mm: migrate: support non-lru movable page migration

[deliverable/linux.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9ace7f745bcdeef15b7b3e7beed2ed8b18bb991e..97fe08d17d890d88b597841bf19d0c912a21d04e 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -402,6 +402,8 @@ struct address_space_operations {
         */
        int (*migratepage) (struct address_space *,
                        struct page *, struct page *, enum migrate_mode);
+       bool (*isolate_page)(struct page *, isolate_mode_t);
+       void (*putback_page)(struct page *);
        int (*launder_page) (struct page *);
        int (*is_partially_uptodate) (struct page *, unsigned long,
                                        unsigned long);
@@ -665,6 +667,7 @@ struct inode {
 #endif
        struct list_head        i_lru;          /* inode LRU list */
        struct list_head        i_sb_list;
+       struct list_head        i_wb_list;      /* backing dev writeback list */
        union {
                struct hlist_head       i_dentry;
                struct rcu_head         i_rcu;
@@ -1448,6 +1451,9 @@ struct super_block {
        /* s_inode_list_lock protects s_inodes */
        spinlock_t              s_inode_list_lock ____cacheline_aligned_in_smp;
        struct list_head        s_inodes;       /* all inodes */
+
+       spinlock_t              s_inode_wblist_lock;
+       struct list_head        s_inodes_wb;    /* writeback inodes */
 };
 
 extern struct timespec current_fs_time(struct super_block *sb);
@@ -1729,7 +1735,8 @@ struct inode_operations {
                        struct inode *, struct dentry *, unsigned int);
        int (*setattr) (struct dentry *, struct iattr *);
        int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
-       int (*setxattr) (struct dentry *, const char *,const void *,size_t,int);
+       int (*setxattr) (struct dentry *, struct inode *,
+                        const char *, const void *, size_t, int);
        ssize_t (*getxattr) (struct dentry *, struct inode *,
                             const char *, void *, size_t);
        ssize_t (*listxattr) (struct dentry *, char *, size_t);