[PATCH 2/3] erofs-utils: fsck: cleanup erofs_verify_inode_data()

[Yue Hu]

From: Yue Hu <huyue2 at coolpad.com>

Diretly call {z_}erofs_read_{raw_}data_mapped() to avoid duplicated
code. Accordingly, fragment is supported as well after this change.

Signed-off-by: Yue Hu <huyue2 at coolpad.com>
---
 fsck/main.c | 57 +++++++++++------------------------------------------
 1 file changed, 11 insertions(+), 46 deletions(-)

diff --git a/fsck/main.c b/fsck/main.c
index 2a9c501..71abbdb 100644
--- a/fsck/main.c
+++ b/fsck/main.c
@@ -366,7 +366,6 @@ static int erofs_verify_inode_data(struct erofs_inode *inode, int outfd)
 	struct erofs_map_blocks map = {
 		.index = UINT_MAX,
 	};
-	struct erofs_map_dev mdev;
 	int ret = 0;
 	bool compressed;
 	erofs_off_t pos = 0;
@@ -427,54 +426,20 @@ static int erofs_verify_inode_data(struct erofs_inode *inode, int outfd)
 			BUG_ON(!raw);
 		}
 
-		mdev = (struct erofs_map_dev) {
-			.m_deviceid = map.m_deviceid,
-			.m_pa = map.m_pa,
-		};
-		ret = erofs_map_dev(&sbi, &mdev);
-		if (ret) {
-			erofs_err("failed to map device of m_pa %" PRIu64 ", m_deviceid %u @ nid %llu: %d",
-				  map.m_pa, map.m_deviceid, inode->nid | 0ULL,
-				  ret);
-			goto out;
-		}
-
-		if (compressed && map.m_llen > buffer_size) {
-			buffer_size = map.m_llen;
-			buffer = realloc(buffer, buffer_size);
-			BUG_ON(!buffer);
-		}
-
-		ret = dev_read(mdev.m_deviceid, raw, mdev.m_pa, map.m_plen);
-		if (ret < 0) {
-			erofs_err("failed to read data of m_pa %" PRIu64 ", m_plen %" PRIu64 " @ nid %llu: %d",
-				  mdev.m_pa, map.m_plen, inode->nid | 0ULL,
-				  ret);
-			goto out;
-		}
-
 		if (compressed) {
-			struct z_erofs_decompress_req rq = {
-				.in = raw,
-				.out = buffer,
-				.decodedskip = 0,
-				.interlaced_offset =
-					map.m_algorithmformat == Z_EROFS_COMPRESSION_INTERLACED ?
-						erofs_blkoff(map.m_la) : 0,
-				.inputsize = map.m_plen,
-				.decodedlength = map.m_llen,
-				.alg = map.m_algorithmformat,
-				.partial_decoding = 0
-			};
-
-			ret = z_erofs_decompress(&rq);
-			if (ret < 0) {
-				erofs_err("failed to decompress data of m_pa %" PRIu64 ", m_plen %" PRIu64 " @ nid %llu: %s",
-					  mdev.m_pa, map.m_plen,
-					  inode->nid | 0ULL, strerror(-ret));
-				goto out;
+			if (map.m_llen > buffer_size) {
+				buffer_size = map.m_llen;
+				buffer = realloc(buffer, buffer_size);
+				BUG_ON(!buffer);
 			}
+			ret = z_erofs_read_data_mapped(inode, &map, raw,
+						buffer, 0, map.m_llen, 0);
+		} else {
+			ret = erofs_read_raw_data_mapped(&map, raw, 0,
+							 map.m_plen);
 		}
+		if (ret)
+			goto out;
 
 		if (outfd >= 0 && write(outfd, compressed ? buffer : raw,
 					map.m_llen) < 0) {
-- 
2.17.1