr_dma; /* buffer DMA addresses */
146 dma_addr_t iobuf_dma; 146 dma_addr_t iobuf_dma;
147 struct task_struct *ctl_thread; /* the control thread */
147 148
148 /* mutual exclusion and synchronization structures */ 149 /* mutual exclusion and synchronization structures */
149 struct semaphore sema; /* to sleep thread on */ 150 struct semaphore sema; /* to sleep thread on */