mainlining shenanigans
a10453c038
If /dev/kvm is not available then hardware_disable_test will hang indefinitely because the child process exits before posting to the semaphore for which the parent is waiting. Fix this by making the parent periodically check if the child has exited. We have to be careful to forward the child's exit status to preserve a KSFT_SKIP status. I considered just checking for /dev/kvm before creating the child process, but there are so many other reasons why the child could exit early that it seemed better to handle that as general case. Tested: $ ./hardware_disable_test /dev/kvm not available, skipping test $ echo $? 4 $ modprobe kvm_intel $ ./hardware_disable_test $ echo $? 0 Signed-off-by: David Matlack <dmatlack@google.com> Message-Id: <20210514230521.2608768-1-dmatlack@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.