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e9d09baca6
Currently the msk->flags bitmask carries both state for the mptcp_release_cb() - mostly touched under the mptcp data lock - and others state info touched even outside such lock scope. As a consequence, msk->flags is always manipulated with atomic operations. This change splits such bitmask in two separate fields, so that we use plain bit operations when touching the cb-related info. The MPTCP_PUSH_PENDING bit needs additional care, as it is the only CB related field currently accessed either under the mptcp data lock or the mptcp socket lock. Let's add another mask just for such bit's sake. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.