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dm cache metadata: name the cache block that couldn't be loaded 

Improves __load_mapping_v1() and __load_mapping_v2() DMERR messages to
explicitly name the cache block number whose mapping couldn't be
loaded.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2016-10-04 15:22:17 -04:00
parent 629d0a8a1a
commit 48551054fc
1 changed files with 8 additions and 4 deletions
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12
drivers/md/dm-cache-metadata.c
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@ -1316,8 +1316,10 @@ static int __load_mapping_v1(struct dm_cache_metadata *cmd,
r = fn(context, oblock, to_cblock(cb), flags & M_DIRTY,
le32_to_cpu(hint), hints_valid);
if (r)
DMERR("policy couldn't load cblock");
if (r) {
DMERR("policy couldn't load cache block %llu",
(unsigned long long) from_cblock(to_cblock(cb)));
}
}
return r;
@ -1355,8 +1357,10 @@ static int __load_mapping_v2(struct dm_cache_metadata *cmd,
dirty = dm_bitset_cursor_get_value(dirty_cursor);
r = fn(context, oblock, to_cblock(cb), dirty,
le32_to_cpu(hint), hints_valid);
if (r)
DMERR("policy couldn't load cblock");
if (r) {
DMERR("policy couldn't load cache block %llu",
(unsigned long long) from_cblock(to_cblock(cb)));
}
}
return r;