#include <errno.h>
#include <string.h>
#include <syslog.h>
+#ifdef __GLIBC__
+/* Newer glibc requires sys/sysmacros.h directly for makedev() */
+#include <sys/sysmacros.h>
+#endif
#ifdef __dietlibc__
#include <strings.h>
/* dietlibc has deprecated random and srandom!! */
#include <errno.h>
#else
#define LKF_NOQUEUE 0x00000001
-#define LKF_CONVERT 0x00000004
#define LKM_PWMODE 4
#define EUNLOCK 0x10002
* and there is no standard conversion function so... */
/* And dietlibc doesn't think byteswap is ok, so.. */
/* #include <byteswap.h> */
-#define bswap_16(x) (((x) & 0x00ffU) << 8 | \
- ((x) & 0xff00U) >> 8)
-#define bswap_32(x) (((x) & 0x000000ffU) << 24 | \
- ((x) & 0xff000000U) >> 24 | \
- ((x) & 0x0000ff00U) << 8 | \
- ((x) & 0x00ff0000U) >> 8)
-#define bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \
- ((x) & 0xff00000000000000ULL) >> 56 | \
- ((x) & 0x000000000000ff00ULL) << 40 | \
- ((x) & 0x00ff000000000000ULL) >> 40 | \
- ((x) & 0x0000000000ff0000ULL) << 24 | \
- ((x) & 0x0000ff0000000000ULL) >> 24 | \
- ((x) & 0x00000000ff000000ULL) << 8 | \
- ((x) & 0x000000ff00000000ULL) >> 8)
+#define __mdadm_bswap_16(x) (((x) & 0x00ffU) << 8 | \
+ ((x) & 0xff00U) >> 8)
+#define __mdadm_bswap_32(x) (((x) & 0x000000ffU) << 24 | \
+ ((x) & 0xff000000U) >> 24 | \
+ ((x) & 0x0000ff00U) << 8 | \
+ ((x) & 0x00ff0000U) >> 8)
+#define __mdadm_bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \
+ ((x) & 0xff00000000000000ULL) >> 56 | \
+ ((x) & 0x000000000000ff00ULL) << 40 | \
+ ((x) & 0x00ff000000000000ULL) >> 40 | \
+ ((x) & 0x0000000000ff0000ULL) << 24 | \
+ ((x) & 0x0000ff0000000000ULL) >> 24 | \
+ ((x) & 0x00000000ff000000ULL) << 8 | \
+ ((x) & 0x000000ff00000000ULL) >> 8)
#if !defined(__KLIBC__)
#if BYTE_ORDER == LITTLE_ENDIAN
#define __le32_to_cpu(_x) (unsigned int)(_x)
#define __le64_to_cpu(_x) (unsigned long long)(_x)
-#define __cpu_to_be16(_x) bswap_16(_x)
-#define __cpu_to_be32(_x) bswap_32(_x)
-#define __cpu_to_be64(_x) bswap_64(_x)
-#define __be16_to_cpu(_x) bswap_16(_x)
-#define __be32_to_cpu(_x) bswap_32(_x)
-#define __be64_to_cpu(_x) bswap_64(_x)
+#define __cpu_to_be16(_x) __mdadm_bswap_16(_x)
+#define __cpu_to_be32(_x) __mdadm_bswap_32(_x)
+#define __cpu_to_be64(_x) __mdadm_bswap_64(_x)
+#define __be16_to_cpu(_x) __mdadm_bswap_16(_x)
+#define __be32_to_cpu(_x) __mdadm_bswap_32(_x)
+#define __be64_to_cpu(_x) __mdadm_bswap_64(_x)
#elif BYTE_ORDER == BIG_ENDIAN
-#define __cpu_to_le16(_x) bswap_16(_x)
-#define __cpu_to_le32(_x) bswap_32(_x)
-#define __cpu_to_le64(_x) bswap_64(_x)
-#define __le16_to_cpu(_x) bswap_16(_x)
-#define __le32_to_cpu(_x) bswap_32(_x)
-#define __le64_to_cpu(_x) bswap_64(_x)
+#define __cpu_to_le16(_x) __mdadm_bswap_16(_x)
+#define __cpu_to_le32(_x) __mdadm_bswap_32(_x)
+#define __cpu_to_le64(_x) __mdadm_bswap_64(_x)
+#define __le16_to_cpu(_x) __mdadm_bswap_16(_x)
+#define __le32_to_cpu(_x) __mdadm_bswap_32(_x)
+#define __le64_to_cpu(_x) __mdadm_bswap_64(_x)
#define __cpu_to_be16(_x) (unsigned int)(_x)
#define __cpu_to_be32(_x) (unsigned int)(_x)
extern const char Name[];
+struct md_bb_entry {
+ unsigned long long sector;
+ int length;
+};
+
+struct md_bb {
+ int supported;
+ int count;
+ struct md_bb_entry *entries;
+};
+
/* general information that might be extracted from a superblock */
struct mdinfo {
mdu_array_info_t array;
int container_enough; /* flag external handlers can set to
* indicate that subarrays have not enough (-1),
* enough to start (0), or all expected disks (1) */
- char sys_name[20];
+ char sys_name[32];
struct mdinfo *devs;
struct mdinfo *next;
/* info read from sysfs */
char sysfs_array_state[20];
+
+ struct md_bb bb;
};
struct createinfo {
ConfigFile,
ChunkSize,
WriteMostly,
+ FailFast,
+ NoFailFast,
Layout,
Auto,
Force,
* Not set for names read from .config
*/
char writemostly; /* 1 for 'set writemostly', 2 for 'clear writemostly' */
+ char failfast; /* Ditto but for 'failfast' flag */
int used; /* set when used */
long long data_offset;
struct mddev_dev *next;
extern int sysfs_unique_holder(char *devnm, long rdev);
extern int sysfs_freeze_array(struct mdinfo *sra);
extern int sysfs_wait(int fd, int *msec);
-extern int load_sys(char *path, char *buf);
+extern int load_sys(char *path, char *buf, int len);
extern int reshape_prepare_fdlist(char *devname,
struct mdinfo *sra,
int raid_disks,
* linear-grow-update - now change the size of the array.
* writemostly - set the WriteMostly1 bit in the superblock devflags
* readwrite - clear the WriteMostly1 bit in the superblock devflags
+ * failfast - set the FailFast1 bit in the superblock
+ * nofailfast - clear the FailFast1 bit
* no-bitmap - clear any record that a bitmap is present.
* bbl - add a bad-block-log if possible
* no-bbl - remove any bad-block-log is it is empty.
* created, in which case data_size may be updated, or it might
* already exist. Metadata handler can know if init_super
* has been called, but not write_init_super.
+ * 0: Success
+ * -Exxxx: On error
*/
int (*add_internal_bitmap)(struct supertype *st, int *chunkp,
int delay, int write_behind,
/* Seek 'fd' to start of write-intent-bitmap. Must be an
* md-native format bitmap
*/
- int (*locate_bitmap)(struct supertype *st, int fd);
+ int (*locate_bitmap)(struct supertype *st, int fd, int node_num);
/* if add_internal_bitmap succeeded for existing array, this
* writes it out.
*/
}
extern struct supertype *dup_super(struct supertype *st);
extern int get_dev_size(int fd, char *dname, unsigned long long *sizep);
+extern int get_dev_sector_size(int fd, char *dname, unsigned int *sectsizep);
extern int must_be_container(int fd);
extern int dev_size_from_id(dev_t id, unsigned long long *size);
void wait_for(char *dev, int fd);
extern int ExamineBitmap(char *filename, int brief, struct supertype *st);
extern int Write_rules(char *rule_name);
extern int bitmap_update_uuid(int fd, int *uuid, int swap);
-extern unsigned long bitmap_sectors(struct bitmap_super_s *bsb);
+
+/* calculate the size of the bitmap given the array size and bitmap chunksize */
+static inline unsigned long long
+bitmap_bits(unsigned long long array_size, unsigned long chunksize)
+{
+ return (array_size * 512 + chunksize - 1) / chunksize;
+}
+
extern int Dump_metadata(char *dev, char *dir, struct context *c,
struct supertype *st);
extern int Restore_metadata(char *dev, char *dir, struct context *c,
extern void put_md_name(char *name);
extern char *devid2kname(int devid);
-extern char *devid2devnm(int devid);
-extern int devnm2devid(char *devnm);
+extern char *devid2devnm(dev_t devid);
+extern dev_t devnm2devid(char *devnm);
extern char *get_md_name(char *devnm);
extern char DefaultConfFile[];
extern int mdmon_pid(char *devnm);
extern int check_env(char *name);
extern __u32 random32(void);
+extern void random_uuid(__u8 *buf);
extern int start_mdmon(char *devnm);
extern int child_monitor(int afd, struct mdinfo *sra, struct reshape *reshape,
void *super1_make_v0(struct supertype *st, struct mdinfo *info, mdp_super_t *sb0);
-extern void fmt_devname(char *name, int num);
+extern char *stat2kname(struct stat *st);
+extern char *fd2kname(int fd);
extern char *stat2devnm(struct stat *st);
extern char *fd2devnm(int fd);
projects / thirdparty / mdadm.git / blobdiff