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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2009-01-05 22:20:24 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-01-05 22:20:24 -0500
commit560671a0d3c9ad2d647fa6d09375a262e1f19c4f (patch)
treea52673326726062d53b35643d51a16739cd804fc /fs/ext4/mballoc.c
parente8134b27e351e813414da3b95aa8eac6d3908088 (diff)
ext4: Use high 16 bits of the block group descriptor's free counts fields
Rename the lower bits with suffix _lo and add helper to access the values. Also rename bg_itable_unused_hi to bg_pad as in e2fsprogs. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.c')
-rw-r--r--fs/ext4/mballoc.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d559a03f3eb..3809a9348f2 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2515,7 +2515,7 @@ int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
ext4_free_blocks_after_init(sb, group, desc);
} else {
meta_group_info[i]->bb_free =
- le16_to_cpu(desc->bg_free_blocks_count);
+ ext4_free_blks_count(sb, desc);
}
INIT_LIST_HEAD(&meta_group_info[i]->bb_prealloc_list);
@@ -3046,12 +3046,12 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
ac->ac_b_ex.fe_start, ac->ac_b_ex.fe_len);
if (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT);
- gdp->bg_free_blocks_count =
- cpu_to_le16(ext4_free_blocks_after_init(sb,
- ac->ac_b_ex.fe_group,
- gdp));
+ ext4_free_blks_set(sb, gdp,
+ ext4_free_blocks_after_init(sb,
+ ac->ac_b_ex.fe_group, gdp));
}
- le16_add_cpu(&gdp->bg_free_blocks_count, -ac->ac_b_ex.fe_len);
+ len = ext4_free_blks_count(sb, gdp) - ac->ac_b_ex.fe_len;
+ ext4_free_blks_set(sb, gdp, len);
gdp->bg_checksum = ext4_group_desc_csum(sbi, ac->ac_b_ex.fe_group, gdp);
spin_unlock(sb_bgl_lock(sbi, ac->ac_b_ex.fe_group));
percpu_counter_sub(&sbi->s_freeblocks_counter, ac->ac_b_ex.fe_len);
@@ -4823,7 +4823,8 @@ do_more:
}
spin_lock(sb_bgl_lock(sbi, block_group));
- le16_add_cpu(&gdp->bg_free_blocks_count, count);
+ ret = ext4_free_blks_count(sb, gdp) + count;
+ ext4_free_blks_set(sb, gdp, ret);
gdp->bg_checksum = ext4_group_desc_csum(sbi, block_group, gdp);
spin_unlock(sb_bgl_lock(sbi, block_group));
percpu_counter_add(&sbi->s_freeblocks_counter, count);