diff options
Diffstat (limited to 'fs/befs/super.c')
| -rw-r--r-- | fs/befs/super.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/fs/befs/super.c b/fs/befs/super.c index aeafc4d84278..7c50025c99d8 100644 --- a/fs/befs/super.c +++ b/fs/befs/super.c @@ -13,24 +13,20 @@ #include "befs.h" #include "super.h" -/** - * load_befs_sb -- Read from disk and properly byteswap all the fields +/* + * befs_load_sb -- Read from disk and properly byteswap all the fields * of the befs superblock - * - * - * - * */ int -befs_load_sb(struct super_block *sb, befs_super_block * disk_sb) +befs_load_sb(struct super_block *sb, befs_super_block *disk_sb) { struct befs_sb_info *befs_sb = BEFS_SB(sb); /* Check the byte order of the filesystem */ if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE) - befs_sb->byte_order = BEFS_BYTESEX_LE; + befs_sb->byte_order = BEFS_BYTESEX_LE; else if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_BE) - befs_sb->byte_order = BEFS_BYTESEX_BE; + befs_sb->byte_order = BEFS_BYTESEX_BE; befs_sb->magic1 = fs32_to_cpu(sb, disk_sb->magic1); befs_sb->magic2 = fs32_to_cpu(sb, disk_sb->magic2); @@ -45,6 +41,8 @@ befs_load_sb(struct super_block *sb, befs_super_block * disk_sb) befs_sb->ag_shift = fs32_to_cpu(sb, disk_sb->ag_shift); befs_sb->num_ags = fs32_to_cpu(sb, disk_sb->num_ags); + befs_sb->flags = fs32_to_cpu(sb, disk_sb->flags); + befs_sb->log_blocks = fsrun_to_cpu(sb, disk_sb->log_blocks); befs_sb->log_start = fs64_to_cpu(sb, disk_sb->log_start); befs_sb->log_end = fs64_to_cpu(sb, disk_sb->log_end); @@ -84,15 +82,15 @@ befs_check_sb(struct super_block *sb) } if (befs_sb->block_size > PAGE_SIZE) { - befs_error(sb, "blocksize(%u) cannot be larger" + befs_error(sb, "blocksize(%u) cannot be larger " "than system pagesize(%lu)", befs_sb->block_size, PAGE_SIZE); return BEFS_ERR; } /* - * block_shift and block_size encode the same information - * in different ways as a consistency check. + * block_shift and block_size encode the same information + * in different ways as a consistency check. */ if ((1 << befs_sb->block_shift) != befs_sb->block_size) { @@ -101,10 +99,18 @@ befs_check_sb(struct super_block *sb) return BEFS_ERR; } - if (befs_sb->log_start != befs_sb->log_end) { + + /* ag_shift also encodes the same information as blocks_per_ag in a + * different way, non-fatal consistency check + */ + if ((1 << befs_sb->ag_shift) != befs_sb->blocks_per_ag) + befs_error(sb, "ag_shift disagrees with blocks_per_ag."); + + if (befs_sb->log_start != befs_sb->log_end || + befs_sb->flags == BEFS_DIRTY) { befs_error(sb, "Filesystem not clean! There are blocks in the " - "journal. You must boot into BeOS and mount this volume " - "to make it clean."); + "journal. You must boot into BeOS and mount this " + "volume to make it clean."); return BEFS_ERR; } |