The patch titled
Subject: x86/modules: Make x86 allocs to flush when free
has been added to the -mm tree. Its filename is
x86-modules-make-x86-allocs-to-flush-when-free.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/x86-modules-make-x86-allocs-to-flush-when-free.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/x86-modules-make-x86-allocs-to-flush-when-free.patch
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------------------------------------------------------
From: Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>
Subject: x86/modules: Make x86 allocs to flush when free
Change the module allocations to flush before freeing the pages.
Link: http://lkml.kernel.org/r/20181128000754.18056-3-rick.p.edgecombe@xxxxxxxxx
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>
Cc: Alexei Starovoitov <ast@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
Cc: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Cc: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Jessica Yu <jeyu@xxxxxxxxxx>
Cc: Kristen Carlson Accardi <kristen@xxxxxxxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Cc: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/module.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/kernel/module.c~x86-modules-make-x86-allocs-to-flush-when-free
+++ a/arch/x86/kernel/module.c
@@ -87,8 +87,8 @@ void *module_alloc(unsigned long size)
p = __vmalloc_node_range(size, MODULE_ALIGN,
MODULES_VADDR + get_module_load_offset(),
MODULES_END, GFP_KERNEL,
- PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
- __builtin_return_address(0));
+ PAGE_KERNEL_EXEC, VM_IMMEDIATE_UNMAP,
+ NUMA_NO_NODE, __builtin_return_address(0));
if (p && (kasan_module_alloc(p, size) < 0)) {
vfree(p);
return NULL;
_
Patches currently in -mm which might be from rick.p.edgecombe@xxxxxxxxx are
vmalloc-new-flag-for-flush-before-releasing-pages.patch
x86-modules-make-x86-allocs-to-flush-when-free.patch
