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Because WB performs writes in SLC mode, it is not possible to use WriteBooster indefinitely. Vendors can set a lifetime limit in the device. If the lifetime exceeds this limit, the device ican disable the WB feature. The feature is defined in the "bWriteBoosterBufferLifeTimeEst (IDN = 1E)" attribute. With lifetime exceeding the limit value, the current driver continuously performs the following query: - Write Flag: WB_ENABLE / DISABLE - Read attr: Available Buffer Size - Read attr: Current Buffer Size This patch recognizes that WriteBooster is no longer supported by the device, and prevents unnecessary queries. Link: https://lore.kernel.org/r/1891546521.01643252701746.JavaMail.epsvc@epcpadp3 Reviewed-by: Asutosh Das <quic_asutoshd@quicinc.com> Acked-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.