search for: blk_mq_tag_busy

Displaying 5 results from an estimated 5 matches for "blk_mq_tag_busy".

[PATCH] blk-mq: Avoid race condition with uninitialized requests
2014 Sep 18
3
[PATCH] blk-mq: Avoid race condition with uninitialized requests
This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. Test is still pending. David Hildenbrand (1): blk-mq: Avoid race condition with uninitialized requests block/blk-mq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 1.8.5.5
[PATCH] blk-mq: Avoid race condition with uninitialized requests
2014 Sep 18
3
[PATCH] blk-mq: Avoid race condition with uninitialized requests
This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. Test is still pending. David Hildenbrand (1): blk-mq: Avoid race condition with uninitialized requests block/blk-mq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 1.8.5.5
[PATCH] blk-mq: Avoid race condition with uninitialized requests
2014 Sep 18
0
[PATCH] blk-mq: Avoid race condition with uninitialized requests
...a/block/blk-mq.c b/block/blk-mq.c index 383ea0c..eed6340 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -203,7 +203,6 @@ __blk_mq_alloc_request(struct blk_mq_alloc_data *data, int rw) if (tag != BLK_MQ_TAG_FAIL) { rq = data->hctx->tags->rqs[tag]; - rq->cmd_flags = 0; if (blk_mq_tag_busy(data->hctx)) { rq->cmd_flags = REQ_MQ_INFLIGHT; atomic_inc(&data->hctx->nr_active); @@ -258,6 +257,7 @@ static void __blk_mq_free_request(struct blk_mq_hw_ctx *hctx, if (rq->cmd_flags & REQ_MQ_INFLIGHT) atomic_dec(&hctx->nr_active); + rq->cmd_flags =...
[PATCH] blk-mq: Avoid race condition with uninitialized requests
2014 Sep 22
1
[PATCH] blk-mq: Avoid race condition with uninitialized requests
...383ea0c..eed6340 100644 > --- a/block/blk-mq.c > +++ b/block/blk-mq.c > @@ -203,7 +203,6 @@ __blk_mq_alloc_request(struct blk_mq_alloc_data *data, int rw) > if (tag != BLK_MQ_TAG_FAIL) { > rq = data->hctx->tags->rqs[tag]; > > - rq->cmd_flags = 0; > if (blk_mq_tag_busy(data->hctx)) { > rq->cmd_flags = REQ_MQ_INFLIGHT; > atomic_inc(&data->hctx->nr_active); > @@ -258,6 +257,7 @@ static void __blk_mq_free_request(struct blk_mq_hw_ctx *hctx, > > if (rq->cmd_flags & REQ_MQ_INFLIGHT) > atomic_dec(&hctx->nr_a...
[PATCH] blk-mq: Avoid race condition with uninitialized requests
2014 Sep 22
1
[PATCH] blk-mq: Avoid race condition with uninitialized requests
...383ea0c..eed6340 100644 > --- a/block/blk-mq.c > +++ b/block/blk-mq.c > @@ -203,7 +203,6 @@ __blk_mq_alloc_request(struct blk_mq_alloc_data *data, int rw) > if (tag != BLK_MQ_TAG_FAIL) { > rq = data->hctx->tags->rqs[tag]; > > - rq->cmd_flags = 0; > if (blk_mq_tag_busy(data->hctx)) { > rq->cmd_flags = REQ_MQ_INFLIGHT; > atomic_inc(&data->hctx->nr_active); > @@ -258,6 +257,7 @@ static void __blk_mq_free_request(struct blk_mq_hw_ctx *hctx, > > if (rq->cmd_flags & REQ_MQ_INFLIGHT) > atomic_dec(&hctx->nr_a...