3 Aug
2018
3 Aug
'18
11:28 p.m.
On Fri, 3 Aug 2018 11:51:43 +0900 Minchan Kim minchan@kernel.org wrote:
Is it legitimate to be altering the bdi capabilities at this level? Or is this hacky?
Most of device's bdi capability seems to be static but there are few drivers which can change capability. For example, BDI_CAP_STABLE_WRITES
drivers/scsi/iscsi_tcp.c drivers/md/raid5.c
I believe it's driver itself advertisement stuff so I hope it's not hack.
The bdi is per-disk (per-queue). So if zram changes the bdi for a particular partition then it is accidentally mucking with the other partitions as well, and it shouldn't do that. At least, I think that's how it works - it's been a while. Jens, wake up ;)