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pstore: Replace arguments for write_buf_user() API

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Removes argument list in favor of pstore record, though the user buffer
remains passed separately since it must carry the __user annotation.

Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2017-03-05 00:56:38 -08:00
parent b10b471145
commit fdd0311863
4 changed files with 29 additions and 50 deletions
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21
include/linux/pstore.h
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@ -152,18 +152,11 @@ struct pstore_record {
*
* @write_buf_user:
* Perform a frontend write to a backend record, using a specified
* buffer that is coming directly from userspace.
* buffer that is coming directly from userspace, instead of the
* @record @buf.
*
* @type: in: pstore record type to write
* @reason:
* in: pstore write reason
* @id: out: unique identifier for the record
* @part: in: position in a multipart write
* @buf: in: pointer to userspace contents to write to backend record
* @compressed:
* in: if the record is compressed
* @size: in: size of the write
* @psi: in: pointer to the struct pstore_info for the backend
* @record: pointer to record metadata.
* @buf: pointer to userspace contents to write to backend
*
* Returns 0 on success, and non-zero on error.
*
@ -196,10 +189,8 @@ struct pstore_info {
ssize_t (*read)(struct pstore_record *record);
int (*write)(struct pstore_record *record);
int (*write_buf)(struct pstore_record *record);
int (*write_buf_user)(enum pstore_type_id type,
enum kmsg_dump_reason reason, u64 *id,
unsigned int part, const char __user *buf,
bool compressed, size_t size, struct pstore_info *psi);
int (*write_buf_user)(struct pstore_record *record,
const char __user *buf);
int (*erase)(struct pstore_record *record);
};