Messages in this thread | | | Date | Wed, 28 Nov 2001 23:45:05 +0000 | From | Russell King <> | Subject | Re: [PATCH] remove BKL from drivers' release functions |
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On Wed, Nov 28, 2001 at 03:32:32PM -0800, David C. Hansen wrote: > Nothing, because the BKL is not held for all opens anymore. In most of > the cases that we addressed, the BKL was in release _only_, not in open > at all. There were quite a few drivers where we added a spinlock, or > used atomic operations to keep open from racing with release.
All char and block devs are opened with the BKL held - see chrdev_open in fs/devices.c and do_open in fs/block_dev.c
-- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html
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