Date: Wed, 6 Aug 2008 19:44:40 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_malloc.c src/sys/sys malloc.h src/sys/vm memguard.c memguard.h Message-ID: <200808061947.m76JllxO086209@repoman.freebsd.org>
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emaste 2008-08-06 19:44:40 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_6)
sys/kern kern_malloc.c
sys/sys malloc.h
sys/vm memguard.c memguard.h
Log:
SVN rev 181350 on 2008-08-06 19:44:40Z by emaste
MFC r153880:
Improve memguard a bit:
- Provide tunable vm.memguard.desc, so one can specify memory type
without changing the code and recompiling the kernel.
- Allow to use memguard for kernel modules by providing sysctl
vm.memguard.desc, which can be changed to short description of memory
type before module is loaded.
- Move as much memguard code as possible to memguard.c.
- Add sysctl node vm.memguard. and move memguard-specific sysctl there.
- Add malloc_desc2type() function for finding memory type based on its
short description (ks_shortdesc field).
- Memory type can be changed (via vm.memguard.desc sysctl) only if it
doesn't exist (will be loaded later) or when no memory is allocated
yet. If there is allocated memory for the given memory type, return
EBUSY.
- Implement two ways of memory types comparsion and make safer/slower the
default.
Revision Changes Path
1.142.2.9 +17 -13 src/sys/kern/kern_malloc.c
1.80.2.2 +2 -0 src/sys/sys/malloc.h
1.5.2.1 +90 -0 src/sys/vm/memguard.c
1.2.2.1 +3 -0 src/sys/vm/memguard.h
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