[PATCH 22/54] debugfs: Print htree internal node checksums
From: Darrick J. Wong <hidden>
Date: 2012-03-07 00:00:35
Subsystem:
the rest · Maintainer:
Linus Torvalds
Print htree node checksums when dumping a directory index. Signed-off-by: Darrick J. Wong <redacted> --- debugfs/htree.c | 17 ++++++++++++++++- 1 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/debugfs/htree.c b/debugfs/htree.c
index 05745eb..2fb804e 100644
--- a/debugfs/htree.c
+++ b/debugfs/htree.c@@ -120,8 +120,9 @@ static void htree_dump_int_node(ext2_filsys fs, ext2_ino_t ino, { struct ext2_dx_countlimit limit; struct ext2_dx_entry e; + struct ext2_dx_tail *tail; int hash, i; - + int remainder; limit = *((struct ext2_dx_countlimit *) ent); limit.count = ext2fs_le16_to_cpu(limit.count);
@@ -130,6 +131,20 @@ static void htree_dump_int_node(ext2_filsys fs, ext2_ino_t ino, fprintf(pager, "Number of entries (count): %d\n", limit.count); fprintf(pager, "Number of entries (limit): %d\n", limit.limit); + remainder = fs->blocksize - (limit.limit * + sizeof(struct ext2_dx_entry)); + if (ent == (struct ext2_dx_entry *)(rootnode + 1)) + remainder -= sizeof(struct ext2_dx_root_info) + 24; + else + remainder -= 8; + if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, + EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) && + remainder == sizeof(struct ext2_dx_tail)) { + tail = (struct ext2_dx_tail *)(ent + limit.limit); + fprintf(pager, "Checksum: 0x%08x\n", + ext2fs_le32_to_cpu(tail->dt_checksum)); + } + for (i=0; i < limit.count; i++) { hash = i ? ext2fs_le32_to_cpu(ent[i].hash) : 0; fprintf(pager, "Entry #%d: Hash 0x%08x%s, block %u\n", i,