Date: Tue, 22 Jan 2008 16:10:04 GMT From: Tom Rhodes <trhodes@FreeBSD.org> To: freebsd-doc@FreeBSD.org Subject: Re: docs/114139: mbuf(9) has misleading comments on M_DONTWAIT and M_TRYWAIT Message-ID: <200801221610.m0MGA4Dw008378@freefall.freebsd.org>
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The following reply was made to PR docs/114139; it has been noted by GNATS. From: Tom Rhodes <trhodes@FreeBSD.org> To: bug-followup@FreeBSD.org Cc: Subject: Re: docs/114139: mbuf(9) has misleading comments on M_DONTWAIT and M_TRYWAIT Date: Tue, 22 Jan 2008 11:06:00 -0500 Hi, I'm not completely sure on the first point, I think the missing context not copied from mbuf(9) does point out why they are different. Compare mbuf.9 to sys/mbuf.h and double check. For the second point, I sent this patch to another developer for review: Index: mbuf.9 =================================================================== RCS file: /home/ncvs/src/share/man/man9/mbuf.9,v retrieving revision 1.65 diff -u -u -r1.65 mbuf.9 --- mbuf.9 26 Feb 2007 15:17:19 -0000 1.65 +++ mbuf.9 22 Jan 2008 11:52:59 -0000 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD: src/share/man/man9/mbuf.9,v 1.65 2007/02/26 15:17:19 bms Exp $ .\" -.Dd February 26, 2007 +.Dd January 22, 2008 .Dt MBUF 9 .Os .\" @@ -363,12 +363,8 @@ .Fa how is set to .Dv M_TRYWAIT , -a failed allocation will result in the caller being put -to sleep for a designated -kern.ipc.mbuf_wait -.Xr ( sysctl 8 -tunable) -number of ticks. +a failed allocation will result in the caller blocking until +resources are available and thus never return NULL. A number of other functions and macros related to .Vt mbufs have the same argument because they may Thanks, -- Tom Rhodes
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