kernel: backport the ubiblock patches from 3.14->3.10

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 41120

1 files changed, 92 insertions, 0 deletions

diff --git a/target/linux/generic/patches-3.10/044-UBI-rename-block-device-ioctls.patch b/target/linux/generic/patches-3.10/044-UBI-rename-block-device-ioctls.patch
new file mode 100644
index 0000000000..a010a3cf4a
--- /dev/null
+++ b/target/linux/generic/patches-3.10/044-UBI-rename-block-device-ioctls.patch
@@ -0,0 +1,92 @@
+From 8af871887fcba470ff9265c65cff7d14d9e0e3f9 Mon Sep 17 00:00:00 2001
+From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
+Date: Wed, 5 Mar 2014 13:01:56 +0200
+Subject: [PATCH] UBI: rename block device ioctls
+
+Rename the UBI_IOCVOLATTBLK and UBI_IOCVOLDETBLK to UBI_IOCVOLCRBLK and
+UBI_IOCVOLRMBLK, because we do not use terms "attach" and "detach" for the R/O
+block devices on top of UBI volumes. Instead, we use terms "create" and
+"remove". This patch also amends the related commentaries.
+
+Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
+Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
+---
+ drivers/mtd/ubi/block.c     |  2 +-
+ drivers/mtd/ubi/cdev.c      |  8 ++++----
+ include/uapi/mtd/ubi-user.h | 14 +++++++-------
+ 3 files changed, 12 insertions(+), 12 deletions(-)
+
+diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c
+index 16e6731..69a74fd 100644
+--- a/drivers/mtd/ubi/block.c
++++ b/drivers/mtd/ubi/block.c
+@@ -32,7 +32,7 @@
+  * This feature is compiled in the UBI core, and adds a 'block' parameter
+  * to allow early creation of block devices on top of UBI volumes. Runtime
+  * block creation/removal for UBI volumes is provided through two UBI ioctls:
+- * UBI_IOCVOLATTBLK and UBI_IOCVOLDETBLK.
++ * UBI_IOCVOLCRBLK and UBI_IOCVOLRMBLK.
+  */
+ 
+ #include <linux/module.h>
+diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
+index 11c8473..f54562a 100644
+--- a/drivers/mtd/ubi/cdev.c
++++ b/drivers/mtd/ubi/cdev.c
+@@ -561,8 +561,8 @@ static long vol_cdev_ioctl(struct file *file, unsigned int cmd,
+ 		break;
+ 	}
+ 
+-	/* Attach a block device to an UBI volume */
+-	case UBI_IOCVOLATTBLK:
++	/* Create a R/O block device on top of the UBI volume */
++	case UBI_IOCVOLCRBLK:
+ 	{
+ 		struct ubi_volume_info vi;
+ 
+@@ -571,8 +571,8 @@ static long vol_cdev_ioctl(struct file *file, unsigned int cmd,
+ 		break;
+ 	}
+ 
+-	/* Dettach a block device from an UBI volume */
+-	case UBI_IOCVOLDETBLK:
++	/* Remove the R/O block device */
++	case UBI_IOCVOLRMBLK:
+ 	{
+ 		struct ubi_volume_info vi;
+ 
+diff --git a/include/uapi/mtd/ubi-user.h b/include/uapi/mtd/ubi-user.h
+index b98585a..9c885e2 100644
+--- a/include/uapi/mtd/ubi-user.h
++++ b/include/uapi/mtd/ubi-user.h
+@@ -138,9 +138,9 @@
+  * Block devices on UBI volumes
+  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  *
+- * To attach or detach a block device from an UBI volume the %UBI_IOCVOLATTBLK
+- * and %UBI_IOCVOLDETBLK ioctl commands should be used, respectively.
+- * These commands take no arguments.
++ * To create or remove a R/O block device on top of an UBI volume the
++ * %UBI_IOCVOLCRBLK and %UBI_IOCVOLRMBLK ioctl commands should be used,
++ * respectively. These commands take no arguments.
+  */
+ 
+ /*
+@@ -198,10 +198,10 @@
+ /* Set an UBI volume property */
+ #define UBI_IOCSETVOLPROP _IOW(UBI_VOL_IOC_MAGIC, 6, \
+ 			       struct ubi_set_vol_prop_req)
+-/* Attach a block device to an UBI volume */
+-#define UBI_IOCVOLATTBLK _IO(UBI_VOL_IOC_MAGIC, 7)
+-/* Detach a block device from an UBI volume */
+-#define UBI_IOCVOLDETBLK _IO(UBI_VOL_IOC_MAGIC, 8)
++/* Create a R/O block device on top of an UBI volume */
++#define UBI_IOCVOLCRBLK _IO(UBI_VOL_IOC_MAGIC, 7)
++/* Remove the R/O block device */
++#define UBI_IOCVOLRMBLK _IO(UBI_VOL_IOC_MAGIC, 8)
+ 
+ /* Maximum MTD device name length supported by UBI */
+ #define MAX_UBI_MTD_NAME_LEN 127
+-- 
+1.9.2
+