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Message-Id: <20240628032327.16987-1-libang.li@antgroup.com>
Date: Fri, 28 Jun 2024 11:23:27 +0800
From: "Bang Li" <libang.li@...group.com>
To: hughd@...gle.com,
akpm@...ux-foundation.org
Cc: <baolin.wang@...ux.alibaba.com>,
<david@...hat.com>,
<ryan.roberts@....com>,
<linux-mm@...ck.org>,
<linux-kernel@...r.kernel.org>,
"Bang Li" <libang.li@...group.com>
Subject: [PATCH] mm/shmem: Fix input and output inconsistencies
After the commit 19eaf44954df ("mm: thp: support allocation of
anonymous multi-size THP"), add mTHP support for anonymous shmem.
We can configure different policies through the multi-size THP
sysfs interface for anonymous shmem.
But when we configure the "advise" policy of
/sys/kernel/mm/transparent_hugepage/hugepages-xxxkB/shmem_enabled,
we cannot write the "advise", but write the "madvise", which is
unreasonable. We should keep the output and input values consistent,
which is more convenient for users.
Fixes: 61a57f1b1da9 ("mm: shmem: add multi-size THP sysfs interface for anonymous shmem")
Signed-off-by: Bang Li <libang.li@...group.com>
---
mm/shmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index 13d139abe69a..d495c0701a83 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -4983,7 +4983,7 @@ static ssize_t thpsize_shmem_enabled_store(struct kobject *kobj,
clear_bit(order, &huge_shmem_orders_madvise);
set_bit(order, &huge_shmem_orders_within_size);
spin_unlock(&huge_shmem_orders_lock);
- } else if (sysfs_streq(buf, "madvise")) {
+ } else if (sysfs_streq(buf, "advise")) {
spin_lock(&huge_shmem_orders_lock);
clear_bit(order, &huge_shmem_orders_always);
clear_bit(order, &huge_shmem_orders_inherit);
--
2.19.1.6.gb485710b
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