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ext4: Change unsigned long to unsigned int

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Convert the unsigned longs that are most responsible for bloating the
stack usage on 64-bit systems.

Nearly all places in the ext3/4 code which uses "unsigned long" is
probably a bug, since on 32-bit systems a ulong a 32-bits, which means
we are wasting stack space on 64-bit systems.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o
2008-11-05 00:14:04 -05:00
parent a9df9a4910
commit 498e5f2415
9 changed files with 77 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
fs/ext4/balloc.c
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@@ -205,8 +205,8 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
ext4_group_t block_group,
struct buffer_head **bh)
{
unsigned long group_desc;
unsigned long offset;
unsigned int group_desc;
unsigned int offset;
struct ext4_group_desc *desc;
struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -225,7 +225,7 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
if (!sbi->s_group_desc[group_desc]) {
ext4_error(sb, "ext4_get_group_desc",
"Group descriptor not loaded - "
"block_group = %u, group_desc = %lu, desc = %lu",
"block_group = %u, group_desc = %u, desc = %u",
block_group, group_desc, offset);
return NULL;
}
@@ -372,8 +372,8 @@ void ext4_free_blocks_sb(handle_t *handle, struct super_block *sb,
struct buffer_head *gd_bh;
ext4_group_t block_group;
ext4_grpblk_t bit;
unsigned long i;
unsigned long overflow;
unsigned int i;
unsigned int overflow;
struct ext4_group_desc *desc;
struct ext4_super_block *es;
struct ext4_sb_info *sbi;
@@ -720,7 +720,7 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
#ifdef EXT4FS_DEBUG
struct ext4_super_block *es;
ext4_fsblk_t bitmap_count;
unsigned long x;
unsigned int x;
struct buffer_head *bitmap_bh = NULL;
es = EXT4_SB(sb)->s_es;
@@ -740,7 +740,7 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
continue;
x = ext4_count_free(bitmap_bh, sb->s_blocksize);
printk(KERN_DEBUG "group %lu: stored = %d, counted = %lu\n",
printk(KERN_DEBUG "group %lu: stored = %d, counted = %u\n",
i, le16_to_cpu(gdp->bg_free_blocks_count), x);
bitmap_count += x;
}