void reiserfs_free_block (struct reiserfs_transaction_handle *th,
unsigned long block) {
struct super_block * s = th->t_super;
RFALSE(!s, "vs-4061: trying to free block on nonexistent device");
RFALSE(is_reusable (s, block, 1) == 0, "vs-4071: can not free such block");
/* mark it before we clear it, just in case */
journal_mark_freed(th, s, block) ;
_reiserfs_free_block(th, block) ;
}
void reiserfs_free_block (struct reiserfs_transaction_handle *th,
struct inode *inode, b_blocknr_t block,
int for_unformatted)
{
struct super_block * s = th->t_super;
BUG_ON (!th->t_trans_id);
RFALSE(!s, "vs-4061: trying to free block on nonexistent device");
RFALSE(is_reusable (s, block, 1) == 0, "vs-4071: can not free such block");
/* mark it before we clear it, just in case */
journal_mark_freed(th, s, block) ;
_reiserfs_free_block(th, inode, block, for_unformatted) ;
}
/* I wonder if it would be less modest
now that we use journaling. -Hans */
void reiserfs_free_block (struct reiserfs_transaction_handle *th, unsigned long block)
{
struct super_block * s = th->t_super;
struct reiserfs_super_block * rs;
struct buffer_head * sbh;
struct buffer_head ** apbh;
int nr, offset;
RFALSE(!s, "vs-4060: trying to free block on nonexistent device");
RFALSE(is_reusable (s, block, 1) == 0, "vs-4070: can not free such block");
PROC_INFO_INC( s, free_block );
rs = SB_DISK_SUPER_BLOCK (s);
sbh = SB_BUFFER_WITH_SB (s);
apbh = SB_AP_BITMAP (s);
get_bit_address (s, block, &nr, &offset);
/* mark it before we clear it, just in case */
journal_mark_freed(th, s, block) ;
reiserfs_prepare_for_journal(s, apbh[nr], 1 ) ;
/* clear bit for the given block in bit map */
if (!reiserfs_test_and_clear_le_bit (offset, apbh[nr]->b_data)) {
reiserfs_warning ("vs-4080: reiserfs_free_block: "
"free_block (%04x:%lu)[dev:blocknr]: bit already cleared\n",
s->s_dev, block);
}
journal_mark_dirty (th, s, apbh[nr]);
reiserfs_prepare_for_journal(s, sbh, 1) ;
/* update super block */
set_sb_free_blocks( rs, sb_free_blocks(rs) + 1 );
journal_mark_dirty (th, s, sbh);
s->s_dirt = 1;
}
