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/openbmc/qemu/hw/9pfs/ |
H A D | 9p.c | 8d6cb100 Fri Jul 02 10:16:32 CDT 2021 Christian Schoenebeck <qemu_oss@crudebyte.com> 9pfs: reduce latency of Twalk As with previous performance optimization on Treaddir handling; reduce the overall latency, i.e. overall time spent on processing a Twalk request by reducing the amount of thread hops between the 9p server's main thread and fs worker thread(s). In fact this patch even reduces the thread hops for Twalk handling to its theoritical minimum of exactly 2 thread hops: main thread -> fs worker thread -> main thread This is achieved by doing all the required fs driver tasks altogether in a single v9fs_co_run_in_worker({ ... }); code block. Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com> Reviewed-by: Greg Kurz <groug@kaod.org> Message-Id: <1a6701674afc4f08d40396e3aa2631e18a4dbb33.1622821729.git.qemu_oss@crudebyte.com>
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