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-rw-r--r--fs/ext2/balloc.c50
-rw-r--r--fs/ext3/balloc.c48
-rw-r--r--fs/ext4/balloc.c41
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
72static inline int
73block_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)
86static struct buffer_head * 78static struct buffer_head *
87read_block_bitmap(struct super_block *sb, unsigned int block_group) 79read_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
127error_out: 93error_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
136static void release_blocks(struct super_block *sb, int count) 97static 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
1465static inline int test_root(int a, int b) 1425static 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
83static inline int
84block_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)
101static struct buffer_head * 93static struct buffer_head *
102read_block_bitmap(struct super_block *sb, unsigned int block_group) 94read_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
142error_out: 108error_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
1776static inline int test_root(int a, int b) 1736static 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
192static inline int
193block_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)
211struct buffer_head * 202struct buffer_head *
212read_block_bitmap(struct super_block *sb, unsigned int block_group) 203read_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
266error_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