From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 11 Apr 2024 20:09:26 +0000 (-0400)
Subject: ring buffer: Use cpu_dcache_is_aliasing()
X-Git-Url: https://git.liburcu.org/?a=commitdiff_plain;h=18fd64422b4297f9beea82f1c1a97b80791312e4;hp=18fd64422b4297f9beea82f1c1a97b80791312e4;p=lttng-modules.git

ring buffer: Use cpu_dcache_is_aliasing()

Upstream Linux commit 8690bbcf3b7 ("Introduce cpu_dcache_is_aliasing()
across all architectures") allows checking whether the architecture has
aliasing data caches more accurately. This will be present in upstream
Linux v6.9 (currently in v6.9-rc3).

I expect this to improve the ring buffer performance on ARM64 and
32-bit ARM with non-aliasing data caches.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I3e29966b8c8cab098d57437a11f1f94c53a9e186
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