在 2022/9/23 22:28, Kevin Wolf 写道:
Am 23.09.2022 um 12:02 hat luzhipeng geschrieben:
From: lu zhipeng <luzhip...@cestc.cn>
we can unmap(discard) blocks for block devices of supporting discard zeros
or regular file.
Signed-off-by: lu zhipeng <luzhip...@cestc.cn>
This more or less restores the state before commit 34fa110e. The commit
message there explains that s->discard_zeroes is unreliable (in
particular, it is false on block devices on recent kernels even though
they may support zeroing by discard just fine).
We should instead remove s->discard_zeroes because it is currently
unused. I'll send a patch.
Kevin
OK
