Most of the performance improvements
with fuse-over-io-uring for synchronous requests is the possibility
to run processing on the submitting cpu core and to also wake
the submitting process on the same core - switching between
cpu cores.
Signed-off-by: Bernd Schubert <bschubert@xxxxxxx>
---
fs/fuse/dev.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index c7fd3849a105..851c5fa99946 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -333,7 +333,10 @@ void fuse_request_end(struct fuse_req *req)
spin_unlock(&fc->bg_lock);
} else {
/* Wake up waiter sleeping in request_wait_answer() */
- wake_up(&req->waitq);
+ if (fuse_per_core_queue(fc))
+ __wake_up_on_current_cpu(&req->waitq, TASK_NORMAL, NULL);
+ else
+ wake_up(&req->waitq);
}
if (test_bit(FR_ASYNC, &req->flags))
--
2.40.1
