[PATCH] Simplify ramfs_getattr() and move it to the generic libfs.c

This moves ramfs_getattr() to fs/libfs.c as simple_getattr()

fs/libfs.c

@@ -6,6 +6,15 @@
 #include <linux/pagemap.h>
 #include <linux/smp_lock.h>
 
+int simple_getattr(struct vfsmount *mnt, struct dentry *dentry,
+		   struct kstat *stat)
+{
+	struct inode *inode = dentry->d_inode;
+	generic_fillattr(inode, stat);
+	stat->blocks = inode->i_mapping->nrpages << (PAGE_CACHE_SHIFT - 9);
+	return 0;
+}
+
 int simple_statfs(struct super_block *sb, struct statfs *buf)
 {
 	buf->f_type = sb->s_magic;

fs/ramfs/inode.c

@@ -116,28 +116,6 @@ static int ramfs_create(struct inode *dir, struct dentry *dentry, int mode)
 	return ramfs_mknod(dir, dentry, mode | S_IFREG, 0);
 }
 
-static int ramfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
-			 struct kstat *stat)
-{
-	struct inode *inode = dentry->d_inode;
-
-	stat->dev = inode->i_sb->s_dev;
-	stat->ino = inode->i_ino;
-	stat->mode = inode->i_mode;
-	stat->nlink = inode->i_nlink;
-	stat->uid = inode->i_uid;
-	stat->gid = inode->i_gid;
-	stat->rdev = kdev_t_to_nr(inode->i_rdev);
-	stat->atime = inode->i_atime;
-	stat->mtime = inode->i_mtime;
-	stat->ctime = inode->i_ctime;
-	stat->size = inode->i_size;
-	stat->blocks = inode->i_mapping->nrpages << (PAGE_CACHE_SHIFT - 9);
-	stat->blksize = inode->i_blksize;
-
-	return 0;
-}
-
 static int ramfs_symlink(struct inode * dir, struct dentry *dentry, const char * symname)
 {
 	struct inode *inode;
@@ -171,7 +149,7 @@ static struct file_operations ramfs_file_operations = {
 };
 
 static struct inode_operations ramfs_file_inode_operations = {
-	.getattr	= ramfs_getattr,
+	.getattr	= simple_getattr,
 };
 
 static struct inode_operations ramfs_dir_inode_operations = {

include/linux/fs.h

@@ -1300,6 +1300,7 @@ extern int dcache_dir_open(struct inode *, struct file *);
 extern int dcache_dir_close(struct inode *, struct file *);
 extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
 extern int dcache_readdir(struct file *, void *, filldir_t);
+extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 extern int simple_statfs(struct super_block *, struct statfs *);
 extern int simple_link(struct dentry *, struct inode *, struct dentry *);
 extern int simple_unlink(struct inode *, struct dentry *);

kernel/ksyms.c

@@ -299,6 +299,7 @@ EXPORT_SYMBOL(dcache_dir_open);
 EXPORT_SYMBOL(dcache_dir_close);
 EXPORT_SYMBOL(dcache_dir_lseek);
 EXPORT_SYMBOL(dcache_readdir);
+EXPORT_SYMBOL(simple_getattr);
 EXPORT_SYMBOL(simple_statfs);
 EXPORT_SYMBOL(simple_lookup);
 EXPORT_SYMBOL(simple_dir_operations);