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-rw-r--r--fs/qnx4/bitmap.c81
1 files changed, 0 insertions, 81 deletions
diff --git a/fs/qnx4/bitmap.c b/fs/qnx4/bitmap.c
index e1cd061a25f7..0afba069d567 100644
--- a/fs/qnx4/bitmap.c
+++ b/fs/qnx4/bitmap.c
@@ -78,84 +78,3 @@ unsigned long qnx4_count_free_blocks(struct super_block *sb)
78 78
79 return total_free; 79 return total_free;
80} 80}
81
82#ifdef CONFIG_QNX4FS_RW
83
84int qnx4_is_free(struct super_block *sb, long block)
85{
86 int start = le32_to_cpu(qnx4_sb(sb)->BitMap->di_first_xtnt.xtnt_blk) - 1;
87 int size = le32_to_cpu(qnx4_sb(sb)->BitMap->di_size);
88 struct buffer_head *bh;
89 const char *g;
90 int ret = -EIO;
91
92 start += block / (QNX4_BLOCK_SIZE * 8);
93 QNX4DEBUG(("qnx4: is_free requesting block [%lu], bitmap in block [%lu]\n",
94 (unsigned long) block, (unsigned long) start));
95 (void) size; /* CHECKME */
96 bh = sb_bread(sb, start);
97 if (bh == NULL) {
98 return -EIO;
99 }
100 g = bh->b_data + (block % QNX4_BLOCK_SIZE);
101 if (((*g) & (1 << (block % 8))) == 0) {
102 QNX4DEBUG(("qnx4: is_free -> block is free\n"));
103 ret = 1;
104 } else {
105 QNX4DEBUG(("qnx4: is_free -> block is busy\n"));
106 ret = 0;
107 }
108 brelse(bh);
109
110 return ret;
111}
112
113int qnx4_set_bitmap(struct super_block *sb, long block, int busy)
114{
115 int start = le32_to_cpu(qnx4_sb(sb)->BitMap->di_first_xtnt.xtnt_blk) - 1;
116 int size = le32_to_cpu(qnx4_sb(sb)->BitMap->di_size);
117 struct buffer_head *bh;
118 char *g;
119
120 start += block / (QNX4_BLOCK_SIZE * 8);
121 QNX4DEBUG(("qnx4: set_bitmap requesting block [%lu], bitmap in block [%lu]\n",
122 (unsigned long) block, (unsigned long) start));
123 (void) size; /* CHECKME */
124 bh = sb_bread(sb, start);
125 if (bh == NULL) {
126 return -EIO;
127 }
128 g = bh->b_data + (block % QNX4_BLOCK_SIZE);
129 if (busy == 0) {
130 (*g) &= ~(1 << (block % 8));
131 } else {
132 (*g) |= (1 << (block % 8));
133 }
134 mark_buffer_dirty(bh);
135 brelse(bh);
136
137 return 0;
138}
139
140static void qnx4_clear_inode(struct inode *inode)
141{
142 struct qnx4_inode_entry *qnx4_ino = qnx4_raw_inode(inode);
143 /* What for? */
144 memset(qnx4_ino->di_fname, 0, sizeof qnx4_ino->di_fname);
145 qnx4_ino->di_size = 0;
146 qnx4_ino->di_num_xtnts = 0;
147 qnx4_ino->di_mode = 0;
148 qnx4_ino->di_status = 0;
149}
150
151void qnx4_free_inode(struct inode *inode)
152{
153 if (inode->i_ino < 1) {
154 printk("free_inode: inode 0 or nonexistent inode\n");
155 return;
156 }
157 qnx4_clear_inode(inode);
158 clear_inode(inode);
159}
160
161#endif