> On Jan 21, 2015, at 12:54 AM, Konstantin Belousov <kostik...@gmail.com> wrote: > > On Tue, Jan 20, 2015 at 07:59:08PM -0800, Nathan Whitehorn wrote: >> >> On 01/20/15 11:14, Konstantin Belousov wrote: >>> On Tue, Jan 20, 2015 at 04:21:59PM +0000, Nathan Whitehorn wrote: >>>> Author: nwhitehorn >>>> Date: Tue Jan 20 16:21:59 2015 >>>> New Revision: 277421 >>>> URL: https://svnweb.freebsd.org/changeset/base/277421 >>>> >>>> Log: >>>> There does not seem to be any reason to acquire GIANT here. Follow amd64 >>>> in removing it. >>>> >>>> MFC after: 1 month >>>> >>>> Modified: >>>> head/sys/powerpc/powerpc/mem.c >>>> >>>> Modified: head/sys/powerpc/powerpc/mem.c >>>> ============================================================================== >>>> --- head/sys/powerpc/powerpc/mem.c Tue Jan 20 15:45:09 2015 >>>> (r277420) >>>> +++ head/sys/powerpc/powerpc/mem.c Tue Jan 20 16:21:59 2015 >>>> (r277421) >>>> @@ -100,8 +100,6 @@ memrw(struct cdev *dev, struct uio *uio, >>>> cnt = 0; >>>> error = 0; >>>> >>>> - GIANT_REQUIRED; >>>> - >>> This is not an acquisition, to be pedantic. Really, it is cdevsw which >>> has D_NEEDGIANT flag which acquires Giant. After architectures get >>> rid of GIANT_REQUIRED, flag can be removed. >>> >> Just so I understand, you are not objecting to this commit, right? > Absolutely not, this is the right thing to do. > >> Just >> pointing out that (a) my commit message was wrong and that (b) once all >> architectures make this change (presumably more involved) we can get rid >> of the D_NEEDGIANT in /sys/dev/mem/memdev.c? > Exactly.
There doesn’t seem to be a reason for i386 either. Was just looking at the code today on the plane for unrelated reasons. Warner _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
