aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2009-09-22 16:45:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 07:39:41 -0700
commitc30bb2a25fcfde6157e6154a32c14686fb0bedbe (patch)
treeafa4811d46e5f9035a035b2c8c864bbb6c5af049
parent2ef43ec772551e975a6ea7cf22b59c84955aadf9 (diff)
kcore: add kclist types
Presently, kclist_add() only eats start address and size as its arguments. Considering to make kclist dynamically reconfigulable, it's necessary to know which kclists are for System RAM and which are not. This patch add kclist types as KCORE_RAM KCORE_VMALLOC KCORE_TEXT KCORE_OTHER This "type" is used in a patch following this for detecting KCORE_RAM. 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>
-rw-r--r--arch/ia64/mm/init.c7
-rw-r--r--arch/mips/mm/init.c7
-rw-r--r--arch/powerpc/mm/init_32.c4
-rw-r--r--arch/powerpc/mm/init_64.c5
-rw-r--r--arch/sh/mm/init.c4
-rw-r--r--arch/x86/mm/init_32.c4
-rw-r--r--arch/x86/mm/init_64.c11
-rw-r--r--fs/proc/kcore.c3
-rw-r--r--include/linux/proc_fs.h13
9 files changed, 36 insertions, 22 deletions
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 1d286244a56..f6a3c21a282 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -639,9 +639,10 @@ mem_init (void)
high_memory = __va(max_low_pfn * PAGE_SIZE);
- kclist_add(&kcore_mem, __va(0), max_low_pfn * PAGE_SIZE);
- kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
- kclist_add(&kcore_kernel, _stext, _end - _stext);
+ 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)
if (pgdat->bdata->node_bootmem_map)
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 1f4ee4797a6..f8661985bff 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -409,11 +409,12 @@ void __init mem_init(void)
if ((unsigned long) &_text > (unsigned long) CKSEG0)
/* The -4 is a hack so that user tools don't have to handle
the overflow. */
- kclist_add(&kcore_kseg0, (void *) CKSEG0, 0x80000000 - 4);
+ kclist_add(&kcore_kseg0, (void *) CKSEG0,
+ 0x80000000 - 4, KCORE_TEXT);
#endif
- kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+ kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END-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 3ef5084b90c..e91add90ec5 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -268,11 +268,11 @@ static int __init setup_kcore(void)
size);
}
- kclist_add(kcore_mem, __va(base), size);
+ kclist_add(kcore_mem, __va(base), size, KCORE_RAM);
}
kclist_add(&kcore_vmem, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START);
+ VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
return 0;
}
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 31582329cd6..9ee563101b5 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -128,10 +128,11 @@ static int __init setup_kcore(void)
if (!kcore_mem)
panic("%s: kmalloc failed\n", __func__);
- kclist_add(kcore_mem, __va(base), size);
+ kclist_add(kcore_mem, __va(base), size, KCORE_RAM);
}
- kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
+ kclist_add(&kcore_vmem, (void *)VMALLOC_START,
+ VMALLOC_END-VMALLOC_START, KCORE_VMALLOC);
return 0;
}
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index fabb7c6f48d..ef56c9f9d7b 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -226,9 +226,9 @@ void __init mem_init(void)
datasize = (unsigned long) &_edata - (unsigned long) &_etext;
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
- kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+ kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END - 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 b49b4f67453..2cbc4011293 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -886,9 +886,9 @@ void __init mem_init(void)
datasize = (unsigned long) &_edata - (unsigned long) &_etext;
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
- kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+ kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END-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 810bd31e7f5..c05810b614f 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -677,13 +677,14 @@ void __init mem_init(void)
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
/* Register memory areas for /proc/kcore */
- kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+ kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM);
kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
- VMALLOC_END-VMALLOC_START);
- kclist_add(&kcore_kernel, &_stext, _end - _stext);
- kclist_add(&kcore_modules, (void *)MODULES_VADDR, MODULES_LEN);
+ 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);
kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START,
- VSYSCALL_END - VSYSCALL_START);
+ VSYSCALL_END - VSYSCALL_START, KCORE_OTHER);
printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
"%ldk absent, %ldk reserved, %ldk data, %ldk init)\n",
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index f9327e51ce9..659c1635db8 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -62,10 +62,11 @@ static LIST_HEAD(kclist_head);
static DEFINE_RWLOCK(kclist_lock);
void
-kclist_add(struct kcore_list *new, void *addr, size_t size)
+kclist_add(struct kcore_list *new, void *addr, size_t size, int type)
{
new->addr = (unsigned long)addr;
new->size = size;
+ new->type = type;
write_lock(&kclist_lock);
list_add_tail(&new->list, &kclist_head);
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 0aff2a62eba..bd7b840765a 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -78,10 +78,18 @@ struct proc_dir_entry {
struct list_head pde_openers; /* who did ->open, but not ->release */
};
+enum kcore_type {
+ KCORE_TEXT,
+ KCORE_VMALLOC,
+ KCORE_RAM,
+ KCORE_OTHER,
+};
+
struct kcore_list {
struct list_head list;
unsigned long addr;
size_t size;
+ int type;
};
struct vmcore {
@@ -233,11 +241,12 @@ static inline void dup_mm_exe_file(struct mm_struct *oldmm,
#endif /* CONFIG_PROC_FS */
#if !defined(CONFIG_PROC_KCORE)
-static inline void kclist_add(struct kcore_list *new, void *addr, size_t size)
+static inline void
+kclist_add(struct kcore_list *new, void *addr, size_t size, int type)
{
}
#else
-extern void kclist_add(struct kcore_list *, void *, size_t);
+extern void kclist_add(struct kcore_list *, void *, size_t, int type);
#endif
union proc_op {