Commit 786788a8 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/rsrc: add lockdep checks 



Add a lockdep chek to make sure that file and buffer updates hold
->uring_lock.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/961bbe6e433ec9bc0375127f23468b37b729df99.1681210788.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 8ce4269e

io_uring/rsrc.c

+2 −0
Original line number Diff line number Diff line
@@ -534,6 +534,8 @@ static int __io_register_rsrc_update(struct io_ring_ctx *ctx, unsigned type, 
	__u32 tmp;

	int err;



	lockdep_assert_held(&ctx->uring_lock);



	if (check_add_overflow(up->offset, nr_args, &tmp))

		return -EOVERFLOW;

	err = io_rsrc_node_switch_start(ctx);