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Brian Behlendorf fc173c8589 Disable .zfs directory on 32-bit systems 
The .zfs control directory implementation currently relies on
the fact that there is a direct 1:1 mapping from an object id
to its inode number.  This works well as long as the system
uses a 64-bit value to store the inode number.

Unfortunately, the Linux kernel defines the inode number as
an 'unsigned long' type.  This means that for 32-bit systems
will only have 32-bit inode numbers but we still have 64-bit
object ids.

This problem is particularly acute for the .zfs directories
which leverage those upper 32-bits.  This is done to avoid
conflicting with object ids which are allocated monotonically
starting from 0.  This is likely to also be a problem for
datasets on 32-bit systems with more than ~2 billion files.

The right long term fix must remove the simple 1:1 mapping.
Until that's done the only safe thing to do is to disable the
.zfs directory on 32-bit systems.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2012-07-20 12:20:57 -07:00
cmd Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
config Fix build failures on PaX/GRSecurity patched kernels 2012-07-17 09:22:43 -07:00
dracut Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
etc Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
include Fix build failures on PaX/GRSecurity patched kernels 2012-07-17 09:22:43 -07:00
lib Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
man Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
module Disable .zfs directory on 32-bit systems 2012-07-20 12:20:57 -07:00
patches Add build system 2010-08-31 13:41:27 -07:00
scripts Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
udev Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
.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 Fix build failures on PaX/GRSecurity patched kernels 2012-07-17 09:22:43 -07:00
configure.ac Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00
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 Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00
Makefile.in Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
META ZFS 0.6.0-rc9 2012-06-14 11:46:40 -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 Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
zfs-modules.spec.in Remove Chaos 4.x RPM support 2012-07-02 15:16:05 -07:00
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.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00
zfs.spec.in Mark zdev.conf as a config file 2012-06-13 13:02:43 -07:00

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