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Brian Behlendorf fe71c0e567 Linux 3.1 compat, shrink_*cache_memory
As of Linux 3.1 the shrink_dcache_memory and shrink_icache_memory
functions have been removed.  This same task is now accomplished
more cleanly with per super block shrinkers.  This unfortunately
leaves us no easy way to support the dnlc_reduce_cache() function.

This support has always been entirely optional.  So when no
reasonable interface is available allow the dnlc_reduce_cache()
function to effectively become a no-op.

The downside of this change is that it will prevent the zfs arc
meta data limts from being enforced.  However, the current zfs
implementation in this regard is already flawed and needs to
be reworked.  If the arc needs to enfore a meta data limit it
will need to be extended to coordinate directly with the zpl.
This will allow us to drop all this compatibility code and get
more fine grained control over the cache management.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #52
2011-11-09 19:36:30 -08:00
cmd Support custom build directories 2010-09-05 21:49:05 -07:00
config Linux 3.1 compat, vfs_fsync() 2011-11-09 19:36:21 -08:00
include Linux 3.1 compat, shrink_*cache_memory 2011-11-09 19:36:30 -08:00
lib Support custom build directories 2010-09-05 21:49:05 -07:00
module Linux 3.1 compat, shrink_*cache_memory 2011-11-09 19:36:30 -08:00
patches Reimplement rwlocks for Linux lock profiling/analysis. 2009-09-18 16:09:47 -07:00
scripts Load zlib_inflate.ko 2011-03-22 12:18:44 -07:00
.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 Linux 3.1 compat, vfs_fsync() 2011-11-09 19:36:21 -08:00
configure.ac Support custom build directories 2010-09-05 21:49:05 -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
INSTALL Public Release Prep 2010-05-17 15:18:00 -07:00
Makefile.am Support custom build directories 2010-09-05 21:49:05 -07:00
Makefile.in Avoid 'rpm -q' bug for 'make pkg' 2011-06-16 11:49:38 -07:00
META Prep spl-0.6.0-rc6 tag 2011-10-06 14:58:09 -07:00
README.markdown Fix markdown rendering 2010-09-15 09:05:34 -07:00
spl_config.h.in Linux 3.1 compat, vfs_fsync() 2011-11-09 19:36:21 -08:00
spl-modules.spec.in Include distribution in release 2011-10-19 11:41:15 -07:00
spl.spec.in Include distribution in release 2011-10-19 11:41:15 -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 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