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Brian Behlendorf 95331f4437 Set KMC_NOEMERGENCY for zlib workspaces 
The workspace required by zlib to perform compression is roughly
512MB (order-7).  These allocations are so large that we should
never attempt to directly kmalloc an emergency object for them.

It is far preferable to asynchronously vmalloc an additional slab
in case it's needed.  Then simply block waiting for an existing
object to be released or for the new slab to be allocated.

This can be accomplished by disabling emergency slab objects by
passing the KMC_NOEMERGENCY flag at slab creation time.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
zfsonlinux/zfs#917
2012-09-07 14:36:26 -07:00
cmd Remove autotools products 2012-08-27 11:46:23 -07:00
config Revert "Detect kernels that honor gfp flags passed to vmalloc()" 2012-08-27 12:00:55 -07:00
include Add KMC_NOEMERGENCY slab flag 2012-09-07 14:27:03 -07:00
lib Remove autotools products 2012-08-27 11:46:23 -07:00
module Set KMC_NOEMERGENCY for zlib workspaces 2012-09-07 14:36:26 -07:00
patches Reimplement rwlocks for Linux lock profiling/analysis. 2009-09-18 16:09:47 -07:00
scripts Remove autotools products 2012-08-27 11:46:23 -07:00
.gitignore Remove autotools products 2012-08-27 11:46:23 -07:00
AUTHORS Public Release Prep 2010-05-17 15:18:00 -07:00
autogen.sh Remove autotools products 2012-08-27 11:46:23 -07:00
ChangeLog Prep for spl-0.5.0 tag 2010-08-13 09:33:50 -07:00
configure.ac Support building a spl-modules-dkms sub package 2012-08-08 13:49:40 -07:00
copy-builtin Add script for builtin module building. 2012-07-26 15:13:09 -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
dkms.conf.in Support building a spl-modules-dkms sub package 2012-08-08 13:49:40 -07:00
dkms.postinst Support building a spl-modules-dkms sub package 2012-08-08 13:49:40 -07:00
INSTALL Public Release Prep 2010-05-17 15:18:00 -07:00
Makefile.am Add copy-builtin to EXTRA_DIST 2012-08-23 09:59:40 -07:00
META SPL 0.6.0-rc10 2012-08-13 16:34:39 -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 Add script for builtin module building. 2012-07-26 15:13:09 -07:00
spl_config.h.in Revert "Detect kernels that honor gfp flags passed to vmalloc()" 2012-08-27 12:00:55 -07:00
spl-modules.spec.in Cleanly remove spl-modules-devel headers 2012-08-13 16:34:32 -07:00
spl.release.in Move spl.release generation to configure step 2012-07-12 12:13:47 -07:00
spl.spec.in Fix rpm dependencies 2012-01-18 11:24:36 -08:00

README.markdown

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 don’t want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.

To build packages for your distribution:

$ ./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 the SPL can be found at: http://zfsonlinux.org