We can still use 'kernelcore=mirror' or 'movable_node' for the usage
of hotplug and movable zone. If somebody shows up with a valid usecase
we can reconsider.
Suggested-by: Michal Hocko <mhocko@xxxxxxxxxx>
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
---
Documentation/admin-guide/kernel-parameters.txt | 2 ++
mm/page_alloc.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index efc7aa7a0670..1e22c49866a2 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1855,6 +1855,7 @@
keepinitrd [HW,ARM]
kernelcore= [KNL,X86,IA-64,PPC]
+ [Usage of kernelcore=nn[KMGTPE] | nn% is deprecated]
Format: nn[KMGTPE] | nn% | "mirror"
This parameter specifies the amount of memory usable by
the kernel for non-movable allocations. The requested
@@ -2395,6 +2396,7 @@
reporting absolute coordinates, such as tablets
movablecore= [KNL,X86,IA-64,PPC]
+ [Deprecated]
Format: nn[KMGTPE] | nn%
This parameter is the complement to kernelcore=, it
specifies the amount of memory used for migratable
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 1521100f1e63..86cf05f48b5f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6899,6 +6899,8 @@ static int __init cmdline_parse_kernelcore(char *p)
return 0;
}
+ pr_warn("Only kernelcore=mirror supported, "
+ "usage of kernelcore=nn[KMGTPE]|nn%% is deprecated.\n");
return cmdline_parse_core(p, &required_kernelcore,
&required_kernelcore_percent);
}
@@ -6909,6 +6911,7 @@ static int __init cmdline_parse_kernelcore(char *p)
*/
static int __init cmdline_parse_movablecore(char *p)
{
+ pr_warn("Option movablecore= is deprecated.\n");
return cmdline_parse_core(p, &required_movablecore,
&required_movablecore_percent);
}
--
2.13.6
