i dunno why it has still not reached the list...I sent it
6 hours ago.
-------- Original Message --------
Subject: [RFC] USB subsystem and the BKL
Date: Wed, 28 Jun 2006 10:49:43 +0200
Reply-To: Franck <[EMAIL PROTECTED]>
To: USB development list <linux-usb-devel@lists.sourceforge.net>
Hi,
I noticed that the BKL is used a couple of time in the USB subsystem.
Here is the list of the file that use it:
drivers/usb/host/uhci-debug.c
drivers/usb/misc/usblcd.c
drivers/usb/misc/sisusbvga/sisusb.c
drivers/usb/usb-skeleton.c
drivers/usb/core/devio.c
drivers/usb/core/devices.c
I'm not sure to understand why it is used, specially in devices.c and
devio.c files.
In devices.c, it's used by usb_device_poll() and usb_device_lseek()
functions.
usb_device_poll():
It seems to use it only to protect usb_device_status
structure. Can't we use a simple mutex here ?
usb_device_lseek():
can we use the inode's mutex instead ?
In devio.c, it's used by usbdev_open() and usbdev_lseek()
functions. In both function can't we also use the inode's mutex
instead ?
Thanks
Franck
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