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authorVlastimil Babka <vbabka@suse.cz>2020-06-07 21:40:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-08 11:05:56 -0700
commit0a477e1ae21b28267b9bd8599f75c115291b1666 (patch)
treefd6d6fcf36ba88147fed3e15ae0d911a8554040c /mm
parent3db978d480e2843979a2b56f2f7da726f2b295b2 (diff)
kernel/sysctl: support handling command line aliases
We can now handle sysctl parameters on kernel command line, but historically some parameters introduced their own command line equivalent, which we don't want to remove for compatibility reasons. We can, however, convert them to the generic infrastructure with a table translating the legacy command line parameters to their sysctl names, and removing the one-off param handlers. This patch adds the support and makes the first conversion to demonstrate it, on the (deprecated) numa_zonelist_order parameter. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-3-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 07ae77d97952..727751219003 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5575,15 +5575,6 @@ static int __parse_numa_zonelist_order(char *s)
return 0;
}
-static __init int setup_numa_zonelist_order(char *s)
-{
- if (!s)
- return 0;
-
- return __parse_numa_zonelist_order(s);
-}
-early_param("numa_zonelist_order", setup_numa_zonelist_order);
-
char numa_zonelist_order[] = "Node";
/*