Date: Thu, 15 Sep 2005 19:05:37 +0000 (UTC) From: John Baldwin <jhb@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_sleepqueue.c src/sys/geom geom_io.c src/sys/sys proc.h Message-ID: <200509151905.j8FJ5beJ008055@repoman.freebsd.org>
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jhb 2005-09-15 19:05:37 UTC
FreeBSD src repository
Modified files:
sys/kern kern_intr.c subr_sleepqueue.c
sys/geom geom_io.c
sys/sys proc.h
Log:
- Add a new simple facility for marking the current thread as being in a
state where sleeping on a sleep queue is not allowed. The facility
doesn't support recursion but uses a simple private per-thread flag
(TDP_NOSLEEPING). The sleepq_add() function will panic if the flag is
set and INVARIANTS is enabled.
- Use this new facility to replace the g_xup and g_xdown mutexes that were
(ab)used to achieve similar behavior.
- Disallow sleeping in interrupt threads when invoking interrupt handlers.
MFC after: 1 week
Reviewed by: phk
Revision Changes Path
1.67 +7 -30 src/sys/geom/geom_io.c
1.125 +2 -0 src/sys/kern/kern_intr.c
1.19 +4 -0 src/sys/kern/subr_sleepqueue.c
1.434 +14 -1 src/sys/sys/proc.h
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