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dm thin: allow metadata commit if pool is in PM_OUT_OF_DATA_SPACE mode 

Commit 3e1a0699 ("dm thin: fix out of data space handling") introduced
a regression in the metadata commit() method by returning an error if
the pool is in PM_OUT_OF_DATA_SPACE mode.  This oversight caused a thin
device to return errors even if the default queue_if_no_space ENOSPC
handling mode is used.

Fix commit() to only fail if pool is in PM_READ_ONLY or PM_FAIL mode.

Reported-by: qindehua@163.com
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.14+
This commit is contained in:
Joe Thornber 2014-05-06 16:28:14 +01:00 committed by Mike Snitzer
parent 610f2de355
commit 8d07e8a5f5
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-thin.c
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@ -935,7 +935,7 @@ static int commit(struct pool *pool)
{
int r;
if (get_pool_mode(pool) != PM_WRITE)
if (get_pool_mode(pool) >= PM_READ_ONLY)
return -EINVAL;
r = dm_pool_commit_metadata(pool->pmd);