From 21730eed11de42f22afcbd43f450a1872a0b5ea1 Mon Sep 17 00:00:00 2001 From: Valerie Henson Date: Sun, 25 Jun 2006 05:48:12 -0700 Subject: [PATCH] Make EXT2_DEBUG work again This patch makes EXT2_DEBUG work again. Due to lack of proper include file, EXT2_DEBUG was undefined in bitmap.c and ext2_count_free() is left out. Moved to balloc.c and removed bitmap.c entirely. Second, debug versions of ext2_count_free_{inodes/blocks} reacquires superblock lock. Moved lock into callers. Signed-off-by: Val Henson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext2/balloc.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) (limited to 'fs/ext2/balloc.c') diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index 2c00953d4b0..433a213a8bd 100644 --- a/fs/ext2/balloc.c +++ b/fs/ext2/balloc.c @@ -521,6 +521,26 @@ io_error: goto out_release; } +#ifdef EXT2FS_DEBUG + +static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0}; + +unsigned long ext2_count_free (struct buffer_head * map, unsigned int numchars) +{ + unsigned int i; + unsigned long sum = 0; + + if (!map) + return (0); + for (i = 0; i < numchars; i++) + sum += nibblemap[map->b_data[i] & 0xf] + + nibblemap[(map->b_data[i] >> 4) & 0xf]; + return (sum); +} + +#endif /* EXT2FS_DEBUG */ + +/* Superblock must be locked */ unsigned long ext2_count_free_blocks (struct super_block * sb) { struct ext2_group_desc * desc; @@ -530,7 +550,6 @@ unsigned long ext2_count_free_blocks (struct super_block * sb) unsigned long bitmap_count, x; struct ext2_super_block *es; - lock_super (sb); es = EXT2_SB(sb)->s_es; desc_count = 0; bitmap_count = 0; @@ -554,7 +573,6 @@ unsigned long ext2_count_free_blocks (struct super_block * sb) printk("ext2_count_free_blocks: stored = %lu, computed = %lu, %lu\n", (long)le32_to_cpu(es->s_free_blocks_count), desc_count, bitmap_count); - unlock_super (sb); return bitmap_count; #else for (i = 0; i < EXT2_SB(sb)->s_groups_count; i++) { -- cgit v1.2.3