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path: root/drivers/video/fb_defio.c
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Diffstat (limited to 'drivers/video/fb_defio.c')
-rw-r--r--drivers/video/fb_defio.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
index 804000183c5..32814e8800e 100644
--- a/drivers/video/fb_defio.c
+++ b/drivers/video/fb_defio.c
@@ -66,19 +66,26 @@ static int fb_deferred_io_fault(struct vm_area_struct *vma,
return 0;
}
-int fb_deferred_io_fsync(struct file *file, int datasync)
+int fb_deferred_io_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
struct fb_info *info = file->private_data;
+ struct inode *inode = file->f_path.dentry->d_inode;
+ int err = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (err)
+ return err;
/* Skip if deferred io is compiled-in but disabled on this fbdev */
if (!info->fbdefio)
return 0;
+ mutex_lock(&inode->i_mutex);
/* Kill off the delayed work */
cancel_delayed_work_sync(&info->deferred_work);
/* Run it immediately */
- return schedule_delayed_work(&info->deferred_work, 0);
+ err = schedule_delayed_work(&info->deferred_work, 0);
+ mutex_unlock(&inode->i_mutex);
+ return err;
}
EXPORT_SYMBOL_GPL(fb_deferred_io_fsync);