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authorAlan Stern <stern@rowland.harvard.edu>2006-09-19 10:14:07 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-28 15:36:44 -0700
commitbd859281c09b4318153dc7222b5e9052aad83b61 (patch)
treec56c116b7720aae3dc5192f115444d16a5c21e58 /drivers/usb/core/usb.h
parent6a9fb060393e04a79973f95925f4f6587442e9c7 (diff)
USB: create new workqueue thread for USB autosuspend
This patch (as787) creates a new workqueue thread to handle delayed USB autosuspend requests. Previously the code used keventd. However it turns out that the hub driver's suspend routine calls flush_scheduled_work(), making it a poor candidate for running in keventd (the call immediately deadlocks). The solution is to use a new thread instead of keventd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/usb.h')
-rw-r--r--drivers/usb/core/usb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 0c09ecced6e..fb6eb41c374 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -62,6 +62,7 @@ extern int usb_autoresume_device(struct usb_device *udev, int inc_busy_cnt);
#endif
+extern struct workqueue_struct *ksuspend_usb_wq;
extern struct bus_type usb_bus_type;
extern struct usb_device_driver usb_generic_driver;