#define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */
-#define MIGR_REC_BUF_SIZE 512 /* size of migr_record i/o buffer */
-#define MIGR_REC_POSITION 512 /* migr_record position offset on disk,
- * MIGR_REC_BUF_SIZE <= MIGR_REC_POSITION
+#define MIGR_REC_BUF_SECTORS 1 /* size of migr_record i/o buffer in sectors */
+#define MIGR_REC_SECTOR_POSITION 1 /* migr_record position offset on disk,
+ * MIGR_REC_BUF_SECTORS <= MIGR_REC_SECTOR_POS
*/
#define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must
human_size(sz * 512));
}
+void convert_to_4k_imsm_migr_rec(struct intel_super *super)
+{
+ struct migr_record *migr_rec = super->migr_rec;
+
+ migr_rec->blocks_per_unit /= IMSM_4K_DIV;
+ migr_rec->ckpt_area_pba /= IMSM_4K_DIV;
+ migr_rec->dest_1st_member_lba /= IMSM_4K_DIV;
+ migr_rec->dest_depth_per_unit /= IMSM_4K_DIV;
+ split_ull((join_u32(migr_rec->post_migr_vol_cap,
+ migr_rec->post_migr_vol_cap_hi) / IMSM_4K_DIV),
+ &migr_rec->post_migr_vol_cap, &migr_rec->post_migr_vol_cap_hi);
+}
+
void convert_to_4k_imsm_disk(struct imsm_disk *disk)
{
set_total_blocks(disk, (total_blocks(disk)/IMSM_4K_DIV));
}
#endif /* MDASSEMBLE */
+void convert_from_4k_imsm_migr_rec(struct intel_super *super)
+{
+ struct migr_record *migr_rec = super->migr_rec;
+
+ migr_rec->blocks_per_unit *= IMSM_4K_DIV;
+ migr_rec->ckpt_area_pba *= IMSM_4K_DIV;
+ migr_rec->dest_1st_member_lba *= IMSM_4K_DIV;
+ migr_rec->dest_depth_per_unit *= IMSM_4K_DIV;
+ split_ull((join_u32(migr_rec->post_migr_vol_cap,
+ migr_rec->post_migr_vol_cap_hi) * IMSM_4K_DIV),
+ &migr_rec->post_migr_vol_cap,
+ &migr_rec->post_migr_vol_cap_hi);
+}
+
void convert_from_4k(struct intel_super *super)
{
struct imsm_super *mpb = super->anchor;
unsigned int sector_size = super->sector_size;
unsigned int written = 0;
- if (posix_memalign(&buf, 4096, 4096) != 0)
+ if (posix_memalign(&buf, MAX_SECTOR_SIZE, MAX_SECTOR_SIZE) != 0)
return 1;
if (!get_dev_size(from, NULL, &dsize))
static int read_imsm_migr_rec(int fd, struct intel_super *super)
{
int ret_val = -1;
+ unsigned int sector_size = super->sector_size;
unsigned long long dsize;
get_dev_size(fd, NULL, &dsize);
- if (lseek64(fd, dsize - MIGR_REC_POSITION, SEEK_SET) < 0) {
+ if (lseek64(fd, dsize - (sector_size*MIGR_REC_SECTOR_POSITION),
+ SEEK_SET) < 0) {
pr_err("Cannot seek to anchor block: %s\n",
strerror(errno));
goto out;
}
- if (read(fd, super->migr_rec_buf, MIGR_REC_BUF_SIZE) !=
- MIGR_REC_BUF_SIZE) {
+ if (read(fd, super->migr_rec_buf,
+ MIGR_REC_BUF_SECTORS*sector_size) !=
+ MIGR_REC_BUF_SECTORS*sector_size) {
pr_err("Cannot read migr record block: %s\n",
strerror(errno));
goto out;
}
ret_val = 0;
+ if (sector_size == 4096)
+ convert_from_4k_imsm_migr_rec(super);
out:
return ret_val;
static int write_imsm_migr_rec(struct supertype *st)
{
struct intel_super *super = st->sb;
+ unsigned int sector_size = super->sector_size;
unsigned long long dsize;
char nm[30];
int fd = -1;
map = get_imsm_map(dev, MAP_0);
+ if (sector_size == 4096)
+ convert_to_4k_imsm_migr_rec(super);
for (sd = super->disks ; sd ; sd = sd->next) {
int slot = -1;
if (fd < 0)
continue;
get_dev_size(fd, NULL, &dsize);
- if (lseek64(fd, dsize - MIGR_REC_POSITION, SEEK_SET) < 0) {
+ if (lseek64(fd, dsize - (MIGR_REC_SECTOR_POSITION*sector_size),
+ SEEK_SET) < 0) {
pr_err("Cannot seek to anchor block: %s\n",
strerror(errno));
goto out;
}
- if (write(fd, super->migr_rec_buf, MIGR_REC_BUF_SIZE) !=
- MIGR_REC_BUF_SIZE) {
+ if (write(fd, super->migr_rec_buf,
+ MIGR_REC_BUF_SECTORS*sector_size) !=
+ MIGR_REC_BUF_SECTORS*sector_size) {
pr_err("Cannot write migr record block: %s\n",
strerror(errno));
goto out;
close(fd);
fd = -1;
}
+ if (sector_size == 4096)
+ convert_from_4k_imsm_migr_rec(super);
/* update checkpoint information in metadata */
len = imsm_create_metadata_checkpoint_update(super, &u);
-
if (len <= 0) {
dprintf("imsm: Cannot prepare update\n");
goto out;
sectors = mpb_sectors(anchor, sector_size) - 1;
free(anchor);
- if (posix_memalign(&super->migr_rec_buf, 512, MIGR_REC_BUF_SIZE) != 0) {
+ if (posix_memalign(&super->migr_rec_buf, sector_size,
+ MIGR_REC_BUF_SECTORS*sector_size) != 0) {
pr_err("could not allocate migr_rec buffer\n");
free(super->buf);
return 2;
pr_err("could not allocate new mpb\n");
return 0;
}
- if (posix_memalign(&super->migr_rec_buf, 512,
- MIGR_REC_BUF_SIZE) != 0) {
+ if (posix_memalign(&super->migr_rec_buf, sector_size,
+ MIGR_REC_BUF_SECTORS*sector_size) != 0) {
pr_err("could not allocate migr_rec buffer\n");
free(super->buf);
free(super);
pr_err("could not allocate superblock\n");
return 0;
}
- if (posix_memalign(&super->migr_rec_buf, 512, MIGR_REC_BUF_SIZE) != 0) {
+ if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE,
+ MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) {
pr_err("could not allocate migr_rec buffer\n");
free(super->buf);
free(super);
}
/* clear migr_rec when adding disk to container */
- memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SIZE);
- if (lseek64(fd, size - MIGR_REC_POSITION, SEEK_SET) >= 0) {
+ memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*super->sector_size);
+ if (lseek64(fd, size - MIGR_REC_SECTOR_POSITION*super->sector_size,
+ SEEK_SET) >= 0) {
if (write(fd, super->migr_rec_buf,
- MIGR_REC_BUF_SIZE) != MIGR_REC_BUF_SIZE)
+ MIGR_REC_BUF_SECTORS*super->sector_size) !=
+ MIGR_REC_BUF_SECTORS*super->sector_size)
perror("Write migr_rec failed");
}
super->clean_migration_record_by_mdmon = 0;
}
if (clear_migration_record)
- memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SIZE);
+ memset(super->migr_rec_buf, 0,
+ MIGR_REC_BUF_SECTORS*sector_size);
if (sector_size == 4096)
convert_to_4k(super);
unsigned long long dsize;
get_dev_size(d->fd, NULL, &dsize);
- if (lseek64(d->fd, dsize - 512, SEEK_SET) >= 0) {
+ if (lseek64(d->fd, dsize - sector_size,
+ SEEK_SET) >= 0) {
if (write(d->fd, super->migr_rec_buf,
- MIGR_REC_BUF_SIZE) != MIGR_REC_BUF_SIZE)
+ MIGR_REC_BUF_SECTORS*sector_size) !=
+ MIGR_REC_BUF_SECTORS*sector_size)
perror("Write migr_rec failed");
}
}
int ret_val = 0;
struct intel_super *super = st->sb;
struct intel_dev *dv;
+ unsigned int sector_size = super->sector_size;
struct imsm_dev *dev = NULL;
struct imsm_map *map_src;
int migr_vol_qan = 0;
buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512;
/* add space for stripe aligment */
buf_size += old_data_stripe_length;
- if (posix_memalign((void **)&buf, 4096, buf_size)) {
- dprintf("imsm: Cannot allocate checpoint buffer\n");
+ if (posix_memalign((void **)&buf, MAX_SECTOR_SIZE, buf_size)) {
+ dprintf("imsm: Cannot allocate checkpoint buffer\n");
goto abort;
}
/* clear migr_rec on disks after successful migration */
struct dl *d;
- memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SIZE);
+ memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*sector_size);
for (d = super->disks; d; d = d->next) {
if (d->index < 0 || is_failed(&d->disk))
continue;
unsigned long long dsize;
get_dev_size(d->fd, NULL, &dsize);
- if (lseek64(d->fd, dsize - MIGR_REC_POSITION,
+ if (lseek64(d->fd, dsize - MIGR_REC_SECTOR_POSITION*sector_size,
SEEK_SET) >= 0) {
if (write(d->fd, super->migr_rec_buf,
- MIGR_REC_BUF_SIZE) != MIGR_REC_BUF_SIZE)
+ MIGR_REC_BUF_SECTORS*sector_size) !=
+ MIGR_REC_BUF_SECTORS*sector_size)
perror("Write migr_rec failed");
}
}