diff options
Diffstat (limited to 'super1.c')
| -rw-r--r-- | super1.c | 14 |
1 files changed, 12 insertions, 2 deletions
@@ -64,7 +64,9 @@ struct mdp_superblock_1 { __u32 dev_number; /* permanent identifier of this device - not role in raid */ __u32 cnt_corrected_read; /* number of read errors that were corrected by re-writing */ __u8 device_uuid[16]; /* user-space setable, ignored by kernel */ - __u8 pad2[64-56]; /* set to 0 when writing */ + __u8 devflags; /* per-device flags. Only one defined...*/ +#define WriteMostly1 1 /* mask for writemostly flag in above */ + __u8 pad2[64-57]; /* set to 0 when writing */ /* array state information - 64 bytes */ __u64 utime; /* 40 bits second, 24 btes microseconds */ @@ -153,6 +155,12 @@ static void examine_super1(void *sbv) if ((i&3)==0 && i != 0) printf(":"); } printf("\n"); + if (sb->devflags) { + printf(" Flags :"); + if (sb->devflags & WriteMostly1) + printf(" write-mostly"); + printf("\n"); + } atime = __le64_to_cpu(sb->utime) & 0xFFFFFFFFFFULL; printf(" Update Time : %.24s\n", ctime(&atime)); @@ -429,7 +437,7 @@ static void add_to_super1(void *sbv, mdu_disk_info_t *dk) { struct mdp_superblock_1 *sb = sbv; __u16 *rp = sb->dev_roles + dk->number; - if (dk->state == 6) /* active, sync */ + if ((dk->state & 6) == 6) /* active, sync */ *rp = __cpu_to_le16(dk->raid_disk); else if ((dk->state & ~2) == 0) /* active or idle -> spare */ *rp = 0xffff; @@ -517,6 +525,8 @@ static int write_init_super1(struct supertype *st, void *sbv, mdu_disk_info_t *d } sb->dev_number = __cpu_to_le32(dinfo->number); + if (dinfo->state & (1<<MD_DISK_WRITEMOSTLY)) + sb->devflags |= WriteMostly1; if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 || read(rfd, sb->device_uuid, 16) != 16) { |