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-rw-r--r--fs/befs/super.c36
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;
}