Hi Xiao, On Thu, Dec 24, 2020 at 2:18 AM Xiao Ni <xni@xxxxxxxxxx> wrote: > > > [...] > > [ 789.709501] discard bio start : 70968, size : 191176 > [ 789.709507] first stripe index 69, start disk index 0, start disk > offset 70968 > [ 789.709509] last stripe index 256, end disk index 0, end disk offset > 262144 > [ 789.709511] disk 0, dev start : 70968, dev end : 262144 > [ 789.709515] disk 1, dev start : 70656, dev end : 262144 > > For example, in this test case, it has 2 near copies. The > start_disk_offset for the first disk is 70968. > It should use the same offset address for second disk. But it uses the > start address of this chunk. > It discard more region. The patch in the attachment can fix this > problem. It split the region that > doesn't align with chunk size. > > There is another problem. The stripe size should be calculated > differently for near layout and far layout. > > @Song, do you want me to use a separate patch for this fix, or fix this > in the original patch? Please fold in the changes in the original patches and resend the whole set. Thanks, Song > > Merry Christmas > Xiao >
