diff options
Diffstat (limited to 'ext2fs/hyper.c')
| -rw-r--r-- | ext2fs/hyper.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/ext2fs/hyper.c b/ext2fs/hyper.c index 293574a6..22864bbb 100644 --- a/ext2fs/hyper.c +++ b/ext2fs/hyper.c @@ -107,7 +107,7 @@ get_hypermetadata (void) sblock->s_blocks_count << log2_dev_blocks_per_fs_block); /* Set these handy variables. */ - inodes_per_block = block_size / sizeof (struct ext2_inode); + inodes_per_block = block_size / EXT2_INODE_SIZE (sblock); frag_size = EXT2_MIN_FRAG_SIZE << sblock->s_log_frag_size; if (frag_size) @@ -115,6 +115,23 @@ get_hypermetadata (void) else ext2_panic ("frag size is zero!"); + if (sblock->s_rev_level > EXT2_GOOD_OLD_REV) + { + if (sblock->s_feature_incompat & ~EXT2_FEATURE_INCOMPAT_SUPP) + ext2_panic ("could not mount because of unsupported optional features" + " (0x%x)", + sblock->s_feature_incompat & ~EXT2_FEATURE_INCOMPAT_SUPP); + if (sblock->s_feature_ro_compat & ~EXT2_FEATURE_RO_COMPAT_SUPP) + { + ext2_warning ("mounted readonly because of" + " unsupported optional features (0x%x)", + sblock->s_feature_ro_compat & ~EXT2_FEATURE_RO_COMPAT_SUPP); + diskfs_readonly = 1; + } + if (sblock->s_inode_size != EXT2_GOOD_OLD_INODE_SIZE) + ext2_panic ("inode size %d isn't supported", sblock->s_inode_size); + } + groups_count = ((sblock->s_blocks_count - sblock->s_first_data_block + sblock->s_blocks_per_group - 1) |