Date: Sun, 9 Nov 2003 14:09:04 -0800 (PST) From: Alan Cox <alc@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_mmap.c Message-ID: <200311092209.hA9M94tN038382@repoman.freebsd.org>
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alc 2003/11/09 14:09:04 PST
FreeBSD src repository
Modified files:
sys/vm vm_map.c vm_mmap.c
Log:
- Remove Giant from msync(2). Giant is still acquired by the lower layers
if we drop into the pmap or vnode layers.
- Migrate the handling of zero-length msync(2)s into vm_map_sync() so that
multithread applications can't change the map between implementing the
zero-length hack in msync(2) and reacquiring the map lock in
vm_map_sync().
Reviewed by: tegge
Revision Changes Path
1.320 +10 -0 src/sys/vm/vm_map.c
1.170 +0 -27 src/sys/vm/vm_mmap.c
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