Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
new file mode 100644
index 0000000..ae45676
--- /dev/null
+++ b/include/linux/hugetlb.h
@@ -0,0 +1,142 @@
+#ifndef _LINUX_HUGETLB_H
+#define _LINUX_HUGETLB_H
+
+#ifdef CONFIG_HUGETLB_PAGE
+
+#include <linux/mempolicy.h>
+
+struct ctl_table;
+
+static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
+{
+ return vma->vm_flags & VM_HUGETLB;
+}
+
+int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
+int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *);
+int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int);
+void zap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
+void unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
+int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
+int hugetlb_report_meminfo(char *);
+int hugetlb_report_node_meminfo(int, char *);
+int is_hugepage_mem_enough(size_t);
+unsigned long hugetlb_total_pages(void);
+struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address,
+ int write);
+struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
+ pmd_t *pmd, int write);
+int is_aligned_hugepage_range(unsigned long addr, unsigned long len);
+int pmd_huge(pmd_t pmd);
+struct page *alloc_huge_page(void);
+void free_huge_page(struct page *);
+
+extern unsigned long max_huge_pages;
+extern const unsigned long hugetlb_zero, hugetlb_infinity;
+extern int sysctl_hugetlb_shm_group;
+
+#ifndef ARCH_HAS_HUGEPAGE_ONLY_RANGE
+#define is_hugepage_only_range(mm, addr, len) 0
+#define hugetlb_free_pgtables(tlb, prev, start, end) do { } while (0)
+#endif
+
+#ifndef ARCH_HAS_PREPARE_HUGEPAGE_RANGE
+#define prepare_hugepage_range(addr, len) \
+ is_aligned_hugepage_range(addr, len)
+#else
+int prepare_hugepage_range(unsigned long addr, unsigned long len);
+#endif
+
+#else /* !CONFIG_HUGETLB_PAGE */
+
+static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
+{
+ return 0;
+}
+static inline unsigned long hugetlb_total_pages(void)
+{
+ return 0;
+}
+
+#define follow_hugetlb_page(m,v,p,vs,a,b,i) ({ BUG(); 0; })
+#define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL)
+#define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; })
+#define hugetlb_prefault(mapping, vma) ({ BUG(); 0; })
+#define zap_hugepage_range(vma, start, len) BUG()
+#define unmap_hugepage_range(vma, start, end) BUG()
+#define is_hugepage_mem_enough(size) 0
+#define hugetlb_report_meminfo(buf) 0
+#define hugetlb_report_node_meminfo(n, buf) 0
+#define follow_huge_pmd(mm, addr, pmd, write) NULL
+#define is_aligned_hugepage_range(addr, len) 0
+#define prepare_hugepage_range(addr, len) (-EINVAL)
+#define pmd_huge(x) 0
+#define is_hugepage_only_range(mm, addr, len) 0
+#define hugetlb_free_pgtables(tlb, prev, start, end) do { } while (0)
+#define alloc_huge_page() ({ NULL; })
+#define free_huge_page(p) ({ (void)(p); BUG(); })
+
+#ifndef HPAGE_MASK
+#define HPAGE_MASK 0 /* Keep the compiler happy */
+#define HPAGE_SIZE 0
+#endif
+
+#endif /* !CONFIG_HUGETLB_PAGE */
+
+#ifdef CONFIG_HUGETLBFS
+struct hugetlbfs_config {
+ uid_t uid;
+ gid_t gid;
+ umode_t mode;
+ long nr_blocks;
+ long nr_inodes;
+};
+
+struct hugetlbfs_sb_info {
+ long max_blocks; /* blocks allowed */
+ long free_blocks; /* blocks free */
+ long max_inodes; /* inodes allowed */
+ long free_inodes; /* inodes free */
+ spinlock_t stat_lock;
+};
+
+
+struct hugetlbfs_inode_info {
+ struct shared_policy policy;
+ struct inode vfs_inode;
+};
+
+static inline struct hugetlbfs_inode_info *HUGETLBFS_I(struct inode *inode)
+{
+ return container_of(inode, struct hugetlbfs_inode_info, vfs_inode);
+}
+
+static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
+extern struct file_operations hugetlbfs_file_operations;
+extern struct vm_operations_struct hugetlb_vm_ops;
+struct file *hugetlb_zero_setup(size_t);
+int hugetlb_get_quota(struct address_space *mapping);
+void hugetlb_put_quota(struct address_space *mapping);
+
+static inline int is_file_hugepages(struct file *file)
+{
+ return file->f_op == &hugetlbfs_file_operations;
+}
+
+static inline void set_file_hugepages(struct file *file)
+{
+ file->f_op = &hugetlbfs_file_operations;
+}
+#else /* !CONFIG_HUGETLBFS */
+
+#define is_file_hugepages(file) 0
+#define set_file_hugepages(file) BUG()
+#define hugetlb_zero_setup(size) ERR_PTR(-ENOSYS)
+
+#endif /* !CONFIG_HUGETLBFS */
+
+#endif /* _LINUX_HUGETLB_H */