io_uring/zcrx: move RQ head/tail to separate cache lines

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RQ head and tail are currently put into the same cache line, which can
cause false sharing problems when refill is run on another CPU. Put them
into separate cache lines.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Link: https://patch.msgid.link/f769116a3f5267f06cb9a9a819d482ddea2e0852.1786108672.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Pavel Begunkov 2026-08-07 14:19:20 +01:00 • committed by Jens Axboe

parent 1afcef59fe

commit 433c57e9b1

3 changed files with 11 additions and 6 deletions

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2

io_uring/query.c

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8

io_uring/zcrx.c

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7

io_uring/zcrx.h

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