kcore: register vmalloc area in generic way
For /proc/kcore, vmalloc areas are registered per arch. But, all of them
registers same range of [VMALLOC_START...VMALLOC_END) This patch unifies
them. By this. archs which have no kclist_add() hooks can see vmalloc
area correctly.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index f6a3c21..286b98a 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -617,7 +617,7 @@
long reserved_pages, codesize, datasize, initsize;
pg_data_t *pgdat;
int i;
- static struct kcore_list kcore_mem, kcore_vmem, kcore_kernel;
+ static struct kcore_list kcore_mem, kcore_kernel;
BUG_ON(PTRS_PER_PGD * sizeof(pgd_t) != PAGE_SIZE);
BUG_ON(PTRS_PER_PMD * sizeof(pmd_t) != PAGE_SIZE);
@@ -640,8 +640,6 @@
high_memory = __va(max_low_pfn * PAGE_SIZE);
kclist_add(&kcore_mem, __va(0), max_low_pfn * PAGE_SIZE, KCORE_RAM);
- kclist_add(&kcore_vmem, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
kclist_add(&kcore_kernel, _stext, _end - _stext, KCORE_TEXT);
for_each_online_pgdat(pgdat)
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index f866198..4a83da4 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -352,7 +352,7 @@
free_area_init_nodes(max_zone_pfns);
}
-static struct kcore_list kcore_mem, kcore_vmalloc;
+static struct kcore_list kcore_mem;
#ifdef CONFIG_64BIT
static struct kcore_list kcore_kseg0;
#endif
@@ -413,8 +413,6 @@
0x80000000 - 4, KCORE_TEXT);
#endif
kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
- kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
"%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n",
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index e91add9..38a450d 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -243,7 +243,6 @@
#endif
#ifdef CONFIG_PROC_KCORE
-static struct kcore_list kcore_vmem;
static int __init setup_kcore(void)
{
@@ -271,9 +270,6 @@
kclist_add(kcore_mem, __va(base), size, KCORE_RAM);
}
- kclist_add(&kcore_vmem, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
-
return 0;
}
module_init(setup_kcore);
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 9ee5631..87ef492 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -110,7 +110,6 @@
#endif
#ifdef CONFIG_PROC_KCORE
-static struct kcore_list kcore_vmem;
static int __init setup_kcore(void)
{
@@ -131,9 +130,6 @@
kclist_add(kcore_mem, __va(base), size, KCORE_RAM);
}
- kclist_add(&kcore_vmem, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
-
return 0;
}
module_init(setup_kcore);
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ef56c9f..bf8bd02 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -186,7 +186,7 @@
set_fixmap_nocache(FIX_UNCACHED, __pa(&__uncached_start));
}
-static struct kcore_list kcore_mem, kcore_vmalloc;
+static struct kcore_list kcore_mem;
void __init mem_init(void)
{
@@ -227,8 +227,6 @@
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
- kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END - VMALLOC_START, KCORE_VMALLOC);
printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
"%dk data, %dk init)\n",
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 2cbc401..7108678 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -857,7 +857,7 @@
}
}
-static struct kcore_list kcore_mem, kcore_vmalloc;
+static struct kcore_list kcore_mem;
void __init mem_init(void)
{
@@ -887,8 +887,6 @@
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
- kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
"%dk reserved, %dk data, %dk init, %ldk highmem)\n",
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index c05810b6..da2cae7 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -647,7 +647,7 @@
#endif /* CONFIG_MEMORY_HOTPLUG */
-static struct kcore_list kcore_mem, kcore_vmalloc, kcore_kernel,
+static struct kcore_list kcore_mem, kcore_kernel,
kcore_modules, kcore_vsyscall;
void __init mem_init(void)
@@ -678,8 +678,6 @@
/* Register memory areas for /proc/kcore */
kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
- kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
kclist_add(&kcore_kernel, &_stext, _end - _stext, KCORE_TEXT);
kclist_add(&kcore_modules, (void *)MODULES_VADDR, MODULES_LEN,
KCORE_OTHER);
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 659c163..e10d360 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -372,9 +372,14 @@
return acc;
}
+static struct kcore_list kcore_vmalloc;
+
static int __init proc_kcore_init(void)
{
proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
+
+ kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
+ VMALLOC_END - VMALLOC_START, KCORE_VMALLOC);
return 0;
}
module_init(proc_kcore_init);