Date: Mon, 20 Aug 2007 12:05:45 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/vm vm_map.c vm_map.h vm_mmap.c Message-ID: <200708201205.l7KC5jJr049700@repoman.freebsd.org>
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kib 2007-08-20 12:05:45 UTC
FreeBSD src repository
Modified files:
sys/vm vm_map.c vm_map.h vm_mmap.c
Log:
Do not drop vm_map lock between doing vm_map_remove() and vm_map_insert().
For this, introduce vm_map_fixed() that does that for MAP_FIXED case.
Dropping the lock allowed for parallel thread to occupy the freed space.
Reported by: Tijl Coosemans <tijl ulyssis org>
Reviewed by: alc
Approved by: re (kensmith)
MFC after: 2 weeks
Revision Changes Path
1.387 +35 -16 src/sys/vm/vm_map.c
1.120 +1 -0 src/sys/vm/vm_map.h
1.213 +4 -2 src/sys/vm/vm_mmap.c
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