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pstore: Switch pstore_mkfile to pass record

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Instead of the long list of arguments, just pass the new record struct.

Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2017-03-03 18:16:32 -08:00
parent 634f8f5167
commit 1edd1aa397
3 changed files with 34 additions and 34 deletions
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57
fs/pstore/inode.c
View File

@ -302,9 +302,7 @@ bool pstore_is_mounted(void)
* Load it up with "size" bytes of data from "buf".
* Set the mtime & ctime to the date that this record was originally stored.
*/
int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
char *data, bool compressed, size_t size,
struct timespec time, struct pstore_info *psi)
int pstore_mkfile(struct pstore_record *record)
{
struct dentry *root = pstore_sb->s_root;
struct dentry *dentry;
@ -313,12 +311,13 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
char name[PSTORE_NAMELEN];
struct pstore_private *private, *pos;
unsigned long flags;
size_t size = record->size + record->ecc_notice_size;
spin_lock_irqsave(&allpstore_lock, flags);
list_for_each_entry(pos, &allpstore, list) {
if (pos->type == type &&
pos->id == id &&
pos->psi == psi) {
if (pos->type == record->type &&
pos->id == record->id &&
pos->psi == record->psi) {
rc = -EEXIST;
break;
}
@ -336,48 +335,56 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
private = kmalloc(sizeof *private + size, GFP_KERNEL);
if (!private)
goto fail_alloc;
private->type = type;
private->id = id;
private->count = count;
private->psi = psi;
private->type = record->type;
private->id = record->id;
private->count = record->count;
private->psi = record->psi;
switch (type) {
switch (record->type) {
case PSTORE_TYPE_DMESG:
scnprintf(name, sizeof(name), "dmesg-%s-%lld%s",
psname, id, compressed ? ".enc.z" : "");
record->psi->name, record->id,
record->compressed ? ".enc.z" : "");
break;
case PSTORE_TYPE_CONSOLE:
scnprintf(name, sizeof(name), "console-%s-%lld", psname, id);
scnprintf(name, sizeof(name), "console-%s-%lld",
record->psi->name, record->id);
break;
case PSTORE_TYPE_FTRACE:
scnprintf(name, sizeof(name), "ftrace-%s-%lld", psname, id);
scnprintf(name, sizeof(name), "ftrace-%s-%lld",
record->psi->name, record->id);
break;
case PSTORE_TYPE_MCE:
scnprintf(name, sizeof(name), "mce-%s-%lld", psname, id);
scnprintf(name, sizeof(name), "mce-%s-%lld",
record->psi->name, record->id);
break;
case PSTORE_TYPE_PPC_RTAS:
scnprintf(name, sizeof(name), "rtas-%s-%lld", psname, id);
scnprintf(name, sizeof(name), "rtas-%s-%lld",
record->psi->name, record->id);
break;
case PSTORE_TYPE_PPC_OF:
scnprintf(name, sizeof(name), "powerpc-ofw-%s-%lld",
psname, id);
record->psi->name, record->id);
break;
case PSTORE_TYPE_PPC_COMMON:
scnprintf(name, sizeof(name), "powerpc-common-%s-%lld",
psname, id);
record->psi->name, record->id);
break;
case PSTORE_TYPE_PMSG:
scnprintf(name, sizeof(name), "pmsg-%s-%lld", psname, id);
scnprintf(name, sizeof(name), "pmsg-%s-%lld",
record->psi->name, record->id);
break;
case PSTORE_TYPE_PPC_OPAL:
sprintf(name, "powerpc-opal-%s-%lld", psname, id);
scnprintf(name, sizeof(name), "powerpc-opal-%s-%lld",
record->psi->name, record->id);
break;
case PSTORE_TYPE_UNKNOWN:
scnprintf(name, sizeof(name), "unknown-%s-%lld", psname, id);
scnprintf(name, sizeof(name), "unknown-%s-%lld",
record->psi->name, record->id);
break;
default:
scnprintf(name, sizeof(name), "type%d-%s-%lld",
type, psname, id);
record->type, record->psi->name, record->id);
break;
}
@ -387,13 +394,13 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
if (!dentry)
goto fail_lockedalloc;
memcpy(private->data, data, size);
memcpy(private->data, record->buf, size);
inode->i_size = private->size = size;
inode->i_private = private;
if (time.tv_sec)
inode->i_mtime = inode->i_ctime = time;
if (record->time.tv_sec)
inode->i_mtime = inode->i_ctime = record->time;
d_add(dentry, inode);

5
fs/pstore/internal.h
View File

@ -25,10 +25,7 @@ extern struct pstore_info *psinfo;
extern void pstore_set_kmsg_bytes(int);
extern void pstore_get_records(int);
extern int pstore_mkfile(enum pstore_type_id, char *psname, u64 id,
int count, char *data, bool compressed,
size_t size, struct timespec time,
struct pstore_info *psi);
extern int pstore_mkfile(struct pstore_record *record);
extern bool pstore_is_mounted(void);
#endif

6
fs/pstore/platform.c
View File

@ -814,11 +814,7 @@ void pstore_get_records(int quiet)
record.psi)) > 0) {
decompress_record(&record);
rc = pstore_mkfile(record.type, psi->name, record.id,
record.count, record.buf,
record.compressed,
record.size + record.ecc_notice_size,
record.time, record.psi);
rc = pstore_mkfile(&record);
/* Free buffer other than big oops */
if (record.buf != big_oops_buf)