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5cb63a57f8
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Etienne Dechamps 5cb63a57f8 Implement the truncate_range() inode operation. 
This operation allows "hole punching" in ZFS files. On Solaris this
is done via the vop_space() system call, which maps to the zfs_space()
function. So we just need to write zpl_truncate_range() as a wrapper
around zfs_space().

Note that this only works for regular files, not ZVOLs.

This is currently an insecure implementation without permission
checking, although this isn't that big of a deal since truncate_range()
isn't even callable from userspace.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #334
2012-02-09 15:20:32 -08:00
cmd Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
config Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
dracut Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
etc Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
include Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
lib Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
man Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
module Implement the truncate_range() inode operation. 2012-02-09 15:20:32 -08:00
patches Add build system 2010-08-31 13:41:27 -07:00
scripts Fix zconfig.sh non-optimal alignment 2012-02-09 13:23:28 -08:00
udev Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
.gitignore Ignore unsigned module build products 2010-03-09 14:14:09 -08:00
AUTHORS Add "ashift" property to zpool create 2011-06-17 16:35:49 -07:00
autogen.sh Make autogen.sh executable 2011-07-26 10:15:35 -07:00
ChangeLog Add build system 2010-08-31 13:41:27 -07:00
configure Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
configure.ac Add make rule for building Arch Linux packages 2011-12-14 19:14:23 -08:00
COPYING Relocate COPYING+COPYRIGHT, remove README cruft 2008-12-01 15:34:53 -08:00
COPYRIGHT Update COPYRIGHT to reference zpios CDDL exceptions. 2010-05-18 14:25:28 -07:00
DISCLAIMER Update COPYRIGHT and DISCLAIMER. 2010-05-18 10:32:23 -07:00
Makefile.am Add the release component to headers 2012-01-18 12:19:47 -08:00
Makefile.in Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
META Prep zfs-0.6.0-rc6 tag 2011-10-06 14:10:45 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
PKGBUILD-zfs-modules.in Add make rule for building Arch Linux packages 2011-12-14 19:14:23 -08:00
PKGBUILD-zfs.in Add make rule for building Arch Linux packages 2011-12-14 19:14:23 -08:00
README.markdown Fix markdown rendering 2010-09-15 09:09:37 -07:00
zfs_config.h.in Improve ZVOL queue behavior. 2012-02-07 16:23:06 -08:00
zfs-modules.spec.in Fix rpm dependencies 2012-01-18 12:19:52 -08:00
zfs-script-config.sh.in Unconditionally load core kernel modules 2010-11-11 11:38:25 -08:00
ZFS.RELEASE Update to onnv_147 2010-08-26 14:24:34 -07:00
zfs.spec.in Fix rpm dependencies 2012-01-18 12:19:52 -08:00

README.markdown

Native ZFS for Linux! ZFS is an advanced file system and volume manager which was originally developed for Solaris. It has been successfully ported to FreeBSD and now there is a functional Linux ZFS kernel port too. The port currently includes a fully functional and stable SPA, DMU, and ZVOL with a ZFS Posix Layer (ZPL) on the way!

$ ./configure
$ make pkg

Full documentation for building, configuring, and using ZFS can be found at: http://zfsonlinux.org