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pstore: pass reason to backend write callback

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This allows a backend to filter on the dmesg reason as well as the pstore
reason. When ramoops is switched to pstore, this is needed since it has
no interest in storing non-crash dmesg details.

Drop pstore_write() as it has no users, and handling the "reason" here
has no obviously correct value.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Kees Cook
2011-11-17 13:13:29 -08:00
committed by Tony Luck
parent f6f8285132
commit 3d6d8d20ec
4 changed files with 15 additions and 41 deletions
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12
include/linux/pstore.h
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@@ -22,6 +22,9 @@
#ifndef _LINUX_PSTORE_H
#define _LINUX_PSTORE_H
#include <linux/time.h>
#include <linux/kmsg_dump.h>
/* types */
enum pstore_type_id {
PSTORE_TYPE_DMESG = 0,
@@ -41,7 +44,8 @@ struct pstore_info {
ssize_t (*read)(u64 *id, enum pstore_type_id *type,
struct timespec *time, char **buf,
struct pstore_info *psi);
int (*write)(enum pstore_type_id type, u64 *id,
int (*write)(enum pstore_type_id type,
enum kmsg_dump_reason reason, u64 *id,
unsigned int part, size_t size, struct pstore_info *psi);
int (*erase)(enum pstore_type_id type, u64 id,
struct pstore_info *psi);
@@ -50,18 +54,12 @@ struct pstore_info {
#ifdef CONFIG_PSTORE
extern int pstore_register(struct pstore_info *);
extern int pstore_write(enum pstore_type_id type, char *buf, size_t size);
#else
static inline int
pstore_register(struct pstore_info *psi)
{
return -ENODEV;
}
static inline int
pstore_write(enum pstore_type_id type, char *buf, size_t size)
{
return -ENODEV;
}
#endif
#endif /*_LINUX_PSTORE_H*/