From: Bang Li <libang.li@antgroup.com> mainline inclusion from mainline-v6.11-rc1 commit 843a2e24c24c5311831860c6b78ceacdd4627000 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAIHPC Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- Commit 19eaf44954df ("mm: thp: support allocation of anonymous multi-size THP") added 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. Link: https://lkml.kernel.org/r/20240628032327.16987-1-libang.li@antgroup.com Fixes: 61a57f1b1da9 ("mm: shmem: add multi-size THP sysfs interface for anonymous shmem") Signed-off-by: Bang Li <libang.li@antgroup.com> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Bang Li <libang.li@antgroup.com> Cc: David Hildenbrand <david@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Liu Shixin <liushixin2@huawei.com> --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index 3e15fdb2869e..c01b022bdb84 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -4950,7 +4950,7 @@ 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); -- 2.25.1