/**
* nilfs_palloc_delete_block - delete a block on the persistent allocator file
* @inode: inode of metadata file using this allocator
* @blkoff: block offset
* @prev: nilfs_bh_assoc struct of the last used buffer
* @lock: spin lock protecting @prev
*/
static int nilfs_palloc_delete_block(struct inode *inode, unsigned long blkoff,
struct nilfs_bh_assoc *prev,
spinlock_t *lock)
{
spin_lock(lock);
if (prev->bh && blkoff == prev->blkoff) {
brelse(prev->bh);
prev->bh = NULL;
}
spin_unlock(lock);
return nilfs_mdt_delete_block(inode, blkoff);
}
static int nilfs_sufile_delete_segment_usage_block(struct inode *sufile,
__u64 segnum)
{
return nilfs_mdt_delete_block(sufile,
nilfs_sufile_get_blkoff(sufile, segnum));
}
static inline int nilfs_cpfile_delete_checkpoint_block(struct inode *cpfile,
__u64 cno)
{
return nilfs_mdt_delete_block(cpfile,
nilfs_cpfile_get_blkoff(cpfile, cno));
}
