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Brian Behlendorf 7bd04f2d7d Set default zvol elevator to noop
It doesn't make sense for a zvol to use the default system I/O
scheduler because it is a virtual device.  Therefore, we change
the default scheduler to 'noop' for zvols provided that the
elevator_change() function is available.  This interface has
been available since Linux 2.6.36 and appears in the RHEL 6.x
kernels.

We deliberately do not implement the method for older kernels
because it was racy and could result in system crashes.  It's
better to simply manually tune the scheduler for these kernels.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1017
2012-10-05 12:39:59 -07:00
cmd Realpath arg 2 must be a minimum of PATH_MAX 2012-10-04 13:19:10 -07:00
config Modify vdev_elevator_switch() to use elevator_change() 2012-10-03 13:31:44 -07:00
dracut Remove autotools products 2012-08-27 11:47:44 -07:00
etc Remove autotools products 2012-08-27 11:47:44 -07:00
include Illumos #3100: zvol rename fails with EBUSY when dirty. 2012-10-03 13:59:02 -07:00
lib Illumos #3100: zvol rename fails with EBUSY when dirty. 2012-10-03 13:59:02 -07:00
man Illumos #2399: zfs manual page does not document use of "zfs diff". 2012-10-03 13:59:02 -07:00
module Set default zvol elevator to noop 2012-10-05 12:39:59 -07:00
patches Adding grub2 mkconfig support patch 2012-07-30 16:17:23 -07:00
scripts Force 4K blocksize when testing ext2 on zvol. 2012-10-03 10:52:51 -07:00
udev Remove autotools products 2012-08-27 11:47:44 -07:00
.gitignore Remove autotools products 2012-09-11 10:15:13 -07:00
AUTHORS Add "ashift" property to zpool create 2011-06-17 16:35:49 -07:00
autogen.sh Remove autotools products 2012-08-27 11:47:44 -07:00
ChangeLog Add build system 2010-08-31 13:41:27 -07:00
configure.ac Add zstreamdump(8) command to examine ZFS send streams. 2012-09-02 14:54:27 -07:00
copy-builtin Consistent menuconfig name 2012-08-26 13:49:37 -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
dkms.conf.in Support building a zfs-modules-dkms sub package 2012-08-08 15:21:01 -07:00
dkms.postinst Support building a zfs-modules-dkms sub package 2012-08-08 15:21:01 -07:00
Makefile.am Add copy-builtin to EXTRA_DIST 2012-08-23 09:50:00 -07:00
META zfs-0.6.0-rc11 2012-09-18 11:30:24 -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 Add script for builtin module building. 2012-07-26 13:45:09 -07:00
zfs-modules.spec.in Cleanly remove zfs-modules-devel headers 2012-08-13 16:35:26 -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 Fix man page installation path 2012-08-10 15:32:30 -07:00

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

To copy the kernel code inside your kernel source tree for builtin compilation:

$ ./configure --enable-linux-builtin --with-linux=/usr/src/linux-...
$ ./copy-builtin /usr/src/linux-...

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