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Commit d62f843b authored by Jens Axboe's avatar Jens Axboe
Browse files

block: make blk_iopoll_prep_sched() follow normal 0/1 return convention 



Return 0 if we successfully marked this iopoll structure as ours for
scheduling, instead of 1.

Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 1b379d8d

include/linux/blk-iopoll.h

+9 −2
Original line number Diff line number Diff line
@@ -18,10 +18,17 @@ enum { 
	IOPOLL_F_DISABLE	= 1,

};



/*

 * Returns 0 if we successfully set the IOPOLL_F_SCHED bit, indicating

 * that we were the first to acquire this iop for scheduling. If this iop

 * is currently disabled, return "failure".

 */

static inline int blk_iopoll_sched_prep(struct blk_iopoll *iop)

{

	return !test_bit(IOPOLL_F_DISABLE, &iop->state) &&

		!test_and_set_bit(IOPOLL_F_SCHED, &iop->state);

	if (!test_bit(IOPOLL_F_DISABLE, &iop->state))

		return test_and_set_bit(IOPOLL_F_SCHED, &iop->state);



	return 1;

}



static inline int blk_iopoll_disable_pending(struct blk_iopoll *iop)