From: Christian Brauner Date: Tue, 4 Mar 2025 08:46:14 +0000 (+0100) Subject: Merge patch series "some pipe + wait stuff" X-Git-Tag: io_uring-6.15-20250403~173^2~2 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=3d5b9f3702f16e683047d0647117a5a297d1e284;p=linux-block.git Merge patch series "some pipe + wait stuff" Mateusz Guzik says: As a side effect of looking at the pipe hang I came up with 3 changes to consider for -next. The first one is a trivial clean up which I wont mind if it merely gets folded into someone else's change for pipes. The second one reduces page alloc/free calls for the backing area (60% less during a kernel build in my testing). I already posted this, but the cc list was not proper. The last one concerns the wait/wakeup mechanism and drops one lock trip in the common case after waking up. * patches from https://lore.kernel.org/r/20250303230409.452687-1-mjguzik@gmail.com: wait: avoid spurious calls to prepare_to_wait_event() in ___wait_event() pipe: cache 2 pages instead of 1 pipe: drop an always true check in anon_pipe_write() Link: https://lore.kernel.org/r/20250303230409.452687-1-mjguzik@gmail.com Signed-off-by: Christian Brauner --- 3d5b9f3702f16e683047d0647117a5a297d1e284