Date: Fri, 23 Feb 2001 10:49:16 -0800 (PST) From: Robert Watson <rwatson@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/lib/libkvm kvm_getswapinfo.c Message-ID: <200102231849.f1NInGp44900@freefall.freebsd.org>
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rwatson 2001/02/23 10:49:16 PST
Modified files:
lib/libkvm kvm_getswapinfo.c
Log:
Adapt libkvm_getswapinfo() to make use of recently committed vm and swap
sysctls exporting swap information. When running on a live kernel,
the sysctl's will now be used instead of kvm_read, allowing consumers of
this interface to run without privilege (setgid kmem). Retain the
ability to run on coredumps, or on a kernel using kmem if explicitly
pointed at one.
A side effect of this change is that kvm_getswapinfo() is faster now in
the general case. If the SWIF_DUMP_TREE flag is given (pstat -ss does
this), the radix tree walker, which still uses kvm_read in any case, is
invoked, and therefore does require privilege.
Submitted by: Thomas Moestl <tmoestl@gmx.net>
Reviewed by: freebsd-audit
Revision Changes Path
1.15 +255 -61 src/lib/libkvm/kvm_getswapinfo.c
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