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authorRichard Genoud <richard.genoud@gmail.com>2012-08-20 18:00:15 +0200
committerArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-09-04 09:39:01 +0300
commitdb7e21c21f293d52f5363fe8d9ee91d6bd0a503a (patch)
tree8d2ac3f6988dabc4cd418f3ff08385972204a753 /drivers/mtd/ubi
parentedac493dfb48fe46d43fe6afabb8cfb2d1d4c048 (diff)
downloadop-kernel-dev-db7e21c21f293d52f5363fe8d9ee91d6bd0a503a.zip
op-kernel-dev-db7e21c21f293d52f5363fe8d9ee91d6bd0a503a.tar.gz
UBI: add max_beb_per1024 to attach ioctl
This patch provides a possibility to set the "maximum expected number of bad blocks per 1024 blocks" (max_beb_per1024) for each mtd device using the UBI_IOCATT ioctl. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'drivers/mtd/ubi')
-rw-r--r--drivers/mtd/ubi/Kconfig3
-rw-r--r--drivers/mtd/ubi/cdev.c2
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig
index 3e185e4..271a842 100644
--- a/drivers/mtd/ubi/Kconfig
+++ b/drivers/mtd/ubi/Kconfig
@@ -51,7 +51,8 @@ config MTD_UBI_BEB_LIMIT
MTD partitions of the same size, UBI will reserve 40 eraseblocks when
attaching a partition.
- This option can be overridden by the "mtd=" UBI module parameter.
+ This option can be overridden by the "mtd=" UBI module parameter or
+ by the "attach" ioctl.
Leave the default value if unsure.
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 619f914..7885dc0 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -1011,7 +1011,7 @@ static long ctrl_cdev_ioctl(struct file *file, unsigned int cmd,
*/
mutex_lock(&ubi_devices_mutex);
err = ubi_attach_mtd_dev(mtd, req.ubi_num, req.vid_hdr_offset,
- CONFIG_MTD_UBI_BEB_LIMIT);
+ req.max_beb_per1024);
mutex_unlock(&ubi_devices_mutex);
if (err < 0)
put_mtd_device(mtd);
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