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Pass a non-NULL minext to gfs2_rbm_find even for single-block allocations. In gfs2_rbm_find, also set rgd->rd_extfail_pt when a single-block allocation fails in a resource group: there is no reason for treating that case differently. In gfs2_reservation_check_and_update, only check how many free blocks we have if more than one block is requested; we already know there's at least one free block. In addition, when allocating N blocks fails in gfs2_rbm_find, we need to set rd_extfail_pt to N - 1 rather than N: rd_extfail_pt defines the biggest allocation that might still succeed. Finally, reset rd_extfail_pt when updating the resource group statistics in update_rgrp_lvb, as we already do in gfs2_rgrp_bh_get. Signed-off-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.
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.