Date: Sun, 8 Feb 2009 19:55:03 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/vm vm_map.c Message-ID: <200902081955.n18JtHSh014998@repoman.freebsd.org>
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kib 2009-02-08 19:55:03 UTC
FreeBSD src repository
Modified files:
sys/vm vm_map.c
Log:
SVN rev 188323 on 2009-02-08 19:55:03Z by kib
Lock the new map in vmspace_fork(). The newly allocated map should not
be accessible outside vmspace_fork() yet, but locking it would satisfy
the protocol of the vm_map_entry_link() and other functions called
from vmspace_fork().
Use trylock that is supposedly cannot fail, to silence WITNESS warning
of the nested acquisition of the sx lock with the same name.
Suggested and reviewed by: tegge
Revision Changes Path
1.404 +5 -0 src/sys/vm/vm_map.c
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