If iomap_unshare_actor() unshares to an inline iomap, the page was not being flushed. block_write_end() and __iomap_write_end() already contain flushes, so adding it to iomap_write_end_inline() seems like the best place. That means we can remove it from iomap_write_actor().
Signed-off-by: Matthew Wilcox (Oracle) <wi...@infradead.org> Reviewed-by: Dave Chinner <dchin...@redhat.com> Reviewed-by: Darrick J. Wong <darrick.w...@oracle.com> Reviewed-by: Christoph Hellwig <h...@lst.de> --- fs/iomap/buffered-io.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 897ab9a26a74..d81a9a86c5aa 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -717,6 +717,7 @@ iomap_write_end_inline(struct inode *inode, struct page *page, WARN_ON_ONCE(!PageUptodate(page)); BUG_ON(pos + copied > PAGE_SIZE - offset_in_page(iomap->inline_data)); + flush_dcache_page(page); addr = kmap_atomic(page); memcpy(iomap->inline_data + pos, addr + pos, copied); kunmap_atomic(addr); @@ -810,8 +811,6 @@ iomap_write_actor(struct inode *inode, loff_t pos, loff_t length, void *data, copied = iov_iter_copy_from_user_atomic(page, i, offset, bytes); - flush_dcache_page(page); - status = iomap_write_end(inode, pos, bytes, copied, page, iomap, srcmap); if (unlikely(status < 0)) -- 2.28.0