| Message ID | 20241011092134.2909496-2-rickard.andersson@axis.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,01/10] ubi: Expose mean erase counter in sysfs | expand |
在 2024/10/11 17:21, Rickard Andersson 写道: > Since the fastmap area has its own wear levelling it is valuable to > provide a mean value for that area. This value can be used in order > to estimate life expectancy of the flash. > > Signed-off-by: Rickard Andersson <rickard.andersson@axis.com> > --- > drivers/mtd/ubi/build.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> > diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c > index fa38c434e447..3633c743e7d1 100644 > --- a/drivers/mtd/ubi/build.c > +++ b/drivers/mtd/ubi/build.c > @@ -133,6 +133,10 @@ static struct device_attribute dev_max_ec = > __ATTR(max_ec, S_IRUGO, dev_attribute_show, NULL); > static struct device_attribute dev_mean_ec = > __ATTR(mean_ec, S_IRUGO, dev_attribute_show, NULL); > +#ifdef CONFIG_MTD_UBI_FASTMAP > +static struct device_attribute dev_mean_ec_fastmap = > + __ATTR(mean_ec_fastmap, S_IRUGO, dev_attribute_show, NULL); > +#endif > static struct device_attribute dev_reserved_for_bad = > __ATTR(reserved_for_bad, S_IRUGO, dev_attribute_show, NULL); > static struct device_attribute dev_bad_peb_count = > @@ -413,6 +417,10 @@ static ssize_t dev_attribute_show(struct device *dev, > ret = sprintf(buf, "%d\n", ubi->max_ec); > else if (attr == &dev_mean_ec) > ret = sprintf(buf, "%d\n", ubi_calc_mean_ec(ubi, 0, ubi->peb_count)); > +#ifdef CONFIG_MTD_UBI_FASTMAP > + else if (attr == &dev_mean_ec_fastmap) > + ret = sprintf(buf, "%d\n", ubi_calc_mean_ec(ubi, 0, UBI_FM_MAX_START)); > +#endif > else if (attr == &dev_reserved_for_bad) > ret = sprintf(buf, "%d\n", ubi->beb_rsvd_pebs); > else if (attr == &dev_bad_peb_count) > @@ -440,6 +448,9 @@ static struct attribute *ubi_dev_attrs[] = { > &dev_volumes_count.attr, > &dev_max_ec.attr, > &dev_mean_ec.attr, > +#ifdef CONFIG_MTD_UBI_FASTMAP > + &dev_mean_ec_fastmap.attr, > +#endif > &dev_reserved_for_bad.attr, > &dev_bad_peb_count.attr, > &dev_max_vol_count.attr, >
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index fa38c434e447..3633c743e7d1 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -133,6 +133,10 @@ static struct device_attribute dev_max_ec = __ATTR(max_ec, S_IRUGO, dev_attribute_show, NULL); static struct device_attribute dev_mean_ec = __ATTR(mean_ec, S_IRUGO, dev_attribute_show, NULL); +#ifdef CONFIG_MTD_UBI_FASTMAP +static struct device_attribute dev_mean_ec_fastmap = + __ATTR(mean_ec_fastmap, S_IRUGO, dev_attribute_show, NULL); +#endif static struct device_attribute dev_reserved_for_bad = __ATTR(reserved_for_bad, S_IRUGO, dev_attribute_show, NULL); static struct device_attribute dev_bad_peb_count = @@ -413,6 +417,10 @@ static ssize_t dev_attribute_show(struct device *dev, ret = sprintf(buf, "%d\n", ubi->max_ec); else if (attr == &dev_mean_ec) ret = sprintf(buf, "%d\n", ubi_calc_mean_ec(ubi, 0, ubi->peb_count)); +#ifdef CONFIG_MTD_UBI_FASTMAP + else if (attr == &dev_mean_ec_fastmap) + ret = sprintf(buf, "%d\n", ubi_calc_mean_ec(ubi, 0, UBI_FM_MAX_START)); +#endif else if (attr == &dev_reserved_for_bad) ret = sprintf(buf, "%d\n", ubi->beb_rsvd_pebs); else if (attr == &dev_bad_peb_count) @@ -440,6 +448,9 @@ static struct attribute *ubi_dev_attrs[] = { &dev_volumes_count.attr, &dev_max_ec.attr, &dev_mean_ec.attr, +#ifdef CONFIG_MTD_UBI_FASTMAP + &dev_mean_ec_fastmap.attr, +#endif &dev_reserved_for_bad.attr, &dev_bad_peb_count.attr, &dev_max_vol_count.attr,
Since the fastmap area has its own wear levelling it is valuable to provide a mean value for that area. This value can be used in order to estimate life expectancy of the flash. Signed-off-by: Rickard Andersson <rickard.andersson@axis.com> --- drivers/mtd/ubi/build.c | 11 +++++++++++ 1 file changed, 11 insertions(+)