Date: Sun, 13 Jan 2002 05:28:07 -0800 From: Alfred Perlstein <bright@mu.org> To: John Baldwin <jhb@FreeBSD.org> Cc: smp@freebsd.org, dillon@freebsd.org, tanimura@freebsd.org Subject: Re: fd locking. Message-ID: <20020113052807.R7984@elvis.mu.org> In-Reply-To: <20020113041019.P7984@elvis.mu.org>; from bright@mu.org on Sun, Jan 13, 2002 at 04:10:20AM -0800 References: <XFMail.020112174456.jhb@FreeBSD.org> <XFMail.020112185945.jhb@FreeBSD.org> <20020112191645.J7984@elvis.mu.org> <20020113041019.P7984@elvis.mu.org>
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* Alfred Perlstein <bright@mu.org> [020113 04:10] wrote:
> * Alfred Perlstein <bright@mu.org> [020112 19:17] wrote:
> > * John Baldwin <jhb@FreeBSD.org> [020112 19:00] wrote:
>
> > > Bruce is going to not like you for adding nested includes of sys/lock.h and
> > > sys/mutex.h. Instead, add nested includes of sys/_lock.h and sys/_mutex.h, and
> > > then add sys/lock.h and sys/mutex.h to the files that need them.
> >
> > Can this be delayed?
>
> I'll start on this.
Ugh, what a pain!
Basically I wind up with an annoying problem. I want fhold and fhold_locked
to be inlines. However they use mutexes, _however_, they aren't used for
the most part, __however__ a lot of people include these files...
so basically this is hard to do:
cc -c -O -pipe -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -fformat-extensions -ansi -g -nostdinc -I- -I. -I../../.. -I../../../dev -I../../../contrib/dev/acpica -I../../../contrib/ipfilter -I../../../../include -D_KERNEL -ffreestanding -include opt_global.h -fno-common -elf -mpreferred-stack-boundary=2 ../../../dev/sound/isa/ad1816.c
In file included from ../../../dev/sound/pcm/sound.h:49,
from ../../../dev/sound/isa/ad1816.c:29:
../../../sys/file.h: In function `fhold_locked':
../../../sys/file.h:152: warning: implicit declaration of function `mtx_assert'
../../../sys/file.h:152: `MA_OWNED' undeclared (first use in this function)
../../../sys/file.h:152: (Each undeclared identifier is reported only once
../../../sys/file.h:152: for each function it appears in.)
../../../sys/file.h: In function `fhold':
../../../sys/file.h:163: warning: implicit declaration of function `mtx_lock'
../../../sys/file.h:164: warning: nested extern declaration of `mtx_assert'
../../../sys/file.h:165: warning: implicit declaration of function `mtx_unlock'
ugh.
--
-Alfred Perlstein [alfred@freebsd.org]
'Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.'
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