mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
4fdc08d418
This relatively straightforward converion saves a call to compound_head() hidden inside put_page(). Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#include <linux/pagemap.h>
|
|
#include <linux/blkdev.h>
|
|
#include "../blk.h"
|
|
|
|
/*
|
|
* add_gd_partition adds a partitions details to the devices partition
|
|
* description.
|
|
*/
|
|
struct parsed_partitions {
|
|
struct gendisk *disk;
|
|
char name[BDEVNAME_SIZE];
|
|
struct {
|
|
sector_t from;
|
|
sector_t size;
|
|
int flags;
|
|
bool has_info;
|
|
struct partition_meta_info info;
|
|
} *parts;
|
|
int next;
|
|
int limit;
|
|
bool access_beyond_eod;
|
|
char *pp_buf;
|
|
};
|
|
|
|
typedef struct {
|
|
struct folio *v;
|
|
} Sector;
|
|
|
|
void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p);
|
|
static inline void put_dev_sector(Sector p)
|
|
{
|
|
folio_put(p.v);
|
|
}
|
|
|
|
static inline void
|
|
put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
|
|
{
|
|
if (n < p->limit) {
|
|
char tmp[1 + BDEVNAME_SIZE + 10 + 1];
|
|
|
|
p->parts[n].from = from;
|
|
p->parts[n].size = size;
|
|
snprintf(tmp, sizeof(tmp), " %s%d", p->name, n);
|
|
strlcat(p->pp_buf, tmp, PAGE_SIZE);
|
|
}
|
|
}
|
|
|
|
/* detection routines go here in alphabetical order: */
|
|
int adfspart_check_ADFS(struct parsed_partitions *state);
|
|
int adfspart_check_CUMANA(struct parsed_partitions *state);
|
|
int adfspart_check_EESOX(struct parsed_partitions *state);
|
|
int adfspart_check_ICS(struct parsed_partitions *state);
|
|
int adfspart_check_POWERTEC(struct parsed_partitions *state);
|
|
int aix_partition(struct parsed_partitions *state);
|
|
int amiga_partition(struct parsed_partitions *state);
|
|
int atari_partition(struct parsed_partitions *state);
|
|
int cmdline_partition(struct parsed_partitions *state);
|
|
int efi_partition(struct parsed_partitions *state);
|
|
int ibm_partition(struct parsed_partitions *);
|
|
int karma_partition(struct parsed_partitions *state);
|
|
int ldm_partition(struct parsed_partitions *state);
|
|
int mac_partition(struct parsed_partitions *state);
|
|
int msdos_partition(struct parsed_partitions *state);
|
|
int osf_partition(struct parsed_partitions *state);
|
|
int sgi_partition(struct parsed_partitions *state);
|
|
int sun_partition(struct parsed_partitions *state);
|
|
int sysv68_partition(struct parsed_partitions *state);
|
|
int ultrix_partition(struct parsed_partitions *state);
|