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Andreas Gruenbacher ae4d9781ed gfs2: Retries missing in gfs2_{rename,exchange}
[ Upstream commit 11d763f0b0 ]

Fix a bug in gfs2's asynchronous glock handling for rename and exchange
operations.  The original async implementation from commit ad26967b9a
("gfs2: Use async glocks for rename") mentioned that retries were needed
but never implemented them, causing operations to fail with -ESTALE
instead of retrying on timeout.

Also makes the waiting interruptible.

In addition, the timeouts used were too high for situations in which
timing out is a rare but expected scenario.  Switch to shorter timeouts
with randomization and exponentional backoff.

Fixes: ad26967b9a ("gfs2: Use async glocks for rename")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-03-04 07:19:23 -05:00
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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.