OSDN Git Service

s390: use generic version of arch_is_kernel_initmem_freed()
authorChristophe Leroy <christophe.leroy@csgroup.eu>
Fri, 5 Nov 2021 20:40:49 +0000 (13:40 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 6 Nov 2021 20:30:38 +0000 (13:30 -0700)
The generic version of arch_is_kernel_initmem_freed() now does the same
as s390 version.

Remove the s390 version.

Link: https://lkml.kernel.org/r/b6feb5dfe611a322de482762fc2df3a9eece70c7.1633001016.git.christophe.leroy@csgroup.eu
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/s390/include/asm/sections.h
arch/s390/mm/init.c

index 85881dd..3fecaa4 100644 (file)
@@ -2,20 +2,8 @@
 #ifndef _S390_SECTIONS_H
 #define _S390_SECTIONS_H
 
-#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed
-
 #include <asm-generic/sections.h>
 
-extern bool initmem_freed;
-
-static inline int arch_is_kernel_initmem_freed(unsigned long addr)
-{
-       if (!initmem_freed)
-               return 0;
-       return addr >= (unsigned long)__init_begin &&
-              addr < (unsigned long)__init_end;
-}
-
 /*
  * .boot.data section contains variables "shared" between the decompressor and
  * the decompressed kernel. The decompressor will store values in them, and
index a04faf4..8c6f258 100644 (file)
@@ -58,8 +58,6 @@ unsigned long empty_zero_page, zero_page_mask;
 EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(zero_page_mask);
 
-bool initmem_freed;
-
 static void __init setup_zero_pages(void)
 {
        unsigned int order;
@@ -214,7 +212,6 @@ void __init mem_init(void)
 
 void free_initmem(void)
 {
-       initmem_freed = true;
        __set_memory((unsigned long)_sinittext,
                     (unsigned long)(_einittext - _sinittext) >> PAGE_SHIFT,
                     SET_MEMORY_RW | SET_MEMORY_NX);