OpenZFS on Linux and FreeBSD
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Brian Behlendorf bfd214af01 Fix inflated load average
Kernel threads which sleep uninterruptibly on Linux are marked in the (D)
state.  These threads are usually in the process of performing IO and are
thus counted against the load average.  The txg_quiesce and txg_sync threads
were always sleeping uninterruptibly and thus inflating the load average.

This change makes them sleep interruptibly.  Some care is required however
because these threads may now be woken early by signals.  In this case the
callers are all careful to check that the required conditions are met after
waking up.  If we're woken early due to a signal they will simply go back
to sleep.  In this case these changes are safe.

Closes #175
2011-03-31 17:07:12 -07:00
cmd Fixes to enable zvol symlink creation 2011-03-24 11:48:18 -07:00
config Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
dracut Add dracut support 2011-03-17 16:52:04 -07:00
etc Set cmd paths in udev rules using --prefix 2011-03-25 10:05:09 -07:00
include Fixes to enable zvol symlink creation 2011-03-24 11:48:18 -07:00
lib Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
man Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
module Fix inflated load average 2011-03-31 17:07:12 -07:00
patches Add build system 2010-08-31 13:41:27 -07:00
scripts Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
.gitignore Ignore unsigned module build products 2010-03-09 14:14:09 -08:00
AUTHORS Add dracut support 2011-03-17 16:52:04 -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
ChangeLog Add build system 2010-08-31 13:41:27 -07:00
DISCLAIMER Update COPYRIGHT and DISCLAIMER. 2010-05-18 10:32:23 -07:00
META Prep zfs-0.6.0-rc2 tag 2011-03-09 15:26:48 -08:00
Makefile.am Add dracut support 2011-03-17 16:52:04 -07:00
Makefile.in Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -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.RELEASE Update to onnv_147 2010-08-26 14:24:34 -07:00
autogen.sh Minor packaging fixes 2010-09-01 15:42:32 -07:00
configure Set cmd paths in udev rules using --prefix 2011-03-25 10:05:09 -07:00
configure.ac Set cmd paths in udev rules using --prefix 2011-03-25 10:05:09 -07:00
zfs-modules.spec.in Use top level object directory in zfs-module.spec 2010-09-10 12:33:31 -07:00
zfs-script-config.sh.in Unconditionally load core kernel modules 2010-11-11 11:38:25 -08:00
zfs.spec.in Spec file compat, %{datadir} 2011-03-25 10:08:49 -07:00
zfs_config.h.in Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -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