From: Christoph Hellwig <hch@infradead.org>
To: Christopher Unkel <cunkel@drivescale.com>
Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org,
Song Liu <song@kernel.org>
Subject: Re: [PATCH 1/3] md: align superblock writes to physical blocks
Date: Fri, 23 Oct 2020 09:29:27 +0100 [thread overview]
Message-ID: <20201023082927.GA15144@infradead.org> (raw)
In-Reply-To: <20201023033130.11354-2-cunkel@drivescale.com>
> + /* Respect physical block size if feasible. */
> + bmask = queue_physical_block_size(rdev->bdev->bd_disk->queue)-1;
> + if (!((rdev->sb_start * 512) & bmask) && (rdev->sb_size & bmask)) {
> + int candidate_size = (rdev->sb_size | bmask) + 1;
> +
> + if (minor_version) {
> + int sectors = candidate_size / 512;
> +
> + if (rdev->data_offset >= sb_start + sectors
> + && rdev->new_data_offset >= sb_start + sectors)
Linux coding style wants operators before the continuing line.
> + rdev->sb_size = candidate_size;
> + } else if (bmask <= 4095)
> + rdev->sb_size = candidate_size;
> + }
I also think this code would benefit from being factored into a helper.
next prev parent reply other threads:[~2020-10-23 8:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-23 3:31 [PATCH 0/3] mdraid sb and bitmap write alignment on 512e drives Christopher Unkel
2020-10-23 3:31 ` [PATCH 1/3] md: align superblock writes to physical blocks Christopher Unkel
2020-10-23 5:46 ` Song Liu
2020-10-23 8:29 ` Christoph Hellwig [this message]
2020-10-23 3:31 ` [PATCH 2/3] md: factor sb write alignment check into function Christopher Unkel
2020-10-23 3:31 ` [PATCH 3/3] md: pad writes to end of bitmap to physical blocks Christopher Unkel
2020-10-23 5:41 ` [PATCH 0/3] mdraid sb and bitmap write alignment on 512e drives Song Liu
2020-10-23 7:03 ` Chris Unkel
2020-11-02 7:04 ` Xiao Ni
2020-11-02 18:59 ` Chris Unkel
2020-11-03 8:32 ` Xiao Ni
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