On Tue, Dec 17, 2019 at 02:56:20PM -0500, Josef Bacik wrote:
On 12/12/19 11:09 PM, Naohiro Aota wrote:
Placing both data and metadata in a block group is impossible in HMZONED
mode. For data, we can allocate a space for it and write it immediately
after the allocation. For metadata, however, we cannot do so, because the
logical addresses are recorded in other metadata buffers to build up the
trees. As a result, a data buffer can be placed after a metadata buffer,
which is not written yet. Writing out the data buffer will break the
sequential write rule.
This commit check and disallow MIXED_BG with HMZONED mode.
Signed-off-by: Naohiro Aota <naohiro.aota@xxxxxxx>
I would prefer it if you did all of the weird disallows early on so
it's clear as I go through that I don't have to think about certain
cases. I remembered from a previous look through that mixed_bg's were
disallowed, but I had to go look for some other cases.
Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Thanks,
Josef
Sure, I will sort these patches after the other disallow patches.
Thanks,
