Date: Wed, 30 Jun 1999 11:45:44 -0400 (EDT) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: Peter Wemm <peter@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern init_main.c kern_fork.c kern_linker.c vfs_aio.c src/sys/sys proc.h Message-ID: <199906301545.LAA24873@khavrinen.lcs.mit.edu> In-Reply-To: <199906301533.IAA29188@freefall.freebsd.org> References: <199906301533.IAA29188@freefall.freebsd.org>
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<<On Wed, 30 Jun 1999 08:33:43 -0700 (PDT), Peter Wemm <peter@FreeBSD.org> said: > syscalls set p->p_retval[] themselves. Simplify the SYSINIT_KT() code > and other kernel thread creators to not need to use pfind() to find the > child based on the pid. While here, partly tidy up some of the fork1() On an almost-unrelated tangent... Because proc structures are now stored in type-stable memory (via the zone allocator), other places in the kernel which now reference processes by pid and pfind should be able to keep a reference to the proc instead. (There does need to be a version number which gets incremented when proc structs are recycled, but this should still be cheaper than pfind().) This would benefit network applications written around a poll or select loop, since the simple case of selwakeup() uses pfind() to locate the specific process to wake up. -GAWollman -- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same wollman@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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