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Date:   Tue, 12 Jan 2021 12:38:18 -0800
From:   Randy Dunlap <>
        Shakeel Butt <>
Subject: Re: mmotm 2021-01-12-01-57 uploaded (NR_SWAPCACHE in mm/)

On 1/12/21 1:58 AM, wrote:
> The mm-of-the-moment snapshot 2021-01-12-01-57 has been uploaded to
> mmotm-readme.txt says
> README for mm-of-the-moment:
> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> more than once a week.

on i386 and x86_64:

when CONFIG_SWAP is not set/enabled:

../mm/migrate.c: In function ‘migrate_page_move_mapping’:
../mm/migrate.c:504:35: error: ‘NR_SWAPCACHE’ undeclared (first use in this function); did you mean ‘QC_SPACE’?
    __mod_lruvec_state(old_lruvec, NR_SWAPCACHE, -nr);

../mm/memcontrol.c:1529:20: error: ‘NR_SWAPCACHE’ undeclared here (not in a function); did you mean ‘SGP_CACHE’?
  { "swapcached",   NR_SWAPCACHE   },

Reported-by: Randy Dunlap <>


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