From: Oleg Nesterov <oleg@redhat.com>
To: Breno Leitao <leitao@debian.org>,
Christian Brauner <brauner@kernel.org>,
Mateusz Guzik <mjguzik@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>, Jan Kara <jack@suse.cz>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/1] pipe: only enable the extra wake_up(rd_wait) when epoll is actually used
Date: Thu, 23 Jul 2026 16:51:40 +0200 [thread overview]
Message-ID: <amIqfCo25rLtM2U0@redhat.com> (raw)
Breno, Christian, Mateusz,
To be honest, I am not sure this change makes a lot of sense.
But somehow the extra wakeup in anon_pipe_write() looks annoying to me.
Can you take a look?
Plus I'd like to know what sashiko.dev thinks.
I have no idea how to test it wrt performance...
Oleg.
---
fs/pipe.c | 23 +++++++++++++++++++----
include/linux/pipe_fs_i.h | 6 ++++--
2 files changed, 23 insertions(+), 6 deletions(-)
next reply other threads:[~2026-07-23 14:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-23 14:51 Oleg Nesterov [this message]
2026-07-23 14:52 ` [PATCH 1/1] pipe: only enable the extra wake_up(rd_wait) when epoll is actually used Oleg Nesterov
2026-07-23 16:41 ` Mateusz Guzik
2026-07-23 15:10 ` [PATCH 0/1] " Oleg Nesterov
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