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Brian Behlendorf 4b2220f0b9 Add --enable-debug-log configure option
Until now the notion of an internal debug logging infrastructure
was conflated with enabling ASSERT()s.  This patch clarifies things
by cleanly breaking the two subsystem apart.  The result of this
is the following behavior.

--enable-debug      - Enable/disable code wrapped in ASSERT()s.
--disable-debug       ASSERT()s are used to check invariants and
                      are never required for correct operation.
                      They are disabled by default because they
                      may impact performance.

--enable-debug-log  - Enable/disable the debug log infrastructure.
--disable-debug-log   This infrastructure allows the spl code and
                      its consumer to log messages to an in-kernel
                      log.  The granularity of the logging can be
                      controlled by a debug mask.  By default the
                      mask disables most debug messages resulting
                      in a negligible performance impact.  Because
                      of this the debug log is enabled by default.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2012-02-02 11:27:54 -08:00
cmd Add make rule for building Arch Linux packages 2011-12-14 16:44:10 -08:00
config Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
include Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
lib Add make rule for building Arch Linux packages 2011-12-14 16:44:10 -08:00
module Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
patches Reimplement rwlocks for Linux lock profiling/analysis. 2009-09-18 16:09:47 -07:00
scripts Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
.gitignore Ignore unsigned module build products 2010-03-11 14:29:17 -08:00
AUTHORS Public Release Prep 2010-05-17 15:18:00 -07:00
autogen.sh Public Release Prep 2010-05-17 15:18:00 -07:00
ChangeLog Prep for spl-0.5.0 tag 2010-08-13 09:33:50 -07:00
configure Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
configure.ac Add make rule for building Arch Linux packages 2011-12-14 16:44:10 -08:00
COPYING Public Release Prep 2010-05-17 15:18:00 -07:00
DISCLAIMER Public Release Prep 2010-05-17 15:18:00 -07:00
INSTALL Public Release Prep 2010-05-17 15:18:00 -07:00
Makefile.am Add the release component to headers 2012-01-18 11:06:26 -08:00
Makefile.in Add the release component to headers 2012-01-18 11:06:26 -08:00
META Prep spl-0.6.0-rc6 tag 2011-10-06 14:58:09 -07:00
PKGBUILD-spl-modules.in Add make rule for building Arch Linux packages 2011-12-14 16:44:10 -08:00
PKGBUILD-spl.in Add make rule for building Arch Linux packages 2011-12-14 16:44:10 -08:00
README.markdown Fix markdown rendering 2010-09-15 09:05:34 -07:00
spl_config.h.in Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
spl-modules.spec.in Fix rpm dependencies 2012-01-18 11:24:36 -08:00
spl.spec.in Fix rpm dependencies 2012-01-18 11:24:36 -08:00

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 dont want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.

To build packages for your distribution:

$ ./configure
$ make pkg

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