ext4: Convert s_blocks_count to s_blocks_count_lo

[linux-2.6-omap-h63xx.git] / fs / ext4 / super.c

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index dd4ff9c87358227b0b219ad29977896345b9c323..11e80f061cb2877160e44be69a4548c3b4618f66 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -70,31 +70,31 @@ static void ext4_write_super_lockfs(struct super_block *sb);
 ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
                               struct ext4_group_desc *bg)
 {
-       return le32_to_cpu(bg->bg_block_bitmap) |
+       return le32_to_cpu(bg->bg_block_bitmap_lo) |
                (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
-                (ext4_fsblk_t)le32_to_cpu(bg->bg_block_bitmap_hi) << 32 : 0);
+               (ext4_fsblk_t)le32_to_cpu(bg->bg_block_bitmap_hi) << 32 : 0);
 }
 
 ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb,
                               struct ext4_group_desc *bg)
 {
-       return le32_to_cpu(bg->bg_inode_bitmap) |
+       return le32_to_cpu(bg->bg_inode_bitmap_lo) |
                (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
-                (ext4_fsblk_t)le32_to_cpu(bg->bg_inode_bitmap_hi) << 32 : 0);
+               (ext4_fsblk_t)le32_to_cpu(bg->bg_inode_bitmap_hi) << 32 : 0);
 }
 
 ext4_fsblk_t ext4_inode_table(struct super_block *sb,
                              struct ext4_group_desc *bg)
 {
-       return le32_to_cpu(bg->bg_inode_table) |
+       return le32_to_cpu(bg->bg_inode_table_lo) |
                (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
-                (ext4_fsblk_t)le32_to_cpu(bg->bg_inode_table_hi) << 32 : 0);
+               (ext4_fsblk_t)le32_to_cpu(bg->bg_inode_table_hi) << 32 : 0);
 }
 
 void ext4_block_bitmap_set(struct super_block *sb,
                           struct ext4_group_desc *bg, ext4_fsblk_t blk)
 {
-       bg->bg_block_bitmap = cpu_to_le32((u32)blk);
+       bg->bg_block_bitmap_lo = cpu_to_le32((u32)blk);
        if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT)
                bg->bg_block_bitmap_hi = cpu_to_le32(blk >> 32);
 }
@@ -102,7 +102,7 @@ void ext4_block_bitmap_set(struct super_block *sb,
 void ext4_inode_bitmap_set(struct super_block *sb,
                           struct ext4_group_desc *bg, ext4_fsblk_t blk)
 {
-       bg->bg_inode_bitmap  = cpu_to_le32((u32)blk);
+       bg->bg_inode_bitmap_lo  = cpu_to_le32((u32)blk);
        if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT)
                bg->bg_inode_bitmap_hi = cpu_to_le32(blk >> 32);
 }
@@ -110,7 +110,7 @@ void ext4_inode_bitmap_set(struct super_block *sb,
 void ext4_inode_table_set(struct super_block *sb,
                          struct ext4_group_desc *bg, ext4_fsblk_t blk)
 {
-       bg->bg_inode_table = cpu_to_le32((u32)blk);
+       bg->bg_inode_table_lo = cpu_to_le32((u32)blk);
        if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT)
                bg->bg_inode_table_hi = cpu_to_le32(blk >> 32);
 }
@@ -1358,13 +1358,17 @@ static int ext4_check_descriptors (struct super_block * sb)
        ext4_fsblk_t inode_table;
        struct ext4_group_desc * gdp = NULL;
        int desc_block = 0;
+       int flexbg_flag = 0;
        int i;
 
+       if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG))
+               flexbg_flag = 1;
+
        ext4_debug ("Checking group descriptors");
 
        for (i = 0; i < sbi->s_groups_count; i++)
        {
-               if (i == sbi->s_groups_count - 1)
+               if (i == sbi->s_groups_count - 1 || flexbg_flag)
                        last_block = ext4_blocks_count(sbi->s_es) - 1;
                else
                        last_block = first_block +
@@ -1409,7 +1413,8 @@ static int ext4_check_descriptors (struct super_block * sb)
                                   le16_to_cpu(gdp->bg_checksum));
                        return 0;
                }
-               first_block += EXT4_BLOCKS_PER_GROUP(sb);
+               if (!flexbg_flag)
+                       first_block += EXT4_BLOCKS_PER_GROUP(sb);
                gdp = (struct ext4_group_desc *)
                        ((__u8 *)gdp + EXT4_DESC_SIZE(sb));
        }
@@ -2662,7 +2667,7 @@ static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
 
        if (test_opt(sb, MINIX_DF)) {
                sbi->s_overhead_last = 0;
-       } else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {
+       } else if (sbi->s_blocks_last != ext4_blocks_count(es)) {
                unsigned long ngroups = sbi->s_groups_count, i;
                ext4_fsblk_t overhead = 0;
                smp_rmb();
@@ -2697,7 +2702,7 @@ static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
                overhead += ngroups * (2 + sbi->s_itb_per_group);
                sbi->s_overhead_last = overhead;
                smp_wmb();
-               sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);
+               sbi->s_blocks_last = ext4_blocks_count(es);
        }
 
        buf->f_type = EXT4_SUPER_MAGIC;