void minix_free_block(struct inode *inode, unsigned long block)
{
struct super_block *sb = inode->i_sb;
struct minix_sb_info *sbi = minix_sb(sb);
struct buffer_head *bh;
int k = sb->s_blocksize_bits + 3;
unsigned long bit, zone;
if (block < sbi->s_firstdatazone || block >= sbi->s_nzones) {
printk("Trying to free block not in datazone\n");
return;
}
zone = block - sbi->s_firstdatazone + 1;
bit = zone & ((1<<k) - 1);
zone >>= k;
if (zone >= sbi->s_zmap_blocks) {
printk("minix_free_block: nonexistent bitmap buffer\n");
return;
}
bh = sbi->s_zmap[zone];
spin_lock(&bitmap_lock);
if (!minix_test_and_clear_bit(bit, bh->b_data))
printk("minix_free_block (%s:%lu): bit already cleared\n",
sb->s_id, block);
spin_unlock(&bitmap_lock);
mark_buffer_dirty(bh);
return;
}
void minix_free_inode(struct inode * inode)
{
struct super_block *sb = inode->i_sb;
struct minix_sb_info *sbi = minix_sb(inode->i_sb);
struct buffer_head *bh;
int k = sb->s_blocksize_bits + 3;
unsigned long ino, bit;
ino = inode->i_ino;
if (ino < 1 || ino > sbi->s_ninodes) {
printk("minix_free_inode: inode 0 or nonexistent inode\n");
return;
}
bit = ino & ((1<<k) - 1);
ino >>= k;
if (ino >= sbi->s_imap_blocks) {
printk("minix_free_inode: nonexistent imap in superblock\n");
return;
}
minix_clear_inode(inode); /* */
bh = sbi->s_imap[ino];
spin_lock(&bitmap_lock);
if (!minix_test_and_clear_bit(bit, bh->b_data))
printk("minix_free_inode: bit %lu already cleared\n", bit);
spin_unlock(&bitmap_lock);
mark_buffer_dirty(bh);
}
void minix_free_inode(struct inode * inode)
{
struct super_block *sb = inode->i_sb;
struct minix_sb_info *sbi = minix_sb(inode->i_sb);
struct buffer_head *bh;
int k = sb->s_blocksize_bits + 3;
unsigned long ino, bit;
ino = inode->i_ino;
if (ino < 1 || ino > sbi->s_ninodes) {
;
return;
}
bit = ino & ((1<<k) - 1);
ino >>= k;
if (ino >= sbi->s_imap_blocks) {
;
return;
}
minix_clear_inode(inode); /* clear on-disk copy */
bh = sbi->s_imap[ino];
spin_lock(&bitmap_lock);
if (!minix_test_and_clear_bit(bit, bh->b_data))
;
spin_unlock(&bitmap_lock);
mark_buffer_dirty(bh);
}
void minix_free_inode(struct minix_inode_info *inode) {
struct minix_sb_info *sbi = inode->i_sb;
u8 *ib;
unsigned int k = BLOCK_SHIFT + 3;
unsigned long inr,bit;
inr = inode->i_inr;
if(inr < 1 || inr > sbi->s_ninodes) {
mfs_err("inode 0 or nonexistent inode.\n");
return;
}
bit = inr & ((1 << k) - 1);
inr >>= k;
if(inr >= sbi->s_imap_blocks) {
mfs_err("nonexistenet imap in superblock.\n");
return;
}
minix_clear_inode(inode);
ib = sbi->s_imap[inr];
lock();
if(!minix_test_and_clear_bit(bit,ib))
mfs_err("bit %lu already cleared.\n",bit);
unlock();
}
void minix_free_block(struct minix_inode_info *inode,unsigned long block) {
struct minix_sb_info *sbi = inode->i_sb;
u8 *ib;
int k = BLOCK_SHIFT + 3;
unsigned long bit,zone;
if(block < sbi->s_firstdatazone || block >= sbi->s_nzones) {
mfs_err("Trying to free block not in datazone.\n");
return ;
}
zone = block - sbi->s_firstdatazone + 1;
bit = zone & ((1 << k) - 1);
zone >>= k;
if(zone >= sbi->s_zmap_blocks) {
mfs_err("nonexistent bitmap buffer.\n");
return ;
}
ib = sbi->s_zmap[zone];
lock();
if(!minix_test_and_clear_bit(bit,ib))
mfs_err("(%d): bit already cleared.\n",block);
unlock();
//mark_buffer_dirty(ib);
}
