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From: Song Liu <song@kernel.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>, Jaegeuk Kim <jaegeuk@kernel.org>,
	Chao Yu <chao@kernel.org>,
	Philipp Reisner <philipp.reisner@linbit.com>,
	Lars Ellenberg <lars.ellenberg@linbit.com>,
	Coly Li <colyli@suse.de>, Mike Snitzer <snitzer@redhat.com>,
	Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>,
	Damien Le Moal <damien.lemoal@wdc.com>,
	Naohiro Aota <naohiro.aota@wdc.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ryusuke Konishi <konishi.ryusuke@gmail.com>,
	linux-nilfs@vger.kernel.org, dm-devel@redhat.com,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-block@vger.kernel.org, drbd-dev@lists.linbit.com,
	linux-bcache@vger.kernel.org,
	linux-raid <linux-raid@vger.kernel.org>,
	Linux-Fsdevel <linux-fsdevel@vger.kernel.org>,
	linux-btrfs@vger.kernel.org, linux-nfs@vger.kernel.org,
	Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCH 13/17] md: remove md_bio_alloc_sync
Date: Tue, 26 Jan 2021 23:22:46 -0800
Message-ID: <CAPhsuW4AViTNjq1mp6zvbEJ8zKdK7__BfXEsvATTBWraK2u1Jg@mail.gmail.com> (raw)
In-Reply-To: <20210126145247.1964410-14-hch@lst.de>

On Tue, Jan 26, 2021 at 7:17 AM Christoph Hellwig <hch@lst.de> wrote:
>
> md_bio_alloc_sync is never called with a NULL mddev, and ->sync_set is
> initialized in md_run, so it always must be initialized as well.  Just
> open code the remaining call to bio_alloc_bioset.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Song Liu <song@kernel.org>

> ---
>  drivers/md/md.c | 10 +---------
>  1 file changed, 1 insertion(+), 9 deletions(-)
>
> diff --git a/drivers/md/md.c b/drivers/md/md.c
> index 6a27f52007c871..399c81bddc1ae1 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -340,14 +340,6 @@ static int start_readonly;
>   */
>  static bool create_on_open = true;
>
> -static struct bio *md_bio_alloc_sync(struct mddev *mddev)
> -{
> -       if (!mddev || !bioset_initialized(&mddev->sync_set))
> -               return bio_alloc(GFP_NOIO, 1);
> -
> -       return bio_alloc_bioset(GFP_NOIO, 1, &mddev->sync_set);
> -}
> -
>  /*
>   * We have a system wide 'event count' that is incremented
>   * on any 'interesting' event, and readers of /proc/mdstat
> @@ -989,7 +981,7 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
>         if (test_bit(Faulty, &rdev->flags))
>                 return;
>
> -       bio = md_bio_alloc_sync(mddev);
> +       bio = bio_alloc_bioset(GFP_NOIO, 1, &mddev->sync_set);
>
>         atomic_inc(&rdev->nr_pending);
>
> --
> 2.29.2
>

  reply index

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26 14:52 misc bio allocation cleanups Christoph Hellwig
2021-01-26 14:52 ` [PATCH 01/17] zonefs: use bio_alloc in zonefs_file_dio_append Christoph Hellwig
2021-01-26 15:08   ` Johannes Thumshirn
2021-01-26 19:09   ` Chaitanya Kulkarni
2021-01-26 23:23   ` [dm-devel] " Damien Le Moal
2021-01-26 14:52 ` [PATCH 02/17] btrfs: use bio_kmalloc in __alloc_device Christoph Hellwig
2021-01-26 15:01   ` Josef Bacik
2021-01-26 19:11   ` Chaitanya Kulkarni
2021-01-26 14:52 ` [PATCH 03/17] blk-crypto: use bio_kmalloc in blk_crypto_clone_bio Christoph Hellwig
2021-01-26 21:51   ` Eric Biggers
2021-01-26 14:52 ` [PATCH 04/17] block: split bio_kmalloc from bio_alloc_bioset Christoph Hellwig
2021-01-30  3:56   ` Matthew Wilcox
2021-02-01 12:22     ` Christoph Hellwig
2021-01-26 14:52 ` [PATCH 05/17] block: use an on-stack bio in blkdev_issue_flush Christoph Hellwig
2021-01-26 19:15   ` Chaitanya Kulkarni
2021-01-26 14:52 ` [PATCH 06/17] dm-clone: use blkdev_issue_flush in commit_metadata Christoph Hellwig
2021-01-26 14:52 ` [PATCH 07/17] f2fs: use blkdev_issue_flush in __submit_flush_wait Christoph Hellwig
2021-01-29  1:03   ` [f2fs-dev] " Chao Yu
2021-01-26 14:52 ` [PATCH 08/17] f2fs: remove FAULT_ALLOC_BIO Christoph Hellwig
2021-01-28 16:11   ` Jaegeuk Kim
2021-01-29  1:04   ` [f2fs-dev] " Chao Yu
2021-01-26 14:52 ` [PATCH 09/17] drbd: remove bio_alloc_drbd Christoph Hellwig
2021-01-26 14:52 ` [PATCH 10/17] drbd: remove drbd_req_make_private_bio Christoph Hellwig
2021-01-26 14:52 ` [PATCH 11/17] md: remove bio_alloc_mddev Christoph Hellwig
2021-01-27  7:21   ` Song Liu
2021-01-26 14:52 ` [PATCH 12/17] md: simplify sync_page_io Christoph Hellwig
2021-01-27  7:22   ` Song Liu
2021-01-26 14:52 ` [PATCH 13/17] md: remove md_bio_alloc_sync Christoph Hellwig
2021-01-27  7:22   ` Song Liu [this message]
2021-01-26 14:52 ` [PATCH 14/17] md/raid6: refactor raid5_read_one_chunk Christoph Hellwig
2021-01-27  7:15   ` Song Liu
2021-01-26 14:52 ` [PATCH 15/17] nfs/blocklayout: remove cruft in bl_alloc_init_bio Christoph Hellwig
2021-01-26 14:52 ` [PATCH 16/17] nilfs2: remove cruft in nilfs_alloc_seg_bio Christoph Hellwig
2021-01-26 19:17   ` Chaitanya Kulkarni
2021-01-26 14:52 ` [PATCH 17/17] mm: remove get_swap_bio Christoph Hellwig
2021-01-27 16:52 ` misc bio allocation cleanups Jens Axboe
2021-02-01  1:16 ` Guoqing Jiang

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