static inline void
_free_block_run_flush (struct free_block_run *fbr, unsigned long count)
{
fbr->node->dn_stat.st_blocks -= count << log2_stat_blocks_per_fs_block;
fbr->node->dn_stat_dirty = 1;
ext2_free_blocks (fbr->first_block, count);
}
/*
* Free a block or fragment.
*
* pass on to the Linux code
*/
void
ext2_blkfree(struct inode *ip, daddr_t bno, long size)
{
struct ext2_sb_info *fs;
fs = ip->i_e2fs;
/*
* call Linux code with mount *, block number, count
*/
ext2_free_blocks(ITOV(ip)->v_mount, bno, size / fs->s_frag_size);
}
/*
* Linux calls this functions at the following locations:
* (1) the inode is freed
* (2) a preallocation miss occurs
* (3) truncate is called
* (4) release_file is called and f_mode & 2
*
* I call it in ext2_inactive, ext2_truncate, ext2_vfree and in (2)
* the call in vfree might be redundant
*/
void
ext2_discard_prealloc(struct inode *ip)
{
#ifdef EXT2_PREALLOCATE
if (ip->i_prealloc_count) {
int i = ip->i_prealloc_count;
ip->i_prealloc_count = 0;
ext2_free_blocks (ITOV(ip)->v_mount,
ip->i_prealloc_block,
i);
}
#endif
}
void ext2_discard_prealloc (struct inode * inode)
{
#ifdef EXT2_PREALLOCATE
lock_kernel();
/* Writer: ->i_prealloc* */
if (inode->u.ext2_i.i_prealloc_count) {
unsigned short total = inode->u.ext2_i.i_prealloc_count;
unsigned long block = inode->u.ext2_i.i_prealloc_block;
inode->u.ext2_i.i_prealloc_count = 0;
inode->u.ext2_i.i_prealloc_block = 0;
/* Writer: end */
ext2_free_blocks (inode, block, total);
}
unlock_kernel();
#endif
}
void ext2_discard_prealloc (struct inode * inode)
{
#ifdef EXT2_PREALLOCATE
struct ext2_inode_info *ei = EXT2_I(inode);
write_lock(&ei->i_meta_lock);
if (ei->i_prealloc_count) {
unsigned short total = ei->i_prealloc_count;
unsigned long block = ei->i_prealloc_block;
ei->i_prealloc_count = 0;
ei->i_prealloc_block = 0;
write_unlock(&ei->i_meta_lock);
ext2_free_blocks (inode, block, total);
return;
} else
write_unlock(&ei->i_meta_lock);
#endif
}