From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: xfs <linux-xfs@vger.kernel.org>
Subject: Re: [PATCH] xfs: only set IOMAP_F_SHARED when providing a srcmap to a write
Date: Tue, 24 Aug 2021 08:32:59 +0100 [thread overview]
Message-ID: <YSSgq3RE5kB+TC7b@infradead.org> (raw)
In-Reply-To: <20210824003739.GC12640@magnolia>
This looks fine. But the cmap flag somehow tripped me up, and while
looking for a better name I just came up with the variant below that
avoids the need for the local variable entirely. Either version is
fine with me:
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index d8cd2583dedbf..66f138437b425 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -1064,11 +1064,11 @@ xfs_buffered_write_iomap_begin(
error = xfs_bmbt_to_iomap(ip, srcmap, &imap, 0);
if (error)
return error;
- } else {
- xfs_trim_extent(&cmap, offset_fsb,
- imap.br_startoff - offset_fsb);
+ return xfs_bmbt_to_iomap(ip, iomap, &cmap, IOMAP_F_SHARED);
}
- return xfs_bmbt_to_iomap(ip, iomap, &cmap, IOMAP_F_SHARED);
+
+ xfs_trim_extent(&cmap, offset_fsb, imap.br_startoff - offset_fsb);
+ return xfs_bmbt_to_iomap(ip, iomap, &cmap, 0);
out_unlock:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
next prev parent reply other threads:[~2021-08-24 7:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-24 0:37 [PATCH] xfs: only set IOMAP_F_SHARED when providing a srcmap to a write Darrick J. Wong
2021-08-24 0:38 ` [RFC PATCH] generic: regression test for a FALLOC_FL_UNSHARE bug in XFS Darrick J. Wong
2021-08-24 7:35 ` Christoph Hellwig
2021-08-24 9:33 ` Zorro Lang
2021-08-24 15:17 ` Darrick J. Wong
2021-08-24 7:32 ` Christoph Hellwig [this message]
2021-08-24 11:03 ` [PATCH] xfs: only set IOMAP_F_SHARED when providing a srcmap to a write Chandan Babu R
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