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Tim Chase 4254acb057 Undirty freed spill blocks. 
If a spill block's dbuf hasn't yet been written when a spill block is
freed, the unwritten version will still be written.  This patch handles
the case in which a spill block's dbuf is freed and undirties it to
prevent it from being written.

The most common case in which this could happen is when xattr=sa is being
used and a long xattr is immediately replaced by a short xattr as in:

	setfattr -n user.test -v very_very_very..._long_value  <file>
	setfattr -n user.test -v short_value  <file>

The first value must be sufficiently long that a spill block is generated
and the second value must be short enough to not require a spill block.
In practice, this would typically happen due to internal xattr operations
as a result of setting acltype=posixacl.

Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2663
Closes #2700
Closes #2701
Closes #2717
Closes #2863
Closes #2884
2014-11-17 11:25:48 -08:00
cmd Print header properly when terminal resizes 2014-11-14 15:32:30 -08:00
config Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
contrib Add bash completions by Aneurin Price. 2014-08-06 15:03:28 -07:00
dracut Amend Dracut module to export ZFS root on shutdown 2014-10-07 10:20:56 -07:00
etc Import zfs pools after cryptsetup 2014-09-04 09:50:45 -07:00
include Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
lib Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
man Fix small spelling mistake 2014-11-14 15:48:51 -08:00
module Undirty freed spill blocks. 2014-11-17 11:25:48 -08:00
rpm Add a pkgconfig file 2014-08-28 07:59:43 -07:00
scripts Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
udev Open pools asynchronously after module load 2013-07-03 09:24:38 -07:00
.gitignore Ignore *.{deb,rpm,tar.gz} files in the top directory. 2013-04-24 16:18:59 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Add a pkgconfig file 2014-08-28 07:59:43 -07:00
copy-builtin Consistent menuconfig name 2012-08-26 13:49:37 -07:00
COPYRIGHT Refresh links to web site 2013-03-06 15:46:41 -08:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Kernel header installation should respect --prefix 2014-10-28 09:37:06 -07:00
META Make license compatibility checks consistent 2014-10-17 14:58:38 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
zfs-script-config.sh.in Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

Native ZFS for Linux!

ZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the Illumos community.

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.

Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org