core/linux/aufs3-base.patch

aufs3.12 base patch

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 40e7155..6e43ab0 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -691,6 +691,24 @@ static inline int is_loop_device(struct file *file)
 	return i && S_ISBLK(i->i_mode) && MAJOR(i->i_rdev) == LOOP_MAJOR;
 }
 
+/*
+ * for AUFS
+ * no get/put for file.
+ */
+struct file *loop_backing_file(struct super_block *sb)
+{
+	struct file *ret;
+	struct loop_device *l;
+
+	ret = NULL;
+	if (MAJOR(sb->s_dev) == LOOP_MAJOR) {
+		l = sb->s_bdev->bd_disk->private_data;
+		ret = l->lo_backing_file;
+	}
+	return ret;
+}
+EXPORT_SYMBOL(loop_backing_file);
+
 /* loop sysfs attributes */
 
 static ssize_t loop_attr_show(struct device *dev, char *page,
diff --git a/fs/file_table.c b/fs/file_table.c
index e900ca5..ccd02ee 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -36,7 +36,7 @@ struct files_stat_struct files_stat = {
 	.max_files = NR_FILE
 };
 
-DEFINE_STATIC_LGLOCK(files_lglock);
+DEFINE_LGLOCK(files_lglock);
 
 /* SLAB cache for file structures */
 static struct kmem_cache *filp_cachep __read_mostly;
@@ -360,7 +360,7 @@ static inline int file_list_cpu(struct file *file)
 }
 
 /* helper for file_sb_list_add to reduce ifdefs */
-static inline void __file_sb_list_add(struct file *file, struct super_block *sb)
+inline void __file_sb_list_add(struct file *file, struct super_block *sb)
 {
 	struct list_head *list;
 #ifdef CONFIG_SMP
@@ -373,6 +373,7 @@ static inline void __file_sb_list_add(struct file *file, struct super_block *sb)
 #endif
 	list_add(&file->f_u.fu_list, list);
 }
+EXPORT_SYMBOL(__file_sb_list_add);
 
 /**
  * file_sb_list_add - add a file to the sb's file list
diff --git a/fs/inode.c b/fs/inode.c
index b33ba8e..9b24434 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1469,7 +1469,7 @@ static int relatime_need_update(struct vfsmount *mnt, struct inode *inode,
  * This does the actual work of updating an inodes time or version.  Must have
  * had called mnt_want_write() before calling this.
  */
-static int update_time(struct inode *inode, struct timespec *time, int flags)
+int update_time(struct inode *inode, struct timespec *time, int flags)
 {
 	if (inode->i_op->update_time)
 		return inode->i_op->update_time(inode, time, flags);
diff --git a/fs/splice.c b/fs/splice.c
index 3b7ee65..e147583 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1093,8 +1093,8 @@ EXPORT_SYMBOL(generic_splice_sendpage);
 /*
  * Attempt to initiate a splice from pipe to file.
  */
-static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
-			   loff_t *ppos, size_t len, unsigned int flags)
+long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+		    loff_t *ppos, size_t len, unsigned int flags)
 {
 	ssize_t (*splice_write)(struct pipe_inode_info *, struct file *,
 				loff_t *, size_t, unsigned int);
@@ -1110,9 +1110,9 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
 /*
  * Attempt to initiate a splice from a file to a pipe.
  */
-static long do_splice_to(struct file *in, loff_t *ppos,
-			 struct pipe_inode_info *pipe, size_t len,
-			 unsigned int flags)
+long do_splice_to(struct file *in, loff_t *ppos,
+		  struct pipe_inode_info *pipe, size_t len,
+		  unsigned int flags)
 {
 	ssize_t (*splice_read)(struct file *, loff_t *,
 			       struct pipe_inode_info *, size_t, unsigned int);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3f40547..36b235e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2594,6 +2594,7 @@ extern int inode_change_ok(const struct inode *, struct iattr *);
 extern int inode_newsize_ok(const struct inode *, loff_t offset);
 extern void setattr_copy(struct inode *inode, const struct iattr *attr);
 
+extern int update_time(struct inode *, struct timespec *, int);
 extern int file_update_time(struct file *file);
 
 extern int generic_show_options(struct seq_file *m, struct dentry *root);
diff --git a/include/linux/splice.h b/include/linux/splice.h
index 74575cb..bfc6fb6 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -92,4 +92,10 @@ extern void splice_shrink_spd(struct splice_pipe_desc *);
 extern void spd_release_page(struct splice_pipe_desc *, unsigned int);
 
 extern const struct pipe_buf_operations page_cache_pipe_buf_ops;
+
+extern long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+			   loff_t *ppos, size_t len, unsigned int flags);
+extern long do_splice_to(struct file *in, loff_t *ppos,
+			 struct pipe_inode_info *pipe, size_t len,
+			 unsigned int flags);
 #endif