• Yufen Yu's avatar
    md/raid5: support config stripe_size by sysfs entry · 3b5408b9
    Yufen Yu authored
    Adding a new 'stripe_size' sysfs entry to set and show stripe_size.
    stripe_size should not be bigger than PAGE_SIZE, and it requires to
    be multiple of 4096. We can adjust stripe_size by writing value into
    sysfs entry, likely, set stripe_size as 16KB:
    
              echo 16384 > /sys/block/md1/md/stripe_size
    
    Show current stripe_size value:
    
              cat /sys/block/md1/md/stripe_size
    
    For PAGE_SIZE is equal to 4096, 'stripe_size' can just be read.
    Signed-off-by: default avatarYufen Yu <yuyufen@huawei.com>
    Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
    3b5408b9
raid5.c 243 KB