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| author | Valerie Henson <val_henson@linux.intel.com> | 2006-06-25 14:48:12 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 19:01:12 +0200 |
| commit | 21730eed11de42f22afcbd43f450a1872a0b5ea1 (patch) | |
| tree | f695865bce3b87bbc9e1f0a8e61eaeecf8442b06 /fs/ext2/balloc.c | |
| parent | [PATCH] emu10k1: mark midi_spinlock as used (diff) | |
| download | linux-21730eed11de42f22afcbd43f450a1872a0b5ea1.tar.xz linux-21730eed11de42f22afcbd43f450a1872a0b5ea1.zip | |
[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 <val_henson@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext2/balloc.c')
| -rw-r--r-- | fs/ext2/balloc.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index 2c00953d4b0b..433a213a8bd9 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++) { |