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| author | Liam R. Howlett (Oracle) <liam@infradead.org> | 2026-08-21 15:26:16 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-08-24 18:43:29 -0700 |
| commit | 4bd59d5bc2c8f3e7e1bd62f3a5029471a6b531bb (patch) | |
| tree | 58947d933c99dc463aa2407150f35be43383fde2 | |
| parent | 7d1e34352727cf1073eccbacd13fac075defc7a4 (diff) | |
| download | linux-next-4bd59d5bc2c8f3e7e1bd62f3a5029471a6b531bb.tar.gz linux-next-4bd59d5bc2c8f3e7e1bd62f3a5029471a6b531bb.zip | |
maple_tree: use prefetched value in mas_wr_store_type()
The slot contents exist in wr_mas->content, which has less overhead than
reading the slot again.
Link: https://lore.kernel.org/20260821192627.4085470-9-liam@infradead.org
Signed-off-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Breno Leitao <leitao@debian.org>
Cc: Chris Mason <clm@meta.com>
Cc: Chuck Lever <cel@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Joe Perches <joe@perches.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | lib/maple_tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/maple_tree.c b/lib/maple_tree.c index baaaa128594c..d5fa85bc7aab 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -3280,7 +3280,7 @@ static inline void mas_wr_slot_store(struct ma_wr_state *wr_mas) void __rcu **slots = wr_mas->slots; bool gap = false; - gap |= !mt_slot_locked(mas->tree, slots, offset); + gap |= !wr_mas->content; gap |= !mt_slot_locked(mas->tree, slots, offset + 1); if (wr_mas->offset_end - offset == 1) { |