Bob Peterson
dffe12a828
Function gfs2_testbit is called in three places. Two of those places, gfs2_alloc_extent and gfs2_unaligned_extlen, should be using the clone bitmaps, not the "real" bitmaps. Function gfs2_unaligned_extlen is used by the block reservations scheme to determine the length of an extent of free blocks. Before this patch, it wasn't using the clone bitmap, which means recently-freed blocks were treated as free blocks for the purposes of an allocation. This patch adds a new parameter to gfs2_testbit to indicate whether or not the clone bitmaps should be used (if available). Signed-off-by: Bob Peterson <rpeterso@redhat.com> Reviewed-by: Andreas Gruenbacher <agruenba@redhat.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.