3 files changed, 20 insertions, 21 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index fb7c11c2c91..f2e285457be 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -166,8 +166,9 @@ cifs_put_super(struct super_block *sb)
 }
 
 static int
-cifs_statfs(struct super_block *sb, struct kstatfs *buf)
+cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
+	struct super_block *sb = dentry->d_sb;
 	int xid; 
 	int rc = -EOPNOTSUPP;
 	struct cifs_sb_info *cifs_sb;
@@ -460,9 +461,9 @@ struct super_operations cifs_super_ops = {
 	.remount_fs = cifs_remount,
 };
 
-static struct super_block *
+static int
 cifs_get_sb(struct file_system_type *fs_type,
-	    int flags, const char *dev_name, void *data)
+	    int flags, const char *dev_name, void *data, struct vfsmount *mnt)
 {
 	int rc;
 	struct super_block *sb = sget(fs_type, NULL, set_anon_super, NULL);
@@ -470,7 +471,7 @@ cifs_get_sb(struct file_system_type *fs_type,
 	cFYI(1, ("Devname: %s flags: %d ", dev_name, flags));
 
 	if (IS_ERR(sb))
-		return sb;
+		return PTR_ERR(sb);
 
 	sb->s_flags = flags;
 
@@ -478,10 +479,10 @@ cifs_get_sb(struct file_system_type *fs_type,
 	if (rc) {
 		up_write(&sb->s_umount);
 		deactivate_super(sb);
-		return ERR_PTR(rc);
+		return rc;
 	}
 	sb->s_flags |= MS_ACTIVE;
-	return sb;
+	return simple_set_mnt(mnt, sb);
 }
 
 static ssize_t cifs_file_writev(struct file *file, const struct iovec *iov,
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 3011df988bd..a6384d83fde 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -75,7 +75,7 @@ extern ssize_t cifs_user_write(struct file *file, const char __user *write_data,
 			 size_t write_size, loff_t * poffset);
 extern int cifs_lock(struct file *, int, struct file_lock *);
 extern int cifs_fsync(struct file *, struct dentry *, int);
-extern int cifs_flush(struct file *);
+extern int cifs_flush(struct file *, fl_owner_t id);
 extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
 extern const struct file_operations cifs_dir_ops;
 extern int cifs_dir_open(struct inode *inode, struct file *file);
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index fafdcdffba6..616b140534b 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1084,9 +1084,9 @@ static int cifs_writepages(struct address_space *mapping,
 	unsigned int bytes_written;
 	struct cifs_sb_info *cifs_sb;
 	int done = 0;
-	pgoff_t end = -1;
+	pgoff_t end;
 	pgoff_t index;
-	int is_range = 0;
+ 	int range_whole = 0;
 	struct kvec iov[32];
 	int len;
 	int n_iov = 0;
@@ -1127,16 +1127,14 @@ static int cifs_writepages(struct address_space *mapping,
 	xid = GetXid();
 
 	pagevec_init(&pvec, 0);
-	if (wbc->sync_mode == WB_SYNC_NONE)
+	if (wbc->range_cyclic) {
 		index = mapping->writeback_index; /* Start from prev offset */
-	else {
-		index = 0;
-		scanned = 1;
-	}
-	if (wbc->start || wbc->end) {
-		index = wbc->start >> PAGE_CACHE_SHIFT;
-		end = wbc->end >> PAGE_CACHE_SHIFT;
-		is_range = 1;
+		end = -1;
+	} else {
+		index = wbc->range_start >> PAGE_CACHE_SHIFT;
+		end = wbc->range_end >> PAGE_CACHE_SHIFT;
+		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
+			range_whole = 1;
 		scanned = 1;
 	}
 retry:
@@ -1172,7 +1170,7 @@ retry:
 				break;
 			}
 
-			if (unlikely(is_range) && (page->index > end)) {
+			if (!wbc->range_cyclic && page->index > end) {
 				done = 1;
 				unlock_page(page);
 				break;
@@ -1276,7 +1274,7 @@ retry:
 		index = 0;
 		goto retry;
 	}
-	if (!is_range)
+	if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
 		mapping->writeback_index = index;
 
 	FreeXid(xid);
@@ -1424,7 +1422,7 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync)
  * As file closes, flush all cached write data for this inode checking
  * for write behind errors.
  */
-int cifs_flush(struct file *file)
+int cifs_flush(struct file *file, fl_owner_t id)
 {
 	struct inode * inode = file->f_dentry->d_inode;
 	int rc = 0;