mm/vmscan: filter empty page_list at the beginning

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node_page_list would always be !empty on finishing the loop, except
page_list is empty.

Let's handle empty page_list before doing any real work including touching
PF_MEMALLOC flag.

Link: https://lkml.kernel.org/r/20220429014426.29223-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

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Wei Yang 2022-05-12 20:23:00 -07:00 • committed by Andrew Morton

parent f19a27e399

commit 1ae65e2749

1 changed files with 6 additions and 4 deletions

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mm/vmscan.c

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