From: Jens Axboe <[email protected]>
To: John Garry <[email protected]>,
[email protected], [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected], [email protected],
[email protected], [email protected]
Cc: [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
Prasad Singamsetty <[email protected]>
Subject: Re: [PATCH v5 03/10] fs: Initial atomic write support
Date: Fri, 8 Mar 2024 10:05:04 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 3/8/24 9:52 AM, John Garry wrote:
> On 08/03/2024 16:34, Jens Axboe wrote:
>> On 2/26/24 10:36 AM, John Garry wrote:
>>> diff --git a/io_uring/rw.c b/io_uring/rw.c
>>> index d5e79d9bdc71..099dda3ff151 100644
>>> --- a/io_uring/rw.c
>>> +++ b/io_uring/rw.c
>>> @@ -719,7 +719,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
>>> struct kiocb *kiocb = &rw->kiocb;
>>> struct io_ring_ctx *ctx = req->ctx;
>>> struct file *file = req->file;
>>> - int ret;
>>> + int ret, rw_type = (mode == FMODE_WRITE) ? WRITE : READ;
>>> if (unlikely(!file || !(file->f_mode & mode)))
>>> return -EBADF;
>>> @@ -728,7 +728,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
>>> req->flags |= io_file_get_flags(file);
>>> kiocb->ki_flags = file->f_iocb_flags;
>>> - ret = kiocb_set_rw_flags(kiocb, rw->flags);
>>> + ret = kiocb_set_rw_flags(kiocb, rw->flags, rw_type);
>>> if (unlikely(ret))
>>> return ret;
>>> kiocb->ki_flags |= IOCB_ALLOC_CACHE;
>> Not sure why you took the lazy way out here rather than just pass it in,
>> now there's another branhc in the hot path. NAK.
>
> Are you saying to change io_rw_init_file() to this:
>
> io_rw_init_file(struct io_kiocb *req, fmode_t mode, int rw_type)
>
> And the callers can hardcode rw_type?
Yep, basically making the change identical to the aio one. Not sure why
you did it differently in those two spots.
--
Jens Axboe
next prev parent reply other threads:[~2024-03-08 17:05 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-26 17:36 [PATCH v5 00/10] block atomic writes John Garry
2024-02-26 17:36 ` [PATCH v5 01/10] block: Pass blk_queue_get_max_sectors() a request pointer John Garry
2024-02-26 17:36 ` [PATCH v5 02/10] block: Call blkdev_dio_unaligned() from blkdev_direct_IO() John Garry
2024-02-26 17:36 ` [PATCH v5 03/10] fs: Initial atomic write support John Garry
2024-03-08 16:34 ` Jens Axboe
2024-03-08 16:52 ` John Garry
2024-03-08 17:05 ` Jens Axboe [this message]
2024-03-08 17:15 ` John Garry
2024-03-08 17:18 ` Jens Axboe
2024-02-26 17:36 ` [PATCH v5 04/10] fs: Add initial atomic write support info to statx John Garry
2024-02-26 17:36 ` [PATCH v5 05/10] block: Add core atomic write support John Garry
2024-02-26 17:36 ` [PATCH v5 06/10] block: Add atomic write support for statx John Garry
2024-02-26 17:36 ` [PATCH v5 07/10] block: Add fops atomic write support John Garry
2024-02-26 17:36 ` [PATCH v5 08/10] scsi: sd: Atomic " John Garry
2024-02-26 17:36 ` [PATCH v5 09/10] scsi: scsi_debug: " John Garry
2024-02-26 17:36 ` [PATCH v5 10/10] nvme: " John Garry
2024-03-05 23:10 ` [PATCH v5 00/10] block atomic writes Matthew Wilcox
2024-03-06 9:05 ` John Garry
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