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authorJens Axboe <axboe@kernel.dk>2018-11-08 10:24:07 -0700
committerJens Axboe <axboe@kernel.dk>2018-11-08 10:24:07 -0700
commit7baa85727d0406ffd2b2303cd803a145aa35c505 (patch)
tree580e8cf709bda194b7271ca9310f11ea0d8b14e3 /drivers/block/mtip32xx
parentc28445fa06a3a54e06938559b9514c5a7f01c90f (diff)
downloadlinux-7baa85727d0406ffd2b2303cd803a145aa35c505.tar.gz
blk-mq-tag: change busy_iter_fn to return whether to continue or not
We have this functionality in sbitmap, but we don't export it in blk-mq for users of the tags busy iteration. This can be useful for stopping the iteration, if the caller doesn't need to find more requests. Reviewed-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/mtip32xx')
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index a7daa8acbab3..947aa10107a6 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2720,7 +2720,7 @@ static void mtip_softirq_done_fn(struct request *rq)
blk_mq_end_request(rq, cmd->status);
}
-static void mtip_abort_cmd(struct request *req, void *data, bool reserved)
+static bool mtip_abort_cmd(struct request *req, void *data, bool reserved)
{
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(req);
struct driver_data *dd = data;
@@ -2730,14 +2730,16 @@ static void mtip_abort_cmd(struct request *req, void *data, bool reserved)
clear_bit(req->tag, dd->port->cmds_to_issue);
cmd->status = BLK_STS_IOERR;
mtip_softirq_done_fn(req);
+ return true;
}
-static void mtip_queue_cmd(struct request *req, void *data, bool reserved)
+static bool mtip_queue_cmd(struct request *req, void *data, bool reserved)
{
struct driver_data *dd = data;
set_bit(req->tag, dd->port->cmds_to_issue);
blk_abort_request(req);
+ return true;
}
/*
@@ -3920,12 +3922,13 @@ protocol_init_error:
return rv;
}
-static void mtip_no_dev_cleanup(struct request *rq, void *data, bool reserv)
+static bool mtip_no_dev_cleanup(struct request *rq, void *data, bool reserv)
{
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
cmd->status = BLK_STS_IOERR;
blk_mq_complete_request(rq);
+ return true;
}
/*