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| Filename | Latest commit message | Latest commit date |
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2a54003e7a
Jesper Dangaard Brouer says: ==================== xdp: page_pool fixes and in-flight accounting This patchset fix page_pool API and users, such that drivers can use it for DMA-mapping. A number of places exist, where the DMA-mapping would not get released/unmapped, all these are fixed. This occurs e.g. when an xdp_frame gets converted to an SKB. As network stack doesn't have any callback for XDP memory models. The patchset also address a shutdown race-condition. Today removing a XDP memory model, based on page_pool, is only delayed one RCU grace period. This isn't enough as redirected xdp_frames can still be in-flight on different queues (remote driver TX, cpumap or veth). We stress that when drivers use page_pool for DMA-mapping, then they MUST use one packet per page. This might change in the future, but more work lies ahead, before we can lift this restriction. This patchset change the page_pool API to be more strict, as in-flight page accounting is added. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.