Created
January 11, 2016 15:55
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Display block count of eMMC/SD card for linux 4.4
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| # mmc: Display media block count | |
| # | |
| # linux-4.4 | |
| --- a/drivers/mmc/card/block.c | |
| +++ b/drivers/mmc/card/block.c | |
| @@ -2549,6 +2549,7 @@ | |
| static int mmc_blk_probe(struct mmc_card *card) | |
| { | |
| struct mmc_blk_data *md, *part_md; | |
| + sector_t capacity; | |
| char cap_str[10]; | |
| /* | |
| @@ -2563,11 +2564,12 @@ | |
| if (IS_ERR(md)) | |
| return PTR_ERR(md); | |
| - string_get_size((u64)get_capacity(md->disk), 512, STRING_UNITS_2, | |
| + capacity = get_capacity(md->disk); | |
| + string_get_size((u64)capacity, 512, STRING_UNITS_2, | |
| cap_str, sizeof(cap_str)); | |
| - pr_info("%s: %s %s %s %s\n", | |
| + pr_info("%s: %s '%s' %llu 512-byte logical blocks: %s %s\n", | |
| md->disk->disk_name, mmc_card_id(card), mmc_card_name(card), | |
| - cap_str, md->read_only ? "(ro)" : ""); | |
| + capacity, cap_str, md->read_only ? "(ro)" : ""); | |
| if (mmc_blk_alloc_parts(card, md)) | |
| goto out; |
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(2017-03-12) This is available until linux 4.9.x.
Official kernel does not display accurate block count - only GB/MB size.
This patch display block count like HDD or USB storage.