Messages in this thread Patch in this message | | | From | Liu Shixin <> | Subject | [PATCH -next v4 6/6] mm/zswap: skip confusing print info | Date | Mon, 29 Aug 2022 21:23:02 +0800 |
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It's confusing when we disable zswap while zswap is init failed or has no pool. If no change required, just return directly.
Signed-off-by: Liu Shixin <liushixin2@huawei.com> --- mm/zswap.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/mm/zswap.c b/mm/zswap.c index dac1714c7eda..be466ccf489b 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -886,6 +886,15 @@ static int zswap_zpool_param_set(const char *val, static int zswap_enabled_param_set(const char *val, const struct kernel_param *kp) { + bool res; + + if (kstrtobool(val, &res)) + return -EINVAL; + + /* no change required */ + if (res == *(bool *)kp->arg) + return 0; + if (system_state == SYSTEM_RUNNING) { mutex_lock(&zswap_init_lock); if (zswap_setup()) { -- 2.25.1
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