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Message-ID: <ZlnSTAg15vWjc1Qm@infradead.org>
Date: Fri, 31 May 2024 06:36:12 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Zhang Yi <yi.zhang@...weicloud.com>
Cc: linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org, djwong@...nel.org, hch@...radead.org,
brauner@...nel.org, david@...morbit.com, chandanbabu@...nel.org,
jack@...e.cz, willy@...radead.org, yi.zhang@...wei.com,
chengzhihao1@...wei.com, yukuai3@...wei.com
Subject: Re: [RFC PATCH v4 6/8] xfs: correct the truncate blocksize of
realtime inode
On Wed, May 29, 2024 at 05:52:04PM +0800, Zhang Yi wrote:
> + if (xfs_inode_has_bigrtalloc(ip))
> + first_unmap_block = xfs_rtb_roundup_rtx(mp, first_unmap_block);
Given that first_unmap_block is a xfs_fileoff_t and not a xfs_rtblock_t,
this looks a bit confusing. I'd suggest to just open code the
arithmetics in xfs_rtb_roundup_rtx. For future proofing my also
use xfs_inode_alloc_unitsize() as in the hunk below instead of hard
coding the rtextsize. I.e.:
first_unmap_block = XFS_B_TO_FSB(mp,
roundup_64(new_size, xfs_inode_alloc_unitsize(ip)));
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