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When testing that the timeout fired, we need to be sure we have waited just long enough for the timeout to have occurred and for the softirq (on another cpu) to have completed. Sleeping for an arbitrary amount is prone to error, so wait for the timeout instead and complain if it was too late. v2: Use wait_event_timeout to provide an upper bound v3: Fix inverted check for wait_event_timeout timing out v4: Restore the check that the fences aren't signalled too early, by inspecting them before the expected timeout. References: https://bugs.freedesktop.org/show_bug.cgi?id=104670 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180117135713.2324-1-chris@chris-wilson.co.uk |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.