diff options
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ext2/balloc.c | 50 | ||||
-rw-r--r-- | fs/ext3/balloc.c | 48 | ||||
-rw-r--r-- | fs/ext4/balloc.c | 41 |
3 files changed, 9 insertions, 130 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index 18a42de25b55..377ad172d74b 100644 --- a/fs/ext2/balloc.c +++ b/fs/ext2/balloc.c | |||
@@ -69,14 +69,6 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb, | |||
69 | return desc + offset; | 69 | return desc + offset; |
70 | } | 70 | } |
71 | 71 | ||
72 | static inline int | ||
73 | block_in_use(unsigned long block, struct super_block *sb, unsigned char *map) | ||
74 | { | ||
75 | return ext2_test_bit ((block - | ||
76 | le32_to_cpu(EXT2_SB(sb)->s_es->s_first_data_block)) % | ||
77 | EXT2_BLOCKS_PER_GROUP(sb), map); | ||
78 | } | ||
79 | |||
80 | /* | 72 | /* |
81 | * Read the bitmap for a given block_group, reading into the specified | 73 | * Read the bitmap for a given block_group, reading into the specified |
82 | * slot in the superblock's bitmap cache. | 74 | * slot in the superblock's bitmap cache. |
@@ -86,51 +78,20 @@ block_in_use(unsigned long block, struct super_block *sb, unsigned char *map) | |||
86 | static struct buffer_head * | 78 | static struct buffer_head * |
87 | read_block_bitmap(struct super_block *sb, unsigned int block_group) | 79 | read_block_bitmap(struct super_block *sb, unsigned int block_group) |
88 | { | 80 | { |
89 | int i; | ||
90 | struct ext2_group_desc * desc; | 81 | struct ext2_group_desc * desc; |
91 | struct buffer_head * bh = NULL; | 82 | struct buffer_head * bh = NULL; |
92 | unsigned int bitmap_blk; | 83 | |
93 | |||
94 | desc = ext2_get_group_desc (sb, block_group, NULL); | 84 | desc = ext2_get_group_desc (sb, block_group, NULL); |
95 | if (!desc) | 85 | if (!desc) |
96 | return NULL; | 86 | goto error_out; |
97 | bitmap_blk = le32_to_cpu(desc->bg_block_bitmap); | 87 | bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap)); |
98 | bh = sb_bread(sb, bitmap_blk); | ||
99 | if (!bh) | 88 | if (!bh) |
100 | ext2_error (sb, __FUNCTION__, | 89 | ext2_error (sb, "read_block_bitmap", |
101 | "Cannot read block bitmap - " | 90 | "Cannot read block bitmap - " |
102 | "block_group = %d, block_bitmap = %u", | 91 | "block_group = %d, block_bitmap = %u", |
103 | block_group, le32_to_cpu(desc->bg_block_bitmap)); | 92 | block_group, le32_to_cpu(desc->bg_block_bitmap)); |
104 | |||
105 | /* check whether block bitmap block number is set */ | ||
106 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
107 | /* bad block bitmap */ | ||
108 | goto error_out; | ||
109 | } | ||
110 | /* check whether the inode bitmap block number is set */ | ||
111 | bitmap_blk = le32_to_cpu(desc->bg_inode_bitmap); | ||
112 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
113 | /* bad block bitmap */ | ||
114 | goto error_out; | ||
115 | } | ||
116 | /* check whether the inode table block number is set */ | ||
117 | bitmap_blk = le32_to_cpu(desc->bg_inode_table); | ||
118 | for (i = 0; i < EXT2_SB(sb)->s_itb_per_group; i++, bitmap_blk++) { | ||
119 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
120 | /* bad block bitmap */ | ||
121 | goto error_out; | ||
122 | } | ||
123 | } | ||
124 | |||
125 | return bh; | ||
126 | |||
127 | error_out: | 93 | error_out: |
128 | brelse(bh); | 94 | return bh; |
129 | ext2_error(sb, __FUNCTION__, | ||
130 | "Invalid block bitmap - " | ||
131 | "block_group = %d, block = %u", | ||
132 | block_group, bitmap_blk); | ||
133 | return NULL; | ||
134 | } | 95 | } |
135 | 96 | ||
136 | static void release_blocks(struct super_block *sb, int count) | 97 | static void release_blocks(struct super_block *sb, int count) |
@@ -1461,7 +1422,6 @@ unsigned long ext2_count_free_blocks (struct super_block * sb) | |||
1461 | #endif | 1422 | #endif |
1462 | } | 1423 | } |
1463 | 1424 | ||
1464 | |||
1465 | static inline int test_root(int a, int b) | 1425 | static inline int test_root(int a, int b) |
1466 | { | 1426 | { |
1467 | int num = b; | 1427 | int num = b; |
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; |
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index e906b65448e2..71ee95e534fd 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c | |||
@@ -189,15 +189,6 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block * sb, | |||
189 | return desc; | 189 | return desc; |
190 | } | 190 | } |
191 | 191 | ||
192 | static inline int | ||
193 | block_in_use(ext4_fsblk_t block, struct super_block *sb, unsigned char *map) | ||
194 | { | ||
195 | ext4_grpblk_t offset; | ||
196 | |||
197 | ext4_get_group_no_and_offset(sb, block, NULL, &offset); | ||
198 | return ext4_test_bit (offset, map); | ||
199 | } | ||
200 | |||
201 | /** | 192 | /** |
202 | * read_block_bitmap() | 193 | * read_block_bitmap() |
203 | * @sb: super block | 194 | * @sb: super block |
@@ -211,7 +202,6 @@ block_in_use(ext4_fsblk_t block, struct super_block *sb, unsigned char *map) | |||
211 | struct buffer_head * | 202 | struct buffer_head * |
212 | read_block_bitmap(struct super_block *sb, unsigned int block_group) | 203 | read_block_bitmap(struct super_block *sb, unsigned int block_group) |
213 | { | 204 | { |
214 | int i; | ||
215 | struct ext4_group_desc * desc; | 205 | struct ext4_group_desc * desc; |
216 | struct buffer_head * bh = NULL; | 206 | struct buffer_head * bh = NULL; |
217 | ext4_fsblk_t bitmap_blk; | 207 | ext4_fsblk_t bitmap_blk; |
@@ -239,38 +229,7 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group) | |||
239 | "Cannot read block bitmap - " | 229 | "Cannot read block bitmap - " |
240 | "block_group = %d, block_bitmap = %llu", | 230 | "block_group = %d, block_bitmap = %llu", |
241 | block_group, bitmap_blk); | 231 | block_group, bitmap_blk); |
242 | |||
243 | /* check whether block bitmap block number is set */ | ||
244 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
245 | /* bad block bitmap */ | ||
246 | goto error_out; | ||
247 | } | ||
248 | |||
249 | /* check whether the inode bitmap block number is set */ | ||
250 | bitmap_blk = ext4_inode_bitmap(sb, desc); | ||
251 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
252 | /* bad block bitmap */ | ||
253 | goto error_out; | ||
254 | } | ||
255 | /* check whether the inode table block number is set */ | ||
256 | bitmap_blk = ext4_inode_table(sb, desc); | ||
257 | for (i = 0; i < EXT4_SB(sb)->s_itb_per_group; i++, bitmap_blk++) { | ||
258 | if (!block_in_use(bitmap_blk, sb, bh->b_data)) { | ||
259 | /* bad block bitmap */ | ||
260 | goto error_out; | ||
261 | } | ||
262 | } | ||
263 | |||
264 | return bh; | 232 | return bh; |
265 | |||
266 | error_out: | ||
267 | brelse(bh); | ||
268 | ext4_error(sb, __FUNCTION__, | ||
269 | "Invalid block bitmap - " | ||
270 | "block_group = %d, block = %llu", | ||
271 | block_group, bitmap_blk); | ||
272 | return NULL; | ||
273 | |||
274 | } | 233 | } |
275 | /* | 234 | /* |
276 | * The reservation window structure operations | 235 | * The reservation window structure operations |