Commit 8d30abff authored by Joe Thornber's avatar Joe Thornber Committed by Mike Snitzer
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dm thin: return error from alloc_data_block if pool is not in write mode

Signed-off-by: default avatarJoe Thornber <>
Signed-off-by: default avatarMike Snitzer <>
parent 7f214665
......@@ -923,6 +923,9 @@ static int alloc_data_block(struct thin_c *tc, dm_block_t *result)
if (pool->no_free_space)
return -ENOSPC;
if (get_pool_mode(pool) != PM_WRITE)
return -EINVAL;
r = dm_pool_get_free_block_count(pool->pmd, &free_blocks);
if (r)
return r;
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