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iomap: Remove large folio handling in iomap_invalidate_folio()
[ Upstream commit a221ab7 ] We do not need to release the iomap_page in iomap_invalidate_folio() to allow the folio to be split. The splitting code will call ->release_folio() if there is still per-fs private data attached to the folio. At that point, we will check if the folio is still dirty and decline to release the iomap_page. It is possible to trigger the warning in perfectly legitimate circumstances (eg if a disk read fails, we do a partial write to the folio, then we truncate the folio), which will cause those writes to be lost. Fixes: 60d8231 ("iomap: Support large folios in invalidatepage") Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
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