Date: Thu, 16 Sep 1999 22:34:00 -0700 (PDT) From: Matt Dillon <dillon@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/sys vnioctl.h src/usr.sbin/vnconfig vnconfig.8 vnconfig.c src/sys/dev/vn vn.c Message-ID: <199909170534.WAA53277@freefall.freebsd.org>
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dillon 1999/09/16 22:34:00 PDT
Modified files:
sys/sys vnioctl.h
usr.sbin/vnconfig vnconfig.8 vnconfig.c
sys/dev/vn vn.c
Log:
Fix a bug in the block number calculation for VN disks with a sector
size != 512 that are configured without a label. The bug should only
have effected swap-backed VN mounts without a label.
Add several major features to VN. In the kernel we add a swap
pre-reservation capability, which can be used to guarentee seek
consistency for swap-backed VN nodes. This also incidently allows
a swap-backed VN filesystem to be recovered after a crash in some
cases (if the same swap blocks happen to be reserved).
We also add a number of new options to vnconfig which do the work
of pre-zeroing or creating/truncating/extending a file which greatly
simplifies using VN in a file-backed configuration.
Add FreeBSD CVS label to sys/sys/vnioctl.h, as well as a new ioctl
flag for the swap pre-reservation feature.
Reviewed by: Alan Cox <alc@cs.rice.edu>, David Greenman <dg@root.com>
Revision Changes Path
1.4 +3 -0 src/sys/sys/vnioctl.h
1.11 +24 -4 src/usr.sbin/vnconfig/vnconfig.8
1.13 +97 -9 src/usr.sbin/vnconfig/vnconfig.c
1.94 +49 -11 src/sys/dev/vn/vn.c
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