Linux v3.12-9888-gf63c482

1 files changed, 0 insertions, 64 deletions

diff --git a/Input-evdev-fall-back-to-vmalloc-for-client-event-buffer.patch b/Input-evdev-fall-back-to-vmalloc-for-client-event-buffer.patch
deleted file mode 100644
index da1b92ed8..000000000
--- a/Input-evdev-fall-back-to-vmalloc-for-client-event-buffer.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-From 92eb77d0ffbaa71b501a0a8dabf09a351bf4267f Mon Sep 17 00:00:00 2001
-From: Daniel Stone <daniel@fooishbar.org>
-Date: Thu, 31 Oct 2013 07:25:34 +0000
-Subject: Input: evdev - fall back to vmalloc for client event buffer
-
-evdev always tries to allocate the event buffer for clients using
-kzalloc rather than vmalloc, presumably to avoid mapping overhead where
-possible.  However, drivers like bcm5974, which claims support for
-reporting 16 fingers simultaneously, can have an extraordinarily large
-buffer.  The resultant contiguous order-4 allocation attempt fails due
-to fragmentation, and the device is thus unusable until reboot.
-
-Try kzalloc if we can to avoid the mapping overhead, but if that fails,
-fall back to vzalloc.
-
-Signed-off-by: Daniel Stone <daniels@collabora.com>
-Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
----
-diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
-index b6ded17..a06e125 100644
---- a/drivers/input/evdev.c
-+++ b/drivers/input/evdev.c
-@@ -18,6 +18,8 @@
- #include <linux/poll.h>
- #include <linux/sched.h>
- #include <linux/slab.h>
-+#include <linux/vmalloc.h>
-+#include <linux/mm.h>
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/input/mt.h>
-@@ -369,7 +371,11 @@ static int evdev_release(struct inode *inode, struct file *file)
- 	mutex_unlock(&evdev->mutex);
- 
- 	evdev_detach_client(evdev, client);
--	kfree(client);
-+
-+	if (is_vmalloc_addr(client))
-+		vfree(client);
-+	else
-+		kfree(client);
- 
- 	evdev_close_device(evdev);
- 
-@@ -389,12 +395,14 @@ static int evdev_open(struct inode *inode, struct file *file)
- {
- 	struct evdev *evdev = container_of(inode->i_cdev, struct evdev, cdev);
- 	unsigned int bufsize = evdev_compute_buffer_size(evdev->handle.dev);
-+	unsigned int size = sizeof(struct evdev_client) +
-+					bufsize * sizeof(struct input_event);
- 	struct evdev_client *client;
- 	int error;
- 
--	client = kzalloc(sizeof(struct evdev_client) +
--				bufsize * sizeof(struct input_event),
--			 GFP_KERNEL);
-+	client = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
-+	if (!client)
-+		client = vzalloc(size);
- 	if (!client)
- 		return -ENOMEM;
- 
---
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