mm/swap: pull the CPU conditional out of __lru_add_drain_all()

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The function is too long, so pull this complicated conditional out into
cpu_needs_drain().  This ends up shrinking the text by 14 bytes,
by allowing GCC to cache the result of calling per_cpu() instead of
relocating each lookup individually.

Link: https://lkml.kernel.org/r/20220617175020.717127-11-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Matthew Wilcox (Oracle) 2022-06-17 18:50:08 +01:00 • committed by akpm

parent 82ac64d86f

commit 4864545a46

1 changed files with 16 additions and 8 deletions

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mm/swap.c

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