mm/damon/sysfs: use enum for 'state' input handling

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DAMON sysfs 'state' file handling code is using string literals in both
'state_show()' and 'state_store()'.  This makes the code error prone and
inflexible for future extensions.

To improve the situation, this commit defines possible input strings and
'enum' for identifying each input keyword only once, and refactors the
code to reuse those.

Link: https://lkml.kernel.org/r/20220429160606.127307-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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SeongJae Park 2022-05-09 18:20:55 -07:00 • committed by Andrew Morton

parent 97d482f459

commit 3cbab4ca1e

1 changed files with 62 additions and 10 deletions

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mm/damon/sysfs.c

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