From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: hch@infradead.org, darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Damien.LeMoal@wdc.com, Christoph Hellwig <hch@lst.de>,
agruenba@redhat.com
Subject: [PATCH 4/6] iomap: warn on inline maps in iomap_writepage_map
Date: Mon, 29 Jul 2019 18:18:05 -0700 [thread overview]
Message-ID: <156444948583.2682261.16607334257055353357.stgit@magnolia> (raw)
In-Reply-To: <156444945993.2682261.3926017251626679029.stgit@magnolia>
From: Christoph Hellwig <hch@lst.de>
And inline mapping should never mark the page dirty and thus never end up
in writepages. Add a check for that condition and warn if it happens.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/iomap/buffered-io.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 21b50e8cb9f2..ed694a59c527 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -1405,6 +1405,8 @@ iomap_writepage_map(struct iomap_writepage_ctx *wpc,
error = wpc->ops->map_blocks(wpc, inode, file_offset);
if (error)
break;
+ if (WARN_ON_ONCE(wpc->iomap.type == IOMAP_INLINE))
+ continue;
if (wpc->iomap.type == IOMAP_HOLE)
continue;
iomap_add_to_ioend(inode, file_offset, page, iop, wpc, wbc,
next prev parent reply other threads:[~2019-07-30 1:18 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-30 1:17 [PATCH v4 0/6] iomap: lift the xfs writepage code into iomap Darrick J. Wong
2019-07-30 1:17 ` [PATCH 1/6] list.h: add list_pop and list_pop_entry helpers Darrick J. Wong
2019-07-30 1:17 ` [PATCH 2/6] iomap: copy the xfs writeback code to iomap.c Darrick J. Wong
2019-08-04 14:59 ` Andreas Gruenbacher
2019-08-06 5:33 ` Christoph Hellwig
2019-08-05 12:31 ` Andreas Gruenbacher
2019-08-06 5:32 ` Christoph Hellwig
2019-07-30 1:17 ` [PATCH 3/6] iomap: add tracing for the address space operations Darrick J. Wong
2019-07-30 1:18 ` Darrick J. Wong [this message]
2019-07-30 1:18 ` [PATCH 5/6] xfs: set IOMAP_F_NEW more carefully Darrick J. Wong
2019-07-30 1:18 ` [PATCH 6/6] iomap: zero newly allocated mapped blocks Darrick J. Wong
2019-07-30 14:48 ` [PATCH v4 0/6] iomap: lift the xfs writepage code into iomap Christoph Hellwig
2019-08-05 12:34 ` Andreas Gruenbacher
2019-08-16 6:52 ` Christoph Hellwig
2019-08-17 1:46 ` Darrick J. Wong
2019-08-17 8:25 ` Andreas Gruenbacher
2019-08-17 13:15 ` Damien Le Moal
2019-08-20 7:30 ` Christoph Hellwig
2019-09-01 7:34 ` Christoph Hellwig
2019-09-01 20:44 ` Darrick J. Wong
2019-09-02 17:16 ` Christoph Hellwig
2019-09-10 7:01 ` Christoph Hellwig
2019-09-10 21:30 ` Dave Chinner
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