From: Jens Axboe <[email protected]>
To: Pavel Begunkov <[email protected]>, [email protected]
Subject: Re: [PATCH 1/3] io_uring: simplify io_mem_alloc return values
Date: Wed, 13 Mar 2024 14:50:38 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <ba1f5a30be45eec6cf73cfdbf4b4e1679a03cef8.1710343154.git.asml.silence@gmail.com>
On 3/13/24 9:52 AM, Pavel Begunkov wrote:
> io_mem_alloc() returns a pointer on success and a pointer-encoded error
> otherwise. However, it can only fail with -ENOMEM, just return NULL on
> failure. PTR_ERR is usually pretty error prone.
I take that back, this is buggy - the io_rings_map() and friends return
an error pointer. So better to keep it consistent. Dropped this one.
--
Jens Axboe
next prev parent reply other threads:[~2024-03-13 20:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-13 15:52 [PATCH 0/3] small rings clean up Pavel Begunkov
2024-03-13 15:52 ` [PATCH 1/3] io_uring: simplify io_mem_alloc return values Pavel Begunkov
2024-03-13 20:50 ` Jens Axboe [this message]
2024-03-13 20:43 ` Pavel Begunkov
2024-03-13 21:02 ` Jens Axboe
2024-03-13 22:32 ` Gabriel Krisman Bertazi
2024-03-13 23:24 ` Jens Axboe
2024-03-13 23:43 ` Gabriel Krisman Bertazi
2024-03-13 23:44 ` Jens Axboe
2024-03-13 15:52 ` [PATCH 2/3] io_uring: simplify io_pages_free Pavel Begunkov
2024-03-13 15:52 ` [PATCH 3/3] io_uring/kbuf: rename is_mapped Pavel Begunkov
2024-03-13 20:27 ` [PATCH 0/3] small rings clean up Jens Axboe
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