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bcache: writes correct superblock for multiple cache devs

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Signed-off-by: Nicholas Swenson <nks@daterainc.com>
This commit is contained in:
Nicholas Swenson 2013-10-31 16:15:49 -07:00
parent fe921e118b
commit f5cf644def
1 changed files with 8 additions and 4 deletions
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12
make-bcache.c
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@ -169,7 +169,8 @@ static void write_sb(char *dev, unsigned block_size, unsigned bucket_size,
bool writeback, bool discard,
unsigned cache_replacement_policy,
uint64_t data_offset,
uuid_t set_uuid, bool bdev)
uuid_t set_uuid, bool bdev,
uint16_t nr_in_set, uint16_t nr_this_dev)
{
int fd;
char uuid_str[40], set_uuid_str[40];
@ -217,7 +218,8 @@ static void write_sb(char *dev, unsigned block_size, unsigned bucket_size,
data_offset);
} else {
sb.nbuckets = getblocks(fd) / sb.bucket_size;
sb.nr_in_set = 1;
sb.nr_in_set = nr_in_set;
sb.nr_this_dev = nr_this_dev;
sb.first_bucket = (23 / sb.bucket_size) + 1;
if (sb.nbuckets < 1 << 7) {
@ -413,12 +415,14 @@ int main(int argc, char **argv)
for (i = 0; i < ncache_devices; i++)
write_sb(cache_devices[i], block_size, bucket_size,
writeback, discard, cache_replacement_policy,
data_offset, set_uuid, false);
data_offset, set_uuid, false,
ncache_devices, i);
for (i = 0; i < nbacking_devices; i++)
write_sb(backing_devices[i], block_size, bucket_size,
writeback, discard, cache_replacement_policy,
data_offset, set_uuid, true);
data_offset, set_uuid, true,
nbacking_devices, i);
return 0;
}