mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-05 06:18:45 -04:00
a90f55916f
In the case of XDP Multi-Buffer with Striding RQ, an extra page is allocated for the linear part of non-linear SKBs. Including headroom and tailroom in the calculation may result in an unnecessary increase in the amount of memory allocated. This could be critical, particularly for large MTUs (e.g. 7975B) and large RQ sizes (e.g. 8192). In this case, the requested page pool size is 64K, but 32K would be sufficient. This causes a failure due to exceeding the page pool size limit of 32K. Exclude headroom and tailroom from SKB size calculations to reduce page pool size. Signed-off-by: Carolina Jubran <cjubran@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.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.