md: don't clear MD_CHANGE_CLEAN in md_update_sb() for external arrays

If this bit is cleared in md_update_sb() the kernel will allow writes to the
array if userspace triggers md_allow_write(), e.g. through stripe_cache_size,
when mdmon is not active.  When mdmon is active the array transitions to
active-idle bypassing write-pending, setting up a race for mdmon to set the
array clean before a write arrives.

Signed-off-by: Dan Williams <[email protected]>
Signed-off-by: NeilBrown <[email protected]>

0 files changed, 0 insertions, 0 deletions