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e424aa5f54
A recent log refactoring patchset from Brian Foster relaxed fsfreeze behavior with regards to the buffer cache -- now freeze only waits for pending buffer IO to finish, and does not try to drain the buffer cache LRU. As a result, fsfreeze should no longer stall indefinitely while fsmap runs. Drop the sb_start_write calls around fsmap invocations. While we're cleaning things, add a comment to the xfs_trans_alloc_empty call explaining why we're running around with empty transactions. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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.