diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-06-26 14:27:09 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-07-02 19:32:44 +0200 |
| commit | d8668bb0451c3c45b59dbcde2654e0539aad1d2a (patch) | |
| tree | f3a7eddbdcab1fbb8fb531eee1ae2c218700e711 /drivers/nvdimm | |
| parent | memremap: move dev_pagemap callbacks into a separate structure (diff) | |
| download | linux-d8668bb0451c3c45b59dbcde2654e0539aad1d2a.tar.xz linux-d8668bb0451c3c45b59dbcde2654e0539aad1d2a.zip | |
memremap: pass a struct dev_pagemap to ->kill and ->cleanup
Passing the actual typed structure leads to more understandable code
vs just passing the ref member.
Reported-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/nvdimm')
| -rw-r--r-- | drivers/nvdimm/pmem.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index c2449af2b388..9dac48359353 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -303,24 +303,24 @@ static const struct attribute_group *pmem_attribute_groups[] = { NULL, }; -static void pmem_pagemap_cleanup(struct percpu_ref *ref) +static void pmem_pagemap_cleanup(struct dev_pagemap *pgmap) { - struct request_queue *q; + struct request_queue *q = + container_of(pgmap->ref, struct request_queue, q_usage_counter); - q = container_of(ref, typeof(*q), q_usage_counter); blk_cleanup_queue(q); } -static void pmem_release_queue(void *ref) +static void pmem_release_queue(void *pgmap) { - pmem_pagemap_cleanup(ref); + pmem_pagemap_cleanup(pgmap); } -static void pmem_pagemap_kill(struct percpu_ref *ref) +static void pmem_pagemap_kill(struct dev_pagemap *pgmap) { - struct request_queue *q; + struct request_queue *q = + container_of(pgmap->ref, struct request_queue, q_usage_counter); - q = container_of(ref, typeof(*q), q_usage_counter); blk_freeze_queue_start(q); } @@ -435,7 +435,7 @@ static int pmem_attach_disk(struct device *dev, memcpy(&bb_res, &pmem->pgmap.res, sizeof(bb_res)); } else { if (devm_add_action_or_reset(dev, pmem_release_queue, - &q->q_usage_counter)) + &pmem->pgmap)) return -ENOMEM; addr = devm_memremap(dev, pmem->phys_addr, pmem->size, ARCH_MEMREMAP_PMEM); |