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ccd608e29b
The *count parameter does not appear to be explicitly restricted to being smaller than rsize, so it might be possible to overrun the rq_bvec or rq_pages arrays. Rather than overrunning these arrays (damage done!) and then WARNING once, let's harden the loop so that it terminates before the end of the arrays are reached. This should result in a short read, which is OK -- clients recover by sending additional READ requests for the remaining unread bytes. Reported-by: NeilBrown <neil@brown.name> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Mike Snitzer <snitzer@kernel.org> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Chuck Lever <chuck.lever@oracle.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 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.