block: Always check queue limits for cloned requests

When a cloned request is retried on other queues it always needs
to be checked against the queue limits of that queue.
Otherwise the calculations for nr_phys_segments might be wrong,
leading to a crash in scsi_init_sgtable().

To clarify this the patch renames blk_rq_check_limits()
to blk_cloned_rq_check_limits() and removes the symbol
export, as the new function should only be used for
cloned requests and never exported.

Cc: Mike Snitzer <[email protected]>
Cc: Ewan Milne <[email protected]>
Cc: Jeff Moyer <[email protected]>
Signed-off-by: Hannes Reinecke <[email protected]>
Fixes: e2a60da74 ("block: Clean up special command handling logic")
Cc: [email protected] # 3.7+
Acked-by: Mike Snitzer <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>

0 files changed, 0 insertions, 0 deletions