diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/mtd/ubi-user.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/uapi/mtd/ubi-user.h b/include/uapi/mtd/ubi-user.h index aa872a41ffb9..3538e11b5175 100644 --- a/include/uapi/mtd/ubi-user.h +++ b/include/uapi/mtd/ubi-user.h @@ -289,6 +289,13 @@ enum { * If @disable_fm is not zero, ubi doesn't create new fastmap even the module * param 'fm_autoconvert' is set, and existed old fastmap will be destroyed * after doing full scanning. + * + * The @wl_threshold defines the maximum difference between the highest and the + * lowest erase counter value of eraseblocks of this UBI device. When this + * threshold is exceeded, UBI starts performing wear leveling by means of + * moving data from eraseblock with low erase counter to eraseblocks with high + * erase counter. If @wl_threshold is zero, the default kernel value of + * %CONFIG_MTD_UBI_WL_THRESHOLD is used. The accepted range is 2-65536. */ struct ubi_attach_req { __s32 ubi_num; @@ -297,7 +304,8 @@ struct ubi_attach_req { __s16 max_beb_per1024; __s8 disable_fm; __s8 need_resv_pool; - __s8 padding[8]; + __s32 wl_threshold; + __s8 padding[4]; }; /* |