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c02f652986
In commit8ad560d256, we changed xfs_rtalloc_query_range to constrain the range of bits in the realtime bitmap file that would actually be searched. In commita3a374bf18, we changed the range again (incorrectly), leading to the fix in commitd88850bd55, which finally corrected the range check code. Unfortunately, the author never noticed that the function modifies its input parameters, which is a totaly no-no since none of the other range query functions change their input parameters. So, fix this function yet again to stash the upper end of the query range (i.e. the high key) in a local variable and hope this is the last time I have to fix my own function. While we're at it, mark the key inputs const so nobody makes this mistake again. :( Fixes:8ad560d256("xfs: strengthen rtalloc query range checks") Not-fixed-by:a3a374bf18("xfs: fix off-by-one error in xfs_rtalloc_query_range") Not-fixed-by:d88850bd55("xfs: fix high key handling in the rt allocator's query_range function") Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.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.