Date: Thu, 21 May 2009 17:17:39 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: attilio@freebsd.org Cc: scottl@samsco.org, src-committers@freebsd.org, jhb@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org, rwatson@freebsd.org, kostikbel@gmail.com Subject: Re: svn commit: r192535 - head/sys/kern Message-ID: <20090521.171739.1884781224.imp@bsdimp.com> In-Reply-To: <3bbf2fe10905211511g53defb6cmac45fc2469cc64f@mail.gmail.com> References: <3bbf2fe10905211005m350dc4d1yed6dc1b79f1603d9@mail.gmail.com> <20090521194243.GW1927@deviant.kiev.zoral.com.ua> <3bbf2fe10905211511g53defb6cmac45fc2469cc64f@mail.gmail.com>
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In message: <3bbf2fe10905211511g53defb6cmac45fc2469cc64f@mail.gmail.com>
Attilio Rao <attilio@freebsd.org> writes:
: At this point I wonder what's the purpose of maintaining the sleeping
: version for such functions?
As John explained, destroy_dev() needs to sleep to flush all the
threads out of the driver callbacks.
Warner
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