On Fri, Feb 14, 2020 at 8:00 AM Sasha Levin sashal@kernel.org wrote:
From: Linus Torvalds torvalds@linux-foundation.org
[ Upstream commit 0ddad21d3e99c743a3aa473121dc5561679e26bb ]
This makes the pipe code use separate wait-queues and exclusive waiting for readers and writers, [..]
Oh, and since I didn't react initially, let me react now that Andrei found a bug here: why was this patch auto-selected for 5.5 stable in the first place?
It wasn't really a fix, and there's no Fixes: tag or stable tag in there. Yeah, there's a reference to an old commit, but that one isn't even a kernel commit.
Yeah, the performance improvements are quite nice if you hit the case this matters for, but still..
Linus