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io_uring/rsrc: add lockdep checks

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

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/961bbe6e433ec9bc0375127f23468b37b729df99.1681210788.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2023-04-11 12:06:04 +01:00 committed by Jens Axboe
parent 8ce4269eee
commit 786788a8cf
1 changed files with 2 additions and 0 deletions
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2
io_uring/rsrc.c
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@ -534,6 +534,8 @@ static int __io_register_rsrc_update(struct io_ring_ctx *ctx, unsigned type,
__u32 tmp; __u32 tmp;
int err; int err;
lockdep_assert_held(&ctx->uring_lock);
if (check_add_overflow(up->offset, nr_args, &tmp)) if (check_add_overflow(up->offset, nr_args, &tmp))
return -EOVERFLOW; return -EOVERFLOW;
err = io_rsrc_node_switch_start(ctx); err = io_rsrc_node_switch_start(ctx);