io_uring: change io_ring_ctx bool fields into bit fields

In preparation for adding another one, which would make us spill into
another long (and hence bump the size of the ctx), change them to
bit fields.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 2c03697..42bf83b 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -202,10 +202,10 @@ struct io_ring_ctx {
 
        struct {
                unsigned int            flags;
-               bool                    compat;
-               bool                    account_mem;
-               bool                    cq_overflow_flushed;
-               bool                    drain_next;
+               int                     compat: 1;
+               int                     account_mem: 1;
+               int                     cq_overflow_flushed: 1;
+               int                     drain_next: 1;
 
                /*
                 * Ring buffer of indices into array of io_uring_sqe, which is
@@ -994,7 +994,7 @@ static bool io_cqring_overflow_flush(struct io_ring_ctx *ctx, bool force)
 
        /* if force is set, the ring is going away. always drop after that */
        if (force)
-               ctx->cq_overflow_flushed = true;
+               ctx->cq_overflow_flushed = 1;
 
        cqe = NULL;
        while (!list_empty(&ctx->cq_overflow_list)) {
@@ -4489,9 +4489,9 @@ static void io_queue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 
        if (unlikely(req->ctx->drain_next)) {
                req->flags |= REQ_F_IO_DRAIN;
-               req->ctx->drain_next = false;
+               req->ctx->drain_next = 0;
        }
-       req->ctx->drain_next = (req->flags & REQ_F_DRAIN_LINK);
+       req->ctx->drain_next = (req->flags & REQ_F_DRAIN_LINK) != 0;
 
        ret = io_req_defer(req, sqe);
        if (ret) {