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The buffer ID for a provided buffer is an unsigned short, and hence there can only be 64k added to any given buffer list before having duplicate BIDs. Cap the legacy provided buffers at 64k in the list. This is mostly to prevent silly stall reports from syzbot, which likes to dump tons of buffers into a list and then have kernels with lockdep and kasan churning through them and hitting long wait times for buffer pruning at ring exit time. Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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| ipc | ||
| kernel | ||
| lib | ||
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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 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.