From fd2d42912f9f09e5250cb3b024ee0625704e9cb7 Mon Sep 17 00:00:00 2001 From: Avantika Mathur Date: Mon, 28 Jan 2008 23:58:27 -0500 Subject: ext4: add ext4_group_t, and change all group variables to this type. In many places variables for block group are of type int, which limits the maximum number of block groups to 2^31. Each block group can have up to 2^15 blocks, with a 4K block size, and the max filesystem size is limited to 2^31 * (2^15 * 2^12) = 2^58 -- or 256 PB This patch introduces a new type ext4_group_t, of type unsigned long, to represent block group numbers in ext4. All occurrences of block group variables are converted to type ext4_group_t. Signed-off-by: Avantika Mathur --- fs/ext4/resize.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'fs/ext4/resize.c') diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index bd8a52bb3999..7090c2d25c76 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -28,7 +28,7 @@ static int verify_group_input(struct super_block *sb, struct ext4_super_block *es = sbi->s_es; ext4_fsblk_t start = ext4_blocks_count(es); ext4_fsblk_t end = start + input->blocks_count; - unsigned group = input->group; + ext4_group_t group = input->group; ext4_fsblk_t itend = input->inode_table + sbi->s_itb_per_group; unsigned overhead = ext4_bg_has_super(sb, group) ? (1 + ext4_bg_num_gdb(sb, group) + @@ -357,7 +357,7 @@ static int verify_reserved_gdb(struct super_block *sb, struct buffer_head *primary) { const ext4_fsblk_t blk = primary->b_blocknr; - const unsigned long end = EXT4_SB(sb)->s_groups_count; + const ext4_group_t end = EXT4_SB(sb)->s_groups_count; unsigned three = 1; unsigned five = 5; unsigned seven = 7; @@ -656,12 +656,12 @@ static void update_backups(struct super_block *sb, int blk_off, char *data, int size) { struct ext4_sb_info *sbi = EXT4_SB(sb); - const unsigned long last = sbi->s_groups_count; + const ext4_group_t last = sbi->s_groups_count; const int bpg = EXT4_BLOCKS_PER_GROUP(sb); unsigned three = 1; unsigned five = 5; unsigned seven = 7; - unsigned group; + ext4_group_t group; int rest = sb->s_blocksize - size; handle_t *handle; int err = 0, err2; @@ -716,7 +716,7 @@ static void update_backups(struct super_block *sb, exit_err: if (err) { ext4_warning(sb, __FUNCTION__, - "can't update backup for group %d (err %d), " + "can't update backup for group %lu (err %d), " "forcing fsck on next reboot", group, err); sbi->s_mount_state &= ~EXT4_VALID_FS; sbi->s_es->s_state &= cpu_to_le16(~EXT4_VALID_FS); @@ -952,7 +952,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, ext4_fsblk_t n_blocks_count) { ext4_fsblk_t o_blocks_count; - unsigned long o_groups_count; + ext4_group_t o_groups_count; ext4_grpblk_t last; ext4_grpblk_t add; struct buffer_head * bh; -- cgit v1.2.3 From c549a95d40efd83fc054785dd1634e8b71fba890 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 28 Jan 2008 23:58:27 -0500 Subject: ext4: fix up EXT4FS_DEBUG builds Builds with EXT4FS_DEBUG defined (to enable ext4_debug()) fail without these changes. Clean up some format warnings too. Signed-off-by: Eric Sandeen Signed-off-by: Mingming Cao --- fs/ext4/balloc.c | 6 +++--- fs/ext4/ialloc.c | 2 +- fs/ext4/resize.c | 16 ++++++++-------- 3 files changed, 12 insertions(+), 12 deletions(-) (limited to 'fs/ext4/resize.c') diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index 7ae223ed152f..80a4616c8244 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -1630,7 +1630,7 @@ ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode, sbi = EXT4_SB(sb); es = EXT4_SB(sb)->s_es; - ext4_debug("goal=%lu.\n", goal); + ext4_debug("goal=%llu.\n", goal); /* * Allocate a block from reservation only when * filesystem is mounted with reservation(default,-o reservation), and @@ -1740,7 +1740,7 @@ retry_alloc: allocated: - ext4_debug("using block group %d(%d)\n", + ext4_debug("using block group %lu(%d)\n", group_no, gdp->bg_free_blocks_count); BUFFER_TRACE(gdp_bh, "get_write_access"); @@ -1898,7 +1898,7 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb) brelse(bitmap_bh); printk("ext4_count_free_blocks: stored = %llu" ", computed = %llu, %llu\n", - EXT4_FREE_BLOCKS_COUNT(es), + ext4_free_blocks_count(es), desc_count, bitmap_count); return bitmap_count; #else diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 17b5df14f85b..575b5215c808 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -857,7 +857,7 @@ unsigned long ext4_count_free_inodes (struct super_block * sb) continue; x = ext4_count_free(bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8); - printk("group %d: stored = %d, counted = %lu\n", + printk(KERN_DEBUG "group %lu: stored = %d, counted = %lu\n", i, le16_to_cpu(gdp->bg_free_inodes_count), x); bitmap_count += x; } diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 7090c2d25c76..4fbba60816f4 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -206,7 +206,7 @@ static int setup_new_group_blocks(struct super_block *sb, } if (ext4_bg_has_super(sb, input->group)) { - ext4_debug("mark backup superblock %#04lx (+0)\n", start); + ext4_debug("mark backup superblock %#04llx (+0)\n", start); ext4_set_bit(0, bh->b_data); } @@ -215,7 +215,7 @@ static int setup_new_group_blocks(struct super_block *sb, i < gdblocks; i++, block++, bit++) { struct buffer_head *gdb; - ext4_debug("update backup group %#04lx (+%d)\n", block, bit); + ext4_debug("update backup group %#04llx (+%d)\n", block, bit); if ((err = extend_or_restart_transaction(handle, 1, bh))) goto exit_bh; @@ -243,7 +243,7 @@ static int setup_new_group_blocks(struct super_block *sb, i < reserved_gdb; i++, block++, bit++) { struct buffer_head *gdb; - ext4_debug("clear reserved block %#04lx (+%d)\n", block, bit); + ext4_debug("clear reserved block %#04llx (+%d)\n", block, bit); if ((err = extend_or_restart_transaction(handle, 1, bh))) goto exit_bh; @@ -256,10 +256,10 @@ static int setup_new_group_blocks(struct super_block *sb, ext4_set_bit(bit, bh->b_data); brelse(gdb); } - ext4_debug("mark block bitmap %#04x (+%ld)\n", input->block_bitmap, + ext4_debug("mark block bitmap %#04llx (+%llu)\n", input->block_bitmap, input->block_bitmap - start); ext4_set_bit(input->block_bitmap - start, bh->b_data); - ext4_debug("mark inode bitmap %#04x (+%ld)\n", input->inode_bitmap, + ext4_debug("mark inode bitmap %#04llx (+%llu)\n", input->inode_bitmap, input->inode_bitmap - start); ext4_set_bit(input->inode_bitmap - start, bh->b_data); @@ -268,7 +268,7 @@ static int setup_new_group_blocks(struct super_block *sb, i < sbi->s_itb_per_group; i++, bit++, block++) { struct buffer_head *it; - ext4_debug("clear inode block %#04lx (+%d)\n", block, bit); + ext4_debug("clear inode block %#04llx (+%d)\n", block, bit); if ((err = extend_or_restart_transaction(handle, 1, bh))) goto exit_bh; @@ -291,7 +291,7 @@ static int setup_new_group_blocks(struct super_block *sb, brelse(bh); /* Mark unused entries in inode bitmap used */ - ext4_debug("clear inode bitmap %#04x (+%ld)\n", + ext4_debug("clear inode bitmap %#04llx (+%llu)\n", input->inode_bitmap, input->inode_bitmap - start); if (IS_ERR(bh = bclean(handle, sb, input->inode_bitmap))) { err = PTR_ERR(bh); @@ -1054,7 +1054,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh); sb->s_dirt = 1; unlock_super(sb); - ext4_debug("freeing blocks %lu through %llu\n", o_blocks_count, + ext4_debug("freeing blocks %llu through %llu\n", o_blocks_count, o_blocks_count + add); ext4_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks); ext4_debug("freed blocks %llu through %llu\n", o_blocks_count, -- cgit v1.2.3