shmem_read_mapping_page_gfp always returns an uptodate page or an
ERR_PTR. Remove the code that tries to handle a non-uptodate page.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
goto advance;
}
- if (PageUptodate(page)) {
- /*
- * xfile pages must never be mapped into userspace, so
- * we skip the dcache flush.
- */
- kaddr = kmap_local_page(page);
- p = kaddr + offset_in_page(pos);
- memcpy(buf, p, len);
- kunmap_local(kaddr);
- } else {
- memset(buf, 0, len);
- }
+ /*
+ * xfile pages must never be mapped into userspace, so
+ * we skip the dcache flush.
+ */
+ kaddr = kmap_local_page(page);
+ p = kaddr + offset_in_page(pos);
+ memcpy(buf, p, len);
+ kunmap_local(kaddr);
put_page(page);
advance: