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[PATCH] ext4: switch fsblk to sector_t

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Redefine ext3 in-kernel filesystem block type (ext3_fsblk_t) from unsigned
long to sector_t, to allow kernel to handle  >32 bit ext3 blocks.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mingming Cao 2006-10-11 01:21:05 -07:00 • committed by Linus Torvalds
parent a86c618126
commit 3a5b2ecdd1
6 changed files with 57 additions and 30 deletions
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11
fs/ext4/ialloc.c
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@ -23,7 +23,7 @@
#include <linux/buffer_head.h>
#include <linux/random.h>
#include <linux/bitops.h>
#include <linux/blkdev.h>
#include <asm/byteorder.h>
#include "xattr.h"
@ -274,7 +274,8 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
freei = percpu_counter_read_positive(&sbi->s_freeinodes_counter);
avefreei = freei / ngroups;
freeb = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
avefreeb = freeb / ngroups;
avefreeb = freeb;
sector_div(avefreeb, ngroups);
ndirs = percpu_counter_read_positive(&sbi->s_dirs_counter);
if ((parent == sb->s_root->d_inode) ||
@ -303,13 +304,15 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
goto fallback;
}
blocks_per_dir = (le32_to_cpu(es->s_blocks_count) - freeb) / ndirs;
blocks_per_dir = le32_to_cpu(es->s_blocks_count) - freeb;
sector_div(blocks_per_dir, ndirs);
max_dirs = ndirs / ngroups + inodes_per_group / 16;
min_inodes = avefreei - inodes_per_group / 4;
min_blocks = avefreeb - EXT4_BLOCKS_PER_GROUP(sb) / 4;
max_debt = EXT4_BLOCKS_PER_GROUP(sb) / max(blocks_per_dir, (ext4_fsblk_t)BLOCK_COST);
max_debt = EXT4_BLOCKS_PER_GROUP(sb);
sector_div(max_debt, max(blocks_per_dir, (ext4_fsblk_t)BLOCK_COST));
if (max_debt * INODE_COST > inodes_per_group)
max_debt = inodes_per_group / INODE_COST;
if (max_debt > 255)