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Brian Behlendorf 6a95d0b74c Fix NULL deref in balance_pgdat() 
Be careful not to unconditionally clear the PF_MEMALLOC bit in
the task structure.  It may have already been set when entering
zpl_putpage() in which case it must remain set on exit.  In
particular the kswapd thread will have PF_MEMALLOC set in
order to prevent it from entering direct reclaim.  By clearing
it we allow the following NULL deref to potentially occur.

  BUG: unable to handle kernel NULL pointer dereference at (null)
  IP: [<ffffffff8109c7ab>] balance_pgdat+0x25b/0x4ff

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #287
2011-11-03 10:15:39 -07:00
cmd Change sun.com URLs to zfsonlinux.org 2011-10-24 09:52:21 -07:00
config Convert 'if' statements to AS_IF in kernel.m4 2011-09-06 13:20:48 -07:00
dracut Synchronize initramfs and system hostid 2011-09-30 13:31:00 -07:00
etc Use automatic variable in Makefile 2011-09-26 09:22:30 -07:00
include Illumos #755: dmu_recv_stream builds incomplete guid_to_ds_map 2011-10-18 11:18:14 -07:00
lib Make libefi-created GPT compatible with gptfdisk 2011-09-26 09:44:43 -07:00
man Autogen refresh for udev changes 2011-08-08 16:30:27 -07:00
module Fix NULL deref in balance_pgdat() 2011-11-03 10:15:39 -07:00
patches Add build system 2010-08-31 13:41:27 -07:00
scripts Disable 90-zfs.rules for test suite 2011-10-11 14:45:37 -07:00
udev Move 90-zfs udev rule from dracut to udev/rules.d 2011-08-19 16:26:13 -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 Convert 'if' statements to AS_IF in kernel.m4 2011-09-06 13:20:48 -07:00
configure.ac Fix autoconf variable substitution in init scripts. 2011-08-19 16:26:14 -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 udev rules from /etc/udev to /lib/udev 2011-08-08 16:21:10 -07:00
Makefile.in Autogen refresh for udev changes 2011-08-08 16:30:27 -07:00
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
README.markdown Fix markdown rendering 2010-09-15 09:09:37 -07:00
zfs_config.h.in Add backing_device_info per-filesystem 2011-08-04 13:37:38 -07:00
zfs-modules.spec.in Include distribution in release 2011-10-19 11:43:27 -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.spec.in Include distribution in release 2011-10-19 11:43:27 -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