Date: Thu, 29 Apr 2004 16:56:02 -0400 From: John Baldwin <jhb@FreeBSD.org> To: Brian Fundakowski Feldman <green@FreeBSD.org> Cc: Julian Elischer <julian@elischer.org> Subject: Re: code cleanup Message-ID: <200404291656.02104.jhb@FreeBSD.org> In-Reply-To: <200404291855.i3TItUTr048530@green.homeunix.org> References: <200404291855.i3TItUTr048530@green.homeunix.org>
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On Thursday 29 April 2004 02:55 pm, Brian Fundakowski Feldman wrote: > John Baldwin <jhb@FreeBSD.org> wrote: > > On Thursday 29 April 2004 12:06 am, Alex Lyashkov wrote: > > > > Note that the allproc_lock protects the allproc list. W/o the > > > > FOREACH_PROC macro, I can grep for 'allproc' in the source tree to > > > > find all users to verify locking, etc. With the extra macro, I now > > > > have to do multiple greps. > > > > > > two greps is multiple ? first of FOREACH_PROC, second allproc or > > > combine at one grep with two -e parameters. > > > > Multiple means more than one, yes. When I'm searching the tree when > > locking a structure or fields of a structure I don't usually come up with > > complex grep statements, and actually, I wouldn't find the FOREACH_FOO > > macro until I did the first grep anyway. When you add lots of macros > > that do this you get a compounding problem. > > For what it's worth, I don't think it is good to hide things as much as > FOREACH_PROC_IN_SYSTEM() -- this specific instance -- does, but grep is not > a good tool for a tree as large as FreeBSD's. Try using cscope instead. I've used glimpse in the past but it is buggy. Actually, grep -r on ssc/sys doesn't take that long, esp. if you do it multiple times as most of the tree is still in cache for subsequent grep's (at least on my laptop). I also tend to have lots (around 7 or so) trees that have work going on in them at any one time. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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