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vmcoreinfo: rename vmcoreinfo's macros returning the size

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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>
This commit is contained in:
Ken'ichi Ohmichi 2008-02-07 00:15:20 -08:00 committed by Linus Torvalds
parent 18a01a3beb
commit c76f860c44
3 changed files with 11 additions and 11 deletions
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2
arch/ia64/kernel/machine_kexec.c
View file

@ -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

6
include/linux/kexec.h
View file

@ -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))

14
kernel/kexec.c
View file

@ -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);