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Brian Behlendorf dd3678fc29 Fix atomic64_* autoconf checks 
The SPL_AC_ATOMIC_SPINLOCK, SPL_AC_TYPE_ATOMIC64_CMPXCHG, and
SPL_AC_TYPE_ATOMIC64_XCHG were all directly including the
'asm/atomic.h' header.  As of Linux 3.4 this header was removed
which results in a build failure.

The right thing to do is include 'linux/atomic.h' however we
can't safely do this because it doesn't exist in 2.6.26 kernels.
Therefore, we include 'linux/fs.h' which in turn includes the
correct atomic header regardless of the kernel version.

When these incorrect APIs are used in ZFS the following build
failure results.

  arc.c:791:80: warning: '__ret' may be used uninitialized
  in this function [-Wuninitialized]
  arc.c:791:1875: error: call to '__cmpxchg_wrong_size'
  declared with attribute error: Bad argument size for cmpxchg

Since this is all Linux 2.6.24 compatibility code there's
an argument to be made that it should be removed because
kernels this old are not supported.  However, because we're
so close to a release I'm going to leave it in place for now.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes zfsonlinux/zfs#814
Closes zfsonlinux/zfs#1254
2013-02-05 10:05:46 -08:00
cmd splat command verbose behavior 2012-12-11 15:08:19 -08:00
config Fix atomic64_* autoconf checks 2013-02-05 10:05:46 -08:00
include Define BE_IN16 & BE_IN32 for lz4 compression 2013-01-29 09:30:23 -08:00
lib Remove autotools products 2012-08-27 11:46:23 -07:00
module Fix tsd_get/set() race with tsd_exit/destroy() 2013-01-31 13:54:59 -08:00
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 2012-09-11 10:12:47 -07:00
AUTHORS Refresh AUTHORS 2012-12-19 09:40:18 -08:00
autogen.sh Remove autotools products 2012-08-27 11:46:23 -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 Do not use KERNEL_DIR env var in Makefile.am 2012-12-17 10:59:12 -08:00
META SPL 0.6.0-rc14 2013-02-01 11:24:54 -08:00
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-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 Remove the ChangeLog 2012-12-19 09:28:18 -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