Date: Sun, 9 Nov 2003 17:37:41 -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_glue.c vm_map.c vm_mmap.c Message-ID: <200311100137.hAA1bfsN058166@repoman.freebsd.org>
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alc 2003/11/09 17:37:41 PST
FreeBSD src repository
Modified files:
sys/vm vm_glue.c vm_map.c vm_mmap.c
Log:
- The Open Group Base Specifications Issue 6 specifies that an munmap(2)
must return EINVAL if size is zero. Submitted by: tegge
- In order to avoid a race condition in multithreaded applications, the
check and removal operations by munmap(2) must be in the same critical
section. To accomodate this, vm_map_check_protection() is modified to
require its caller to obtain at least a read lock on the map.
Revision Changes Path
1.187 +4 -0 src/sys/vm/vm_glue.c
1.321 +6 -14 src/sys/vm/vm_map.c
1.171 +8 -6 src/sys/vm/vm_mmap.c
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