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-rw-r--r--Documentation/admin-guide/sysctl/kernel.rst5
-rw-r--r--kernel/utsname_sysctl.c7
2 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index ee6572b1edad..bbaa85194695 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -65,6 +65,11 @@ combining the following values:
4 s3_beep
= =======
+arch
+====
+
+The machine hardware name, the same output as ``uname -m``
+(e.g. ``x86_64`` or ``aarch64``).
auto_msgmni
===========
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index 4ca61d49885b..7ffdd2cd5ff9 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -74,6 +74,13 @@ static DEFINE_CTL_TABLE_POLL(domainname_poll);
static struct ctl_table uts_kern_table[] = {
{
+ .procname = "arch",
+ .data = init_uts_ns.name.machine,
+ .maxlen = sizeof(init_uts_ns.name.machine),
+ .mode = 0444,
+ .proc_handler = proc_do_uts_string,
+ },
+ {
.procname = "ostype",
.data = init_uts_ns.name.sysname,
.maxlen = sizeof(init_uts_ns.name.sysname),