gfs2: Retries missing in gfs2_{rename,exchange}

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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>

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This commit is contained in:

Andreas Gruenbacher 2025-12-09 22:59:12 +00:00

parent f8f04248c7

commit 11d763f0b0

3 changed files with 43 additions and 14 deletions

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36

fs/gfs2/glock.c

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3

fs/gfs2/glock.h

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18

fs/gfs2/inode.c

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