[PATCH] ext4: switch fsblk to sector_t
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>
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 5b2828d..c60bfed 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -36,7 +36,7 @@
le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
ext4_fsblk_t metaend = start + overhead;
struct buffer_head *bh = NULL;
- ext4_grpblk_t free_blocks_count;
+ ext4_grpblk_t free_blocks_count, offset;
int err = -EINVAL;
input->free_blocks_count = free_blocks_count =
@@ -49,13 +49,13 @@
"no-super", input->group, input->blocks_count,
free_blocks_count, input->reserved_blocks);
+ ext4_get_group_no_and_offset(sb, start, NULL, &offset);
if (group != sbi->s_groups_count)
ext4_warning(sb, __FUNCTION__,
"Cannot add at group %u (only %lu groups)",
input->group, sbi->s_groups_count);
- else if ((start - le32_to_cpu(es->s_first_data_block)) %
- EXT4_BLOCKS_PER_GROUP(sb))
- ext4_warning(sb, __FUNCTION__, "Last group not full");
+ else if (offset != 0)
+ ext4_warning(sb, __FUNCTION__, "Last group not full");
else if (input->reserved_blocks > input->blocks_count / 5)
ext4_warning(sb, __FUNCTION__, "Reserved blocks too high (%u)",
input->reserved_blocks);
@@ -945,7 +945,7 @@
if (n_blocks_count > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
printk(KERN_ERR "EXT4-fs: filesystem on %s:"
- " too large to resize to %lu blocks safely\n",
+ " too large to resize to "E3FSBLK" blocks safely\n",
sb->s_id, n_blocks_count);
if (sizeof(sector_t) < 8)
ext4_warning(sb, __FUNCTION__,
@@ -960,8 +960,7 @@
}
/* Handle the remaining blocks in the last group only. */
- last = (o_blocks_count - le32_to_cpu(es->s_first_data_block)) %
- EXT4_BLOCKS_PER_GROUP(sb);
+ ext4_get_group_no_and_offset(sb, o_blocks_count, NULL, &last);
if (last == 0) {
ext4_warning(sb, __FUNCTION__,