linux-master/mm/hugetlb.c

253 static inline struct hugepage_subpool *subpool_inode(struct inode *inode)
255 	return HUGETLBFS_SB(inode->i_sb)->spool;
935 void hugetlb_fix_reserve_counts(struct inode *inode)
937 	struct hugepage_subpool *spool = subpool_inode(inode);
943 		struct hstate *h = hstate_inode(inode);
1135 static inline struct resv_map *inode_resv_map(struct inode *inode)
1138 	 * At inode evict time, i_mapping may not point to the original
1139 	 * address space within the inode.  This original address space
1141 	 * address space embedded within the inode.
1142 	 * The VERY common case is inode->mapping == &inode->i_data but,
1145 	return (struct resv_map *)(&inode->i_data)->i_private_data;
1153 		struct inode *inode = mapping->host;
1155 		return inode_resv_map(inode);
1255 		 * reserve count remains after releasing inode, because this
6136 	struct inode *inode = mapping->host;
6137 	struct hstate *h = hstate_inode(inode);
6156 	spin_lock(&inode->i_lock);
6157 	inode->i_blocks += blocks_per_huge_page(h);
6158 	spin_unlock(&inode->i_lock);
7095 bool hugetlb_reserve_pages(struct inode *inode,
7101 	struct hstate *h = hstate_inode(inode);
7102 	struct hugepage_subpool *spool = subpool_inode(inode);
7139 		resv_map = inode_resv_map(inode);
7255 long hugetlb_unreserve_pages(struct inode *inode, long start, long end,
7258 	struct hstate *h = hstate_inode(inode);
7259 	struct resv_map *resv_map = inode_resv_map(inode);
7261 	struct hugepage_subpool *spool = subpool_inode(inode);
7265 	 * Since this routine can be called in the evict inode path for all
7279 	spin_lock(&inode->i_lock);
7280 	inode->i_blocks -= (blocks_per_huge_page(h) * freed);
7281 	spin_unlock(&inode->i_lock);