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A user reports APST is enabled, even when the NVMe is quirked or with option "default_ps_max_latency_us=0". The current logic will not set APST if the device is quirked. But the NVMe in question will enable APST automatically. Separate the logic "apst is supported" and "to enable apst", so we can use the latter one to explicitly disable APST at initialiaztion. BugLink: https://bugs.launchpad.net/bugs/1699004 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Reviewed-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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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.