Date: Thu, 20 Nov 2003 07:35:48 -0800 (PST) From: Mark Murray <markm@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_intr.c subr_witness.c src/sys/dev/random randomdev.c Message-ID: <200311201535.hAKFZnKe071500@repoman.freebsd.org>
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markm 2003/11/20 07:35:48 PST
FreeBSD src repository
Modified files:
sys/kern kern_intr.c subr_witness.c
sys/dev/random randomdev.c
Log:
Fix a major faux pas of mine. I was causing 2 very bad things to
happen in interrupt context; 1) sleep locks, and 2) malloc/free
calls.
1) is fixed by using spin locks instead.
2) is fixed by preallocating a FIFO (implemented with a STAILQ)
and using elements from this FIFO instead. This turns out
to be rather fast.
OK'ed by: re (scottl)
Thanks to: peter, jhb, rwatson, jake
Apologies to: *
Revision Changes Path
1.46 +56 -12 src/sys/dev/random/randomdev.c
1.103 +0 -4 src/sys/kern/kern_intr.c
1.165 +2 -0 src/sys/kern/subr_witness.c
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