vmcoreinfo: rename vmcoreinfo's macros returning the size

This patchset is for the vmcoreinfo data.

The vmcoreinfo data has the minimum debugging information only for dump
filtering.  makedumpfile (dump filtering command) gets it to distinguish
unnecessary pages, and makedumpfile creates a small dumpfile.

This patch:

VMCOREINFO_SIZE() should be renamed VMCOREINFO_STRUCT_SIZE() since it's always
returning the size of the struct with a given name. This change would allow
VMCOREINFO_TYPEDEF_SIZE() to simply become VMCOREINFO_SIZE() since it need not
be used exclusively for typedefs.

This discussion is the following:
http://www.ussg.iu.edu/hypermail/linux/kernel/0709.3/0582.html

Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
index d6cd45f..6e725ef 100644 (file)
--- a/arch/ia64/kernel/machine_kexec.c
+++ b/arch/ia64/kernel/machine_kexec.c
@@ -135,7 +135,7 @@ void arch_crash_save_vmcoreinfo(void)
 
        VMCOREINFO_SYMBOL(node_memblk);
        VMCOREINFO_LENGTH(node_memblk, NR_NODE_MEMBLKS);
-       VMCOREINFO_SIZE(node_memblk_s);
+       VMCOREINFO_STRUCT_SIZE(node_memblk_s);
        VMCOREINFO_OFFSET(node_memblk_s, start_paddr);
        VMCOREINFO_OFFSET(node_memblk_s, size);
 #endif

diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 2d9c448..39112a0 100644 (file)
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -130,11 +130,11 @@ unsigned long paddr_vmcoreinfo_note(void);
 #define VMCOREINFO_SYMBOL(name) \
        vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name)
 #define VMCOREINFO_SIZE(name) \
-       vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
-                             (unsigned long)sizeof(struct name))
-#define VMCOREINFO_TYPEDEF_SIZE(name) \
        vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
                              (unsigned long)sizeof(name))
+#define VMCOREINFO_STRUCT_SIZE(name) \
+       vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
+                             (unsigned long)sizeof(struct name))
 #define VMCOREINFO_OFFSET(name, field) \
        vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
                              (unsigned long)&(((struct name *)0)->field))

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 9a26eec..8eb4df1 100644 (file)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1376,15 +1376,15 @@ static int __init crash_save_vmcoreinfo_init(void)
 #ifdef CONFIG_SPARSEMEM
        VMCOREINFO_SYMBOL(mem_section);
        VMCOREINFO_LENGTH(mem_section, NR_SECTION_ROOTS);
-       VMCOREINFO_SIZE(mem_section);
+       VMCOREINFO_STRUCT_SIZE(mem_section);
        VMCOREINFO_OFFSET(mem_section, section_mem_map);
 #endif
-       VMCOREINFO_SIZE(page);
-       VMCOREINFO_SIZE(pglist_data);
-       VMCOREINFO_SIZE(zone);
-       VMCOREINFO_SIZE(free_area);
-       VMCOREINFO_SIZE(list_head);
-       VMCOREINFO_TYPEDEF_SIZE(nodemask_t);
+       VMCOREINFO_STRUCT_SIZE(page);
+       VMCOREINFO_STRUCT_SIZE(pglist_data);
+       VMCOREINFO_STRUCT_SIZE(zone);
+       VMCOREINFO_STRUCT_SIZE(free_area);
+       VMCOREINFO_STRUCT_SIZE(list_head);
+       VMCOREINFO_SIZE(nodemask_t);
        VMCOREINFO_OFFSET(page, flags);
        VMCOREINFO_OFFSET(page, _count);
        VMCOREINFO_OFFSET(page, mapping);