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b73e05281c
Marking a log item as failed kept a buffer reference around for resubmission of inode and dquote items. For inode items commit298f7bec50("xfs: pin inode backing buffer to the inode log item") started pinning the inode item buffers unconditionally and removed the need for this. Later commitacc8f8628c("xfs: attach dquot buffer to dquot log item buffer") did the same for dquot items but didn't fully clean up the xfs_clear_li_failed side for them. Stop adding the extra pin for dquot items and remove the helpers. This happens to fix a call to xfs_buf_free with the AIL lock held, which would be incorrect for the unlikely case freeing the buffer ends up calling vfree. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by: Carlos Maiolino <cem@kernel.org>
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 reStructuredText 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.