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| author | Joe Thornber <ejt@redhat.com> | 2013-12-05 01:16:11 +0100 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-01-07 16:14:24 +0100 |
| commit | 8d30abff758b5f6c71343b7da6bb5de129a76c08 (patch) | |
| tree | 9fdb1fd9d22ad3546f47bdc7151d06779afbe412 | |
| parent | dm thin: use bool rather than unsigned for flags in structures (diff) | |
| download | linux-8d30abff758b5f6c71343b7da6bb5de129a76c08.tar.xz linux-8d30abff758b5f6c71343b7da6bb5de129a76c08.zip | |
dm thin: return error from alloc_data_block if pool is not in write mode
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
| -rw-r--r-- | drivers/md/dm-thin.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 5f1b11e45702..1988019df5c9 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -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; |