Re: [RFC mm/zswap 0/2] Fix the compatibility of zsmalloc and zswap

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在 2021/1/15 2:46, Vitaly Wool 写道:
On Fri, Dec 25, 2020 at 12:02 PM Tian Tao <tiantao6@xxxxxxxxxxxxx> wrote:
patch #1 add a flag to zpool, then zswap used to determine if zpool
drivers such as zbud/z3fold/zsmalloc whether can sleep in atoimc context.
patch #2 set flag sleep_mapped to true indicates that zbud/z3fold can
sleep in atomic context. zsmalloc didin't support sleep in atomic context,
so not set that flag to true.

Tian Tao (2):
   mm/zswap: add the flag can_sleep_mapped
   mm: set the sleep_mapped to true for zbud and z3fold

  include/linux/zpool.h |  3 +++
  mm/z3fold.c           |  1 +
  mm/zbud.c             |  1 +
  mm/zpool.c            | 13 +++++++++++++
  mm/zswap.c            | 50 +++++++++++++++++++++++++++++++++++++++++++++-----
  5 files changed, 63 insertions(+), 5 deletions(-)
Haven't been able to actually test these yet, but looks good to me so far, so
I have tested that this patch works well,it's better to double check by you or someone else.

Reviewed-by: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>

Please wait a bit for Mike, Sebastian or me to actually test this.
Also, keep them CC'd explicitly if you are to come up with a new
version for some reason.

Best regards,
    Vitaly
.







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