diff options
| author | Damien Le Moal <damien.lemoal@wdc.com> | 2019-01-30 16:07:34 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-04 22:07:24 -0500 |
| commit | d7e6db20944c8fb26073bc3ba9d5328992b82858 (patch) | |
| tree | 2fcc6f26bb7b30d006713d8129c3b5ee26d0ac9c | |
| parent | 27752647f88a1b03019e03f21f32b60452af7d4b (diff) | |
| download | linux-d7e6db20944c8fb26073bc3ba9d5328992b82858.tar.bz2 | |
scsi: sd: Improve sd_print_capacity()
There is no need to call twice string_get_size() when the capacity messages
are not going to be printed. Reverse the message output condition to return
early and avoid executing string_get_size() when it is not necessary.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/sd.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 4fbb8310e268..3db9b1fe7516 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2565,25 +2565,25 @@ sd_print_capacity(struct scsi_disk *sdkp, int sector_size = sdkp->device->sector_size; char cap_str_2[10], cap_str_10[10]; + if (!sdkp->first_scan && old_capacity == sdkp->capacity) + return; + string_get_size(sdkp->capacity, sector_size, STRING_UNITS_2, cap_str_2, sizeof(cap_str_2)); string_get_size(sdkp->capacity, sector_size, - STRING_UNITS_10, cap_str_10, - sizeof(cap_str_10)); + STRING_UNITS_10, cap_str_10, sizeof(cap_str_10)); - if (sdkp->first_scan || old_capacity != sdkp->capacity) { - sd_printk(KERN_NOTICE, sdkp, - "%llu %d-byte logical blocks: (%s/%s)\n", - (unsigned long long)sdkp->capacity, - sector_size, cap_str_10, cap_str_2); + sd_printk(KERN_NOTICE, sdkp, + "%llu %d-byte logical blocks: (%s/%s)\n", + (unsigned long long)sdkp->capacity, + sector_size, cap_str_10, cap_str_2); - if (sdkp->physical_block_size != sector_size) - sd_printk(KERN_NOTICE, sdkp, - "%u-byte physical blocks\n", - sdkp->physical_block_size); + if (sdkp->physical_block_size != sector_size) + sd_printk(KERN_NOTICE, sdkp, + "%u-byte physical blocks\n", + sdkp->physical_block_size); - sd_zbc_print_zones(sdkp); - } + sd_zbc_print_zones(sdkp); } /* called with buffer of length 512 */ |