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maple_tree: Add single node allocation support to maple state
authorLiam R. Howlett <Liam.Howlett@Oracle.com>
Fri, 6 Dec 2024 20:08:19 +0000 (15:08 -0500)
committerLiam R. Howlett <Liam.Howlett@oracle.com>
Thu, 4 Sep 2025 17:49:08 +0000 (13:49 -0400)
commitbcc3b08729a4a101a408b23682a60a8f860a5031
treea3267418d731acb4e2da22399d09567eb86df5c1tree
parent906de0b879121e30fa21b95c5db9c500bdbcb761commit | diff
maple_tree: Add single node allocation support to maple state

The fast path through a write will require replacing a single node in
the tree.  Using a sheaf (32 nodes) is too heavy for the fast path, so
special case the node store operation by just allocating one node in the
maple state.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
include/linux/maple_tree.h diff | blob | history
lib/maple_tree.c diff | blob | history
tools/testing/radix-tree/maple.c diff | blob | history
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