summaryrefslogtreecommitdiff
path: root/drivers/video/fb_defio.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/video/fb_defio.c')
-rw-r--r--drivers/video/fb_defio.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
index c27e153d8882..070f26f0bf99 100644
--- a/drivers/video/fb_defio.c
+++ b/drivers/video/fb_defio.c
@@ -107,6 +107,10 @@ static int fb_deferred_io_mkwrite(struct vm_area_struct *vma,
/* protect against the workqueue changing the page list */
mutex_lock(&fbdefio->lock);
+ /* first write in this cycle, notify the driver */
+ if (fbdefio->first_io && list_empty(&fbdefio->pagelist))
+ fbdefio->first_io(info);
+
/*
* We want the page to remain locked from ->page_mkwrite until
* the PTE is marked dirty to avoid page_mkclean() being called