Btrfs: Make sure bio pages are adjacent during bulk csumming (2e1a992e) · Commits · e / devices / android_kernel_teracube_mt6765

fs/btrfs/file-item.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -161,7 +161,6 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
		unsigned long map_len;
		unsigned long map_start;


		path = btrfs_alloc_path();
		BUG_ON(!path);
		again:
		@@ -315,9 +314,12 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
		if (bio_index < bio->bi_vcnt) {
		item = (struct btrfs_csum_item )((char )item +
		BTRFS_CRC32_SIZE);
		if (item < item_end)
		if (item < item_end && offset + PAGE_CACHE_SIZE ==
		page_offset(bvec->bv_page)) {
		offset = page_offset(bvec->bv_page);
		goto next_bvec;
		}
		}
		if (eb_token) {
		unmap_extent_buffer(leaf, eb_token, KM_IRQ1);
		eb_token = NULL;