v2.4.7.7 -> v2.4.7.8

  - Jeff Hartmann: serverworks AGP gart unload memory leak fix
  - Marcelo Tosatti: make zone_inactive_shortage() return how big the shortage is.
  - Hugh Dickins: tidy up age_page_down()
  - Al Viro: super block handling cleanups

5 files changed, 12 insertions, 11 deletions

diff --git a/include/asm-ppc/processor.h b/include/asm-ppc/processor.h
index 4c18e818c3a3..03603fa82351 100644
--- a/include/asm-ppc/processor.h
+++ b/include/asm-ppc/processor.h
@@ -631,7 +631,7 @@ struct thread_struct {
 #define INIT_THREAD  { \
 	INIT_SP, /* ksp */ \
 	0, /* wchan */ \
-	(struct pt_regs *)INIT_SP - 1, /* regs */ \
+	0, /* regs */ \
 	KERNEL_DS, /*fs*/ \
 	swapper_pg_dir, /* pgdir */ \
 	0, /* last_syscall */ \
@@ -659,8 +659,8 @@ static inline unsigned long thread_saved_pc(struct thread_struct *t)
 
 unsigned long get_wchan(struct task_struct *p);
 
-#define KSTK_EIP(tsk)  ((tsk)->thread.regs->nip)
-#define KSTK_ESP(tsk)  ((tsk)->thread.regs->gpr[1])
+#define KSTK_EIP(tsk)  ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
+#define KSTK_ESP(tsk)  ((tsk)->thread.regs? (tsk)->thread.regs->gpr[1]: 0)
 
 /*
  * NOTE! The task struct and the stack go together
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a2d4abe3daf6..2512dbe7393b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -61,7 +61,6 @@ struct inodes_stat_t {
 };
 extern struct inodes_stat_t inodes_stat;
 
-extern int max_super_blocks, nr_super_blocks;
 extern int leases_enable, dir_notify_enable, lease_break_time;
 
 #define NR_FILE  8192	/* this can well be larger on a larger system */
@@ -663,6 +662,7 @@ struct quota_mount_options
 #include <linux/cramfs_fs_sb.h>
 
 extern struct list_head super_blocks;
+extern spinlock_t sb_lock;
 
 #define sb_entry(list)	list_entry((list), struct super_block, s_list)
 struct super_block {
@@ -680,13 +680,14 @@ struct super_block {
 	struct dentry		*s_root;
 	struct rw_semaphore	s_umount;
 	struct semaphore	s_lock;
+	int			s_count;
+	atomic_t		s_active;
 
 	struct list_head	s_dirty;	/* dirty inodes */
 	struct list_head	s_locked_inodes;/* inodes being synced */
 	struct list_head	s_files;
 
 	struct block_device	*s_bdev;
-	struct list_head	s_mounts;	/* vfsmount(s) of this one */
 	struct quota_mount_options s_dquot;	/* Diskquota specific options */
 
 	union {
@@ -1161,6 +1162,7 @@ extern void write_inode_now(struct inode *, int);
 extern void sync_dev(kdev_t);
 extern int fsync_dev(kdev_t);
 extern int fsync_super(struct super_block *);
+extern int fsync_no_super(kdev_t);
 extern void sync_inodes_sb(struct super_block *);
 extern int fsync_inode_buffers(struct inode *);
 extern int osync_inode_buffers(struct inode *);
@@ -1358,11 +1360,12 @@ extern int dcache_readdir(struct file *, void *, filldir_t);
 
 extern struct file_system_type *get_fs_type(const char *name);
 extern struct super_block *get_super(kdev_t);
+extern void drop_super(struct super_block *sb);
 static inline int is_mounted(kdev_t dev)
 {
 	struct super_block *sb = get_super(dev);
 	if (sb) {
-		/* drop_super(sb); will go here */
+		drop_super(sb);
 		return 1;
 	}
 	return 0;
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 6d36acbc4c95..2fee6724727a 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -18,7 +18,6 @@ struct vfsmount
 	struct vfsmount *mnt_parent;	/* fs we are mounted on */
 	struct dentry *mnt_mountpoint;	/* dentry of mountpoint */
 	struct dentry *mnt_root;	/* root of the mounted tree */
-	struct list_head mnt_instances;	/* other vfsmounts of the same fs */
 	struct super_block *mnt_sb;	/* pointer to superblock */
 	struct list_head mnt_mounts;	/* list of children, anchored here */
 	struct list_head mnt_child;	/* and going through their mnt_child */
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 47845c644dba..aaa89db79be4 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -72,7 +72,9 @@ static inline unsigned long _page_hashfn(struct address_space * mapping, unsigne
 #define page_hash(mapping,index) (page_hash_table+_page_hashfn(mapping,index))
 
 extern struct page * __find_get_page(struct address_space *mapping,
-				     unsigned long offset, struct page **hash);
+				unsigned long index, struct page **hash);
+#define find_get_page(mapping, index) \
+	__find_get_page(mapping, index, page_hash(mapping, index))
 extern struct page * __find_lock_page (struct address_space * mapping,
 				unsigned long index, struct page **hash);
 extern void lock_page(struct page *page);
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 60e43d5519b0..1d4b0a07d285 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -100,9 +100,6 @@ struct zone_t;
 
 /* linux/mm/swap.c */
 extern int memory_pressure;
-extern void age_page_down(struct page *);
-extern void age_page_down_nolock(struct page *);
-extern void age_page_down_ageonly(struct page *);
 extern void deactivate_page(struct page *);
 extern void deactivate_page_nolock(struct page *);
 extern void activate_page(struct page *);