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Ricardo M. Correia c2f997b0b3 Make kmutex_t typesafe in all cases.
When HAVE_MUTEX_OWNER and CONFIG_SMP are defined, kmutex_t is just
a typedef for struct mutex.

This is generally OK but has the downside that it can make mistakes
such as mutex_lock(&kmutex_var) to pass by unnoticed until someone
compiles the code without HAVE_MUTEX_OWNER or CONFIG_SMP (in which
case kmutex_t is a real struct). Note that the correct API to call
should have been mutex_enter() rather than mutex_lock().

We prevent these kind of mistakes by making kmutex_t a real structure
with only one field. This makes kmutex_t typesafe and it shouldn't
have any impact on the generated assembly code.

Signed-off-by: Ricardo M. Correia <ricardo.correia@oracle.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2010-11-29 11:25:32 -08:00
cmd Support custom build directories 2010-09-05 21:49:05 -07:00
config Linux 2.6.36 compat, fs_struct->lock type change 2010-11-09 13:29:47 -08:00
include Make kmutex_t typesafe in all cases. 2010-11-29 11:25:32 -08:00
lib Support custom build directories 2010-09-05 21:49:05 -07:00
module Clear cv->cv_mutex when not in use 2010-11-29 11:02:34 -08:00
patches Reimplement rwlocks for Linux lock profiling/analysis. 2009-09-18 16:09:47 -07:00
scripts Support custom build directories 2010-09-05 21:49:05 -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
COPYING 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
DISCLAIMER Public Release Prep 2010-05-17 15:18:00 -07:00
INSTALL Public Release Prep 2010-05-17 15:18:00 -07:00
META Prep for 0.5.2 tag 2010-11-05 11:52:46 -07:00
Makefile.am Support custom build directories 2010-09-05 21:49:05 -07:00
Makefile.in Support custom build directories 2010-09-05 21:49:05 -07:00
README.markdown Fix markdown rendering 2010-09-15 09:05:34 -07:00
autogen.sh Public Release Prep 2010-05-17 15:18:00 -07:00
configure Linux 2.6.36 compat, fs_struct->lock type change 2010-11-09 13:29:47 -08:00
configure.ac Support custom build directories 2010-09-05 21:49:05 -07:00
spl-modules.spec.in Minor spec file cleanup for RHEL6 package dependency. 2010-05-21 11:53:49 -07:00
spl.spec.in Remove usage of the __id_u macro for portability. 2009-10-05 12:51:58 -07:00
spl_config.h.in Linux 2.6.36 compat, fs_struct->lock type change 2010-11-09 13:29:47 -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 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