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virtio_fs: Remove redundant spinlock in virtio_fs_request_complete()

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Since clear_bit is an atomic operation, the spinlock is redundant and
can be removed, reducing lock contention is good for performance.

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Li RongQing
2025-06-15 21:20:39 +08:00
committed by Miklos Szeredi
parent 6fd26f5085
commit b4da63cea1
1 changed files with 0 additions and 3 deletions
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3
fs/fuse/virtio_fs.c
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@@ -761,7 +761,6 @@ static void copy_args_from_argbuf(struct fuse_args *args, struct fuse_req *req)
static void virtio_fs_request_complete(struct fuse_req *req,
struct virtio_fs_vq *fsvq)
{
struct fuse_pqueue *fpq = &fsvq->fud->pq;
struct fuse_args *args;
struct fuse_args_pages *ap;
unsigned int len, i, thislen;
@@ -790,9 +789,7 @@ static void virtio_fs_request_complete(struct fuse_req *req,
}
}
spin_lock(&fpq->lock);
clear_bit(FR_SENT, &req->flags);
spin_unlock(&fpq->lock);
fuse_request_end(req);
spin_lock(&fsvq->lock);