d074912d2e
[ Upstream commit e79e0e1428188b24c3b57309ffa54a33c4ae40c4 ] Before this patch, you could get into situations like this: 1. Process 1 searches for X free blocks, finds them, makes a reservation 2. Process 2 searches for free blocks in the same rgrp, but now the bitmap is full because process 1's reservation is skipped over. So it marks the bitmap as GBF_FULL. 3. Process 1 tries to allocate blocks from its own reservation, but since the GBF_FULL bit is set, it skips over the rgrp and searches elsewhere, thus not using its own reservation. This patch adds an additional check to allow processes to use their own reservations. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.