4.12-stable review patch. If anyone has any objections, please let me know.
------------------ From: Bart Van Assche <[email protected]> commit 1c23484c355ec360ca2f37914f8a4802c6baeead upstream. When using the block layer in single queue mode, get_request() returns ERR_PTR(-EAGAIN) if the queue is dying and the REQ_NOWAIT flag has been passed to get_request(). Avoid that the kernel reports soft lockup complaints in this case due to continuous requeuing activity. Fixes: 7083abbbf ("dm mpath: avoid that path removal can trigger an infinite loop") Signed-off-by: Bart Van Assche <[email protected]> Tested-by: Laurence Oberman <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/md/dm-mpath.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -504,7 +504,6 @@ static int multipath_clone_and_map(struc if (queue_dying) { atomic_inc(&m->pg_init_in_progress); activate_or_offline_path(pgpath); - return DM_MAPIO_REQUEUE; } return DM_MAPIO_DELAY_REQUEUE; }
