UBI: Fastmap: Ensure that only one fastmap work is scheduled

If the WL pool runs out of PEBs we schedule a fastmap write
to refill it as soon as possible.
Ensure that only one at a time is scheduled otherwise we might end in
a fastmap write storm because writing the fastmap can schedule another
write if bitflips are detected.

Signed-off-by: Richard Weinberger <[email protected]>
Reviewed-by: Tanya Brokhman <[email protected]>
Reviewed-by: Guido Martínez <[email protected]>

0 files changed, 0 insertions, 0 deletions