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053640a738
When a withdraw occurs, ordinary (not system) glocks may not be granted anymore. Later, when the file system is unmounted, gfs2_gl_hash_clear() tries to clear out all the glocks, but these un-grantable pending waiters prevent some glocks from being freed. So the unmount hangs, at least for its ten-minute timeout period. This patch takes measures to remove any pending waiters from the glocks that will never be granted. This allows the unmount to proceed in a reasonable period of time. Signed-off-by: Bob Peterson <rpeterso@redhat.com> 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.