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Date:      Tue, 21 Jan 2003 10:38:50 +0100
From:      phk@freebsd.org
To:        Alfred Perlstein <alfred@freebsd.org>
Cc:        cvs-committers@freebsd.org, cvs-all@freebsd.org
Subject:   Re: cvs commit: src/sys/alpha/alpha busdma_machdep.c src/sys/alpha/osf1 imgact_osf1.c osf1_misc.c src/sys/cam cam_periph.c cam_sim.c cam_xpt.c src/sys/cam/scsi scsi_cd.c scsi_ch.c scsi_da.c scsi_low.c scsi_sa.c scsi_target.c src/sys/coda cnode.h ... 
Message-ID:  <11798.1043141930@critter.freebsd.dk>
In-Reply-To: Your message of "Tue, 21 Jan 2003 00:56:16 PST." <200301210856.h0L8uGF3078830@repoman.freebsd.org> 

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In message <200301210856.h0L8uGF3078830@repoman.freebsd.org>, Alfred Perlstein 
writes:
>alfred      2003/01/21 00:56:16 PST
>
>  Log:
>  Remove M_TRYWAIT/M_WAITOK/M_WAIT.  Callers should use 0.
>  Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.

I'll admit that I saw your headsup, and didn't fire my reply after
you yet so it is technically a bit late to come with my input:

Considering that we are trying to make an SMP agile kernel, I would
argue the default should be to not wait.

If nothing else because it would also have given us a nice grep
target for places things could sleep.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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