4.16-stable review patch. If anyone has any objections, please let me know.
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From: Heinz Mauelshagen heinzm@redhat.com
commit 880bcce0dcc3172fe865352b492c41d85290cb8d upstream.
Fix a race for "nosync" activations providing "aa.." device health characters and "0/N" sync ratio rather than "AA..." and "N/N". Occurs when status for the raid set is retrieved during resume before the MD sync thread starts and clears the MD_RECOVERY_NEEDED flag.
Cc: stable@vger.kernel.org # 4.16+ Signed-off-by: Heinz Mauelshagen heinzm@redhat.com Signed-off-by: Mike Snitzer snitzer@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/md/dm-raid.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3408,7 +3408,8 @@ static sector_t rs_get_progress(struct r set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags);
} else { - if (!test_bit(MD_RECOVERY_INTR, &recovery) && + if (!test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags) && + !test_bit(MD_RECOVERY_INTR, &recovery) && (test_bit(MD_RECOVERY_NEEDED, &recovery) || test_bit(MD_RECOVERY_RESHAPE, &recovery) || test_bit(MD_RECOVERY_RUNNING, &recovery)))