iomap: warn on inline maps in iomap_writepage_map
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: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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@ -1415,6 +1415,8 @@ iomap_writepage_map(struct iomap_writepage_ctx *wpc,
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error = wpc->ops->map_blocks(wpc, inode, file_offset);
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if (error)
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break;
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if (WARN_ON_ONCE(wpc->iomap.type == IOMAP_INLINE))
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continue;
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if (wpc->iomap.type == IOMAP_HOLE)
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continue;
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iomap_add_to_ioend(inode, file_offset, page, iop, wpc, wbc,
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