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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> |
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| ChangeLog | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| DISCLAIMER | ||
| INSTALL | ||
| Makefile.am | ||
| Makefile.in | ||
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| README.markdown | ||
| spl_config.h.in | ||
| spl-modules.spec.in | ||
| spl.spec.in | ||
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
Full documentation for building, configuring, and using the SPL can be found at: http://zfsonlinux.org