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[ Upstream commit 4e19443da1941050b346f8fc4c368aa68413bc88 ] Sometimes when running generic/475 we would trip the WARN_ON(cache->reserved) check when free'ing the block groups on umount. This is because sometimes we don't commit the transaction because of IO errors and thus do not cleanup the tree logs until at umount time. These blocks are still reserved until they are cleaned up, but they aren't cleaned up until _after_ we do the free block groups work. Fix this by moving the free after free'ing the fs roots, that way all of the tree logs are cleaned up and we have a properly cleaned fs. A bunch of loops of generic/475 confirmed this fixes the problem. CC: stable@vger.kernel.org # 4.9+ Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.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.