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Brian Behlendorf 06089b9e19 Ensure direct reclaim forward progress
The Linux direct reclaim path uses this out of band value to
determine if forward progress is being made.  Normally this is
incremented by kmem_freepages() which is part of the various
Linux slab implementations.  However, since we are using none
of that infrastructure we're responsible for incrementing this
count.

If no forward progress is detected and a subsequent allocation
fails the OOM killer will be invoked.  If there was forward
progress additional reclaim will be attempted via the page
cache and registerd shrinker until the allocation succeeds.

Signed-off-by: Prakash Surya <surya1@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #107
2012-05-07 11:54:19 -07:00
cmd Cleanly support debug packages 2012-02-27 14:24:22 -08:00
config Fix distribution detection 2012-03-05 10:38:38 -08:00
include Throttle number of freed slabs based on nr_to_scan 2012-05-07 11:46:15 -07:00
lib Cleanly support debug packages 2012-02-27 14:24:22 -08:00
module Ensure direct reclaim forward progress 2012-05-07 11:54:19 -07:00
patches Reimplement rwlocks for Linux lock profiling/analysis. 2009-09-18 16:09:47 -07:00
scripts Cleanly support debug packages 2012-02-27 14:24:22 -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 Fix distribution detection 2012-03-05 10:38:38 -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 Cleanly support debug packages 2012-02-27 14:24:22 -08:00
META SPL 0.6.0-rc8 2012-03-26 11:57:13 -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 Cleanly support debug packages 2012-02-27 14:24:22 -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