sb->daemon_sleep = __le32_to_cpu(sb->daemon_sleep);
sb->sync_size = __le64_to_cpu(sb->sync_size);
sb->write_behind = __le32_to_cpu(sb->write_behind);
+ sb->nodes = __le32_to_cpu(sb->nodes);
+ sb->sectors_reserved = __le32_to_cpu(sb->sectors_reserved);
}
inline void sb_cpu_to_le(bitmap_super_t *sb)
{
int i, num = 0;
- for (i=0; i < num_bits / 8; i++)
+ for (i = 0; i < num_bits / 8; i++)
num += count_dirty_bits_byte(buf[i], 8);
if (num_bits % 8) /* not an even byte boundary */
return (bits + bits_per_sector - 1) / bits_per_sector;
}
-
bitmap_info_t *bitmap_fd_read(int fd, int brief)
{
/* Note: fd might be open O_DIRECT, so we must be
}
n = read(fd, buf, 8192);
- info = malloc(sizeof(*info));
- if (info == NULL) {
-#if __GNUC__ < 3
- pr_err("failed to allocate %d bytes\n",
- (int)sizeof(*info));
-#else
- pr_err("failed to allocate %zd bytes\n",
- sizeof(*info));
-#endif
- free(buf);
- return NULL;
- }
+ info = xmalloc(sizeof(*info));
if (n < sizeof(info->sb)) {
- pr_err("failed to read superblock of bitmap "
- "file: %s\n", strerror(errno));
+ pr_err("failed to read superblock of bitmap file: %s\n", strerror(errno));
free(info);
free(buf);
return NULL;
}
if (read_bits < total_bits) { /* file truncated... */
- pr_err("WARNING: bitmap file is not large "
- "enough for array size %llu!\n\n",
+ pr_err("WARNING: bitmap file is not large enough for array size %llu!\n\n",
(unsigned long long)info->sb.sync_size);
total_bits = read_bits;
}
return info;
}
-bitmap_info_t *bitmap_file_read(char *filename, int brief, struct supertype **stp)
+int bitmap_file_open(char *filename, struct supertype **stp)
{
int fd;
- bitmap_info_t *info;
struct stat stb;
struct supertype *st = *stp;
if (stat(filename, &stb) < 0) {
pr_err("failed to find file %s: %s\n",
filename, strerror(errno));
- return NULL;
+ return -1;
}
if ((S_IFMT & stb.st_mode) == S_IFBLK) {
- fd = open(filename, O_RDONLY);
+ fd = open(filename, O_RDONLY|O_DIRECT);
if (fd < 0) {
pr_err("failed to open bitmap file %s: %s\n",
filename, strerror(errno));
- return NULL;
+ return -1;
}
/* block device, so we are probably after an internal bitmap */
if (!st) st = guess_super(fd);
} else if (!st->ss->locate_bitmap) {
pr_err("No bitmap possible with %s metadata\n",
st->ss->name);
- return NULL;
+ return -1;
} else
st->ss->locate_bitmap(st, fd);
- ioctl(fd, BLKFLSBUF, 0); /* make sure we read current data */
*stp = st;
} else {
fd = open(filename, O_RDONLY|O_DIRECT);
if (fd < 0) {
pr_err("failed to open bitmap file %s: %s\n",
filename, strerror(errno));
- return NULL;
+ return -1;
}
}
- info = bitmap_fd_read(fd, brief);
- close(fd);
- return info;
+ return fd;
}
__u32 swapl(__u32 l)
int rv = 1;
char buf[64];
int swap;
+ int fd, i;
__u32 uuid32[4];
- info = bitmap_file_read(filename, brief, &st);
- if (!info)
+ fd = bitmap_file_open(filename, &st);
+ if (fd < 0)
return rv;
+ info = bitmap_fd_read(fd, brief);
+ if (!info)
+ return rv;
sb = &info->sb;
+ if (sb->magic != BITMAP_MAGIC && md_get_version(fd) > 0) {
+ pr_err("This is an md array. To view a bitmap you need to examine\n");
+ pr_err("a member device, not the array.\n");
+ pr_err("Reporting bitmap that would be used if this array were used\n");
+ pr_err("as a member of some other array\n");
+ }
+ close(fd);
printf(" Filename : %s\n", filename);
printf(" Magic : %08x\n", sb->magic);
if (sb->magic != BITMAP_MAGIC) {
- pr_err("invalid bitmap magic 0x%x, the bitmap file appears to be corrupted\n", sb->magic);
+ pr_err("invalid bitmap magic 0x%x, the bitmap file appears\n",
+ sb->magic);
+ pr_err("to be corrupted or missing.\n");
}
printf(" Version : %d\n", sb->version);
if (sb->version < BITMAP_MAJOR_LO ||
sb->version > BITMAP_MAJOR_HI) {
- pr_err("unknown bitmap version %d, either the bitmap file is corrupted or you need to upgrade your tools\n", sb->version);
+ pr_err("unknown bitmap version %d, either the bitmap file\n",
+ sb->version);
+ pr_err("is corrupted or you need to upgrade your tools\n");
goto free_info;
}
uuid32[2],
uuid32[3]);
- printf(" Events : %llu\n", (unsigned long long)sb->events);
- printf(" Events Cleared : %llu\n", (unsigned long long)sb->events_cleared);
- printf(" State : %s\n", bitmap_state(sb->state));
+ if (sb->nodes == 0) {
+ printf(" Events : %llu\n", (unsigned long long)sb->events);
+ printf(" Events Cleared : %llu\n", (unsigned long long)sb->events_cleared);
+ printf(" State : %s\n", bitmap_state(sb->state));
+
+ }
+
printf(" Chunksize : %s\n", human_chunksize(sb->chunksize));
printf(" Daemon : %ds flush period\n", sb->daemon_sleep);
if (sb->write_behind)
printf(" Write Mode : %s\n", buf);
printf(" Sync Size : %llu%s\n", (unsigned long long)sb->sync_size/2,
human_size(sb->sync_size * 512));
- if (brief)
- goto free_info;
- printf(" Bitmap : %llu bits (chunks), %llu dirty (%2.1f%%)\n",
- info->total_bits, info->dirty_bits,
- 100.0 * info->dirty_bits / (info->total_bits?:1));
+
+ if (sb->nodes == 0) {
+ if (brief)
+ goto free_info;
+ printf(" Bitmap : %llu bits (chunks), %llu dirty (%2.1f%%)\n",
+ info->total_bits, info->dirty_bits,
+ 100.0 * info->dirty_bits / (info->total_bits?:1));
+ } else {
+ printf(" Cluster nodes : %d\n", sb->nodes);
+ printf(" Cluster name : %64s\n", sb->cluster_name);
+ for (i = 0; i < (int)sb->nodes; i++) {
+ if (i) {
+ free(info);
+ info = bitmap_fd_read(fd, brief);
+ sb = &info->sb;
+ }
+ if (sb->magic != BITMAP_MAGIC)
+ pr_err("invalid bitmap magic 0x%x, the bitmap file appears to be corrupted\n", sb->magic);
+
+ printf(" Node Slot : %d\n", i);
+ printf(" Events : %llu\n",
+ (unsigned long long)sb->events);
+ printf(" Events Cleared : %llu\n",
+ (unsigned long long)sb->events_cleared);
+ printf(" State : %s\n", bitmap_state(sb->state));
+ if (brief)
+ continue;
+ printf(" Bitmap : %llu bits (chunks), %llu dirty (%2.1f%%)\n",
+ info->total_bits, info->dirty_bits,
+ 100.0 * info->dirty_bits / (info->total_bits?:1));
+
+ }
+ }
+
free_info:
free(info);
return rv;
projects / thirdparty / mdadm.git / blobdiff