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maple_tree: testing update for spanning store

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Spanning store had some corner cases which showed up during rcu stress
testing.  Add explicit tests for those cases.

At the same time add some locking for easier visibility of the rcu stress
testing.  Only a single dump of the tree will happen on the first detected
issue instead of flooding the console with output.

Link: https://lkml.kernel.org/r/20260130205935.2559335-13-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrew Ballance <andrewjballance@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett 2026-01-30 15:59:17 -05:00 • committed by Andrew Morton
commit b14ffd2c6c
1 changed files with 163 additions and 9 deletions
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