f5f2b87df0
Currently taskq_dispatch() will spawn new task with a condition that the caller is also a member of the taskq. However, under this condition, it will still cause deadlock where a task on tq1 is waiting another thread, who is trying to dispatch a task on tq1. So this patch removes the check. For example when you do: zfs send pp/fs0@001 | zfs recv pp/fs0_copy This will easily deadlock before this patch. Also, move the seq_task check from taskq_thread_spawn() to taskq_thread() because it's not used by the caller from taskq_dispatch(). Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #496 |
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| autogen.sh | ||
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| DISCLAIMER | ||
| Makefile.am | ||
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| README.markdown | ||
| spl.release.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 do not want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.
To build packages for your distribution:
$ ./configure
$ make pkg
If you are building directly from the git tree and not an officially released tarball you will need to generate the configure script. This can be done by executing the autogen.sh script after installing the GNU autotools for your distribution.
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-...
The SPL comes with an automated test suite called SPLAT. The test suite is implemented in two parts. There is a kernel module which contains the tests and a user space utility which controls which tests are run. To run the full test suite:
$ sudo insmod ./module/splat/splat.ko
$ sudo ./cmd/splat --all
Full documentation for building, configuring, testing, and using the SPL can be found at: http://zfsonlinux.org