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69edf98be8
UBLK_F_USER_COPY and UBLK_F_SUPPORT_ZERO_COPY are two different features, and shouldn't be coupled together. Commit1f6540e2aa("ublk: zc register/unregister bvec") enables user copy automatically in case of UBLK_F_SUPPORT_ZERO_COPY, this way isn't correct. So decouple zero copy from user copy, and use independent helper to check each one. Fixes:1f6540e2aa("ublk: zc register/unregister bvec") Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250429022941.1718671-3-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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 reStructuredText 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.