Date: Wed, 12 Feb 2003 11:20:31 -0800 From: Jeffrey Hsu <hsu@FreeBSD.org> To: Guido van Rooij <guido@gvr.org> Cc: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/netinet tcp_syncache.c Message-ID: <0HA700J3HMX8MM@mta6.snfc21.pbi.net> In-Reply-To: Message from Guido van Rooij <guido@gvr.org> "of Wed, 12 Feb 2003 14:00:57 %2B0100." <20030212130057.GA27427@gvr.gvr.org>
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> On Tue, Feb 11, 2003 at 04:42:12PM -0800, Jeffrey Hsu wrote: > > hsu 2003/02/11 16:42:12 PST > > > > Modified files: > > sys/netinet tcp_syncache.c > > Log: > > Properly document that syncache timer processing requires an > > exclusive TCP protocol lock. > > This seems like a strange way of telling us you need a write-lock instead > of a read lock... > > -Guido A write lock is an exclusive lock. (A read lock is a shared lock.) Since INP_INFO_RLOCK() and INP_INFO_WLOCK() are both currently defined to be the same mutex lock, this commit doesn't change anything other than documenting for future reference when shared access can occur and when exclusive access is required. Jeffrey To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-src" in the body of the message
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