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ubi: fastmap: Add control in 'UBI_IOCATT' ioctl to reserve PEBs for filling pools

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This patch imports a new field 'need_resv_pool' in struct 'ubi_attach_req'
to control whether or not reserving free PEBs for filling pool/wl_pool.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217787
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Zhihao Cheng 2023-08-28 14:38:45 +08:00 committed by Richard Weinberger
parent d4c48e5b58
commit ac085cfe57
2 changed files with 4 additions and 2 deletions
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2
drivers/mtd/ubi/cdev.c
View File

@ -1042,7 +1042,7 @@ 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,
req.max_beb_per1024, !!req.disable_fm,
false);
!!req.need_resv_pool);
mutex_unlock(&ubi_devices_mutex);
if (err < 0)
put_mtd_device(mtd);

4
include/uapi/mtd/ubi-user.h
View File

@ -248,6 +248,7 @@ enum {
* @max_beb_per1024: maximum expected number of bad PEB per 1024 PEBs
* @padding: reserved for future, not used, has to be zeroed
* @disable_fm: whether disable fastmap
* @need_resv_pool: whether reserve free pebs for filling pool/wl_pool
*
* This data structure is used to specify MTD device UBI has to attach and the
* parameters it has to use. The number which should be assigned to the new UBI
@ -293,7 +294,8 @@ struct ubi_attach_req {
__s32 vid_hdr_offset;
__s16 max_beb_per1024;
__s8 disable_fm;
__s8 padding[9];
__s8 need_resv_pool;
__s8 padding[8];
};
/*