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-rw-r--r--fs/ext4/ext4_common.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index 5f21dc7..2df4f8b 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -2233,13 +2233,23 @@ int ext4fs_mount(unsigned part_length)
goto fail;
}
- if (le32_to_cpu(data->sblock.revision_level) == 0)
+ if (le32_to_cpu(data->sblock.revision_level) == 0) {
fs->inodesz = 128;
- else
+ } else {
+ debug("EXT4 features COMPAT: %08x INCOMPAT: %08x RO_COMPAT: %08x\n",
+ __le32_to_cpu(data->sblock.feature_compatibility),
+ __le32_to_cpu(data->sblock.feature_incompat),
+ __le32_to_cpu(data->sblock.feature_ro_compat));
+
fs->inodesz = le16_to_cpu(data->sblock.inode_size);
+ fs->gdsize = le32_to_cpu(data->sblock.feature_incompat) &
+ EXT4_FEATURE_INCOMPAT_64BIT ?
+ le16_to_cpu(data->sblock.descriptor_size) : 32;
+ }
- debug("EXT2 rev %d, inode_size %d\n",
- le32_to_cpu(data->sblock.revision_level), fs->inodesz);
+ debug("EXT2 rev %d, inode_size %d, descriptor size %d\n",
+ le32_to_cpu(data->sblock.revision_level),
+ fs->inodesz, fs->gdsize);
data->diropen.data = data;
data->diropen.ino = 2;