diff options
Diffstat (limited to 'fs/ext3/balloc.c')
-rw-r--r-- | fs/ext3/balloc.c | 48 |
1 files changed, 4 insertions, 44 deletions
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index 7a87d15523be..a8ba7e831278 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c | |||
@@ -80,14 +80,6 @@ struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb, | |||
80 | return desc + offset; | 80 | return desc + offset; |
81 | } | 81 | } |
82 | 82 | ||
83 | static inline int | ||
84 | block_in_use(ext3_fsblk_t block, struct super_block *sb, unsigned char *map) | ||
85 | { | ||
86 | return ext3_test_bit ((block - | ||
87 | le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block)) % | ||
88 | EXT3_BLOCKS_PER_GROUP(sb), map); | ||
89 | } | ||
90 | |||
91 | /** | 83 | /** |
92 | * read_block_bitmap() | 84 | * read_block_bitmap() |
93 | * @sb: super block | 85 | * @sb: super block |
@@ -101,51 +93,20 @@ block_in_use(ext3_fsblk_t block, struct super_block *sb, unsigned char *map) | |||
101 | static struct buffer_head * | 93 | static struct buffer_head * |
102 | read_block_bitmap(struct super_block *sb, unsigned int block_group) | 94 | read_block_bitmap(struct super_block *sb, unsigned int block_group) |
103 | { | 95 | { |
104 | int i; | ||
105 | struct ext3_group_desc * desc; | 96 | struct ext3_group_desc * desc; |
106 | struct buffer_head * bh = NULL; | 97 | struct buffer_head * bh = NULL; |
107 | ext3_fsblk_t bitmap_blk; | ||
108 | 98 | ||
109 | desc = ext3_get_group_desc (sb, block_group, NULL); | 99 | desc = ext3_get_group_desc (sb, block_group, NULL); |
110 | if (!desc) | 100 | if (!desc) |
111 | return NULL; | 101 | goto error_out; |
112 | bitmap_blk = le32_to_cpu(desc->bg_block_bitmap); | 102 | bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap)); |
113 | bh = sb_bread(sb, bitmap_blk); | ||
114 | if (!bh) | 103 | if (!bh) |
115 | ext3_error (sb, __FUNCTION__, | 104 | ext3_error (sb, "read_block_bitmap", |
116 | "Cannot read block bitmap - " | 105 | "Cannot read block bitmap - " |
117 | "block_group = %d, block_bitmap = %u", | 106 | "block_group = %d, block_bitmap = %u", |
118 | block_group, le32_to_cpu(desc->bg_block_bitmap)); | 107 | block_group, le32_to_cpu(desc->bg_block_bitmap)); |
119 | |||
120 | /* check whether block bitmap block number is set */ | ||
121 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
122 | /* bad block bitmap */ | ||
123 | goto error_out; | ||
124 | } | ||
125 | /* check whether the inode bitmap block number is set */ | ||
126 | bitmap_blk = le32_to_cpu(desc->bg_inode_bitmap); | ||
127 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
128 | /* bad block bitmap */ | ||
129 | goto error_out; | ||
130 | } | ||
131 | /* check whether the inode table block number is set */ | ||
132 | bitmap_blk = le32_to_cpu(desc->bg_inode_table); | ||
133 | for (i = 0; i < EXT3_SB(sb)->s_itb_per_group; i++, bitmap_blk++) { | ||
134 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
135 | /* bad block bitmap */ | ||
136 | goto error_out; | ||
137 | } | ||
138 | } | ||
139 | |||
140 | return bh; | ||
141 | |||
142 | error_out: | 108 | error_out: |
143 | brelse(bh); | 109 | return bh; |
144 | ext3_error(sb, __FUNCTION__, | ||
145 | "Invalid block bitmap - " | ||
146 | "block_group = %d, block = %lu", | ||
147 | block_group, bitmap_blk); | ||
148 | return NULL; | ||
149 | } | 110 | } |
150 | /* | 111 | /* |
151 | * The reservation window structure operations | 112 | * The reservation window structure operations |
@@ -1772,7 +1733,6 @@ ext3_fsblk_t ext3_count_free_blocks(struct super_block *sb) | |||
1772 | #endif | 1733 | #endif |
1773 | } | 1734 | } |
1774 | 1735 | ||
1775 | |||
1776 | static inline int test_root(int a, int b) | 1736 | static inline int test_root(int a, int b) |
1777 | { | 1737 | { |
1778 | int num = b; | 1738 | int num = b; |