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9db4dc241e
It's currently u64 which gets instantly translated either to LONG_MAX (if U64_MAX is passed) or cast to an unsigned long (which is in fact, wrong because writeback_control::nr_to_write is a signed, long type). Just convert the function's argument to be long time which obviates the need to manually convert u64 value to a long. Adjust all call sites which pass U64_MAX to pass LONG_MAX. Finally ensure that in shrink_delalloc the u64 is converted to a long without overflowing, resulting in a negative number. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.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.