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Richard Yao acf0ade362 Simplify hostid logic
There is plenty of compatibility code for a hw_hostid
that isn't used by anything. At the same time, there are apparently
issues with the current hostid logic. coredumb in #zfsonlinux on
freenode reported that Fedora 17 changes its hostid on every boot, which
required force importing his pool. A suggestion by wca was to adopt
FreeBSD's behavior, where it treats hostid as zero if /etc/hostid does
not exist

Adopting FreeBSD's behavior permits us to eliminate plenty of code,
including a userland helper that invokes the system's hostid as a
fallback.

Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #224
2014-04-14 09:04:41 -07:00
cmd Refresh links to web site 2013-03-04 19:09:34 -08:00
config Linux 3.13 compat: Pass NULL for new delegated inode argument 2013-12-02 10:37:49 -08:00
include Simplify hostid logic 2014-04-14 09:04:41 -07:00
lib Remove autotools products 2012-08-27 11:46:23 -07:00
man Remove incorrect use of EXTRA_DIST for man pages 2014-01-17 11:54:22 -08:00
module Simplify hostid logic 2014-04-14 09:04:41 -07:00
patches Reimplement rwlocks for Linux lock profiling/analysis. 2009-09-18 16:09:47 -07:00
rpm Document SPL module parameters. 2013-11-21 12:32:41 -08:00
scripts Add kmod repo integration 2013-08-01 10:27:34 -07:00
.gitignore Ignore *.{deb,rpm,tar.gz} files in the top directory. 2013-04-24 16:18:14 -07:00
AUTHORS Refresh AUTHORS 2012-12-19 09:40:18 -08:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 11:08:46 -07:00
configure.ac Document SPL module parameters. 2013-11-21 12:32:41 -08:00
copy-builtin Copy spl.release.in to kernel dir 2013-06-21 15:40:04 -07:00
COPYING Public Release Prep 2010-05-17 15:18:00 -07:00
DISCLAIMER Public Release Prep 2010-05-17 15:18:00 -07:00
Makefile.am build: do not call boilerplate ourself 2013-04-02 11:08:46 -07:00
META Tag spl-0.6.2 2013-08-16 15:17:35 -07:00
README.markdown Document how to run SPLAT 2013-10-09 13:52:59 -07:00
spl.release.in Move spl.release generation to configure step 2012-07-12 12:13:47 -07:00

The Solaris Porting Layer (SPL) is a Linux kernel module which provides many of the Solaris kernel APIs. This shim layer makes it possible to run Solaris kernel code in the Linux kernel with relatively minimal modification. This can be particularly useful when you want to track upstream Solaris development closely and do not want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.

To build packages for your distribution:

$ ./configure
$ make pkg

If you are building directly from the git tree and not an officially released tarball you will need to generate the configure script. This can be done by executing the autogen.sh script after installing the GNU autotools for your distribution.

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-...

The SPL comes with an automated test suite called SPLAT. The test suite is implemented in two parts. There is a kernel module which contains the tests and a user space utility which controls which tests are run. To run the full test suite:

$ sudo insmod ./module/splat/splat.ko
$ sudo ./cmd/splat --all

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