Re: [PATCH md-6.13] md: remove bitmap file support

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Hi,

在 2024/11/08 9:28, Song Liu 写道:
On Thu, Nov 7, 2024 at 5:03 PM Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote:

Hi,

在 2024/11/08 7:41, Song Liu 写道:
On Thu, Nov 7, 2024 at 5:02 AM Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote:

From: Yu Kuai <yukuai3@xxxxxxxxxx>

The bitmap file has been marked as deprecated for more than a year now,
let's remove it, and we don't need to care about this case in the new
bitmap.

Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>

What happens when an old array with bitmap file boots into a kernel
without bitmap file support?

If mdadm is used with bitmap file support, then kenel will just ignore
the bitmap, the same as none bitmap. Perhaps it's better to leave a
error message?

Yes, we should print some error message before assembling the array.

OK

And if mdadm is updated, reassemble will fail.

I think we should ship this with 6.14 (not 6.13), so that we have
more time testing different combinations of old/new mdadm
and kernel. WDYT?

Agreed!

Thanks,
Kuai


Thanks,
Song
.






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