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authorChristoph Hellwig <hch@lst.de>2020-09-24 08:51:36 +0200
committerJens Axboe <axboe@kernel.dk>2020-09-24 13:43:39 -0600
commita8b456d01cd6b37191f14248f3e2bdbe5ce3a89e (patch)
tree409f35af00eba0691be18217ce570d41751ab593 /drivers/nvdimm
parented7b6b4f6e915cb0bc52d0000bcc63168867b6ac (diff)
downloadlinux-a8b456d01cd6b37191f14248f3e2bdbe5ce3a89e.tar.bz2
bdi: remove BDI_CAP_SYNCHRONOUS_IO
BDI_CAP_SYNCHRONOUS_IO is only checked in the swap code, and used to decided if ->rw_page can be used on a block device. Just check up for the method instead. The only complication is that zram needs a second set of block_device_operations as it can switch between modes that actually support ->rw_page and those who don't. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/btt.c2
-rw-r--r--drivers/nvdimm/pmem.c1
2 files changed, 0 insertions, 3 deletions
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 0d710140bf93..12ff6f8784ac 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1537,8 +1537,6 @@ static int btt_blk_init(struct btt *btt)
btt->btt_disk->private_data = btt;
btt->btt_disk->queue = btt->btt_queue;
btt->btt_disk->flags = GENHD_FL_EXT_DEVT;
- btt->btt_disk->queue->backing_dev_info->capabilities |=
- BDI_CAP_SYNCHRONOUS_IO;
blk_queue_logical_block_size(btt->btt_queue, btt->sector_size);
blk_queue_max_hw_sectors(btt->btt_queue, UINT_MAX);
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 140cf3b9000c..1711fdfd8d28 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -475,7 +475,6 @@ static int pmem_attach_disk(struct device *dev,
disk->queue = q;
disk->flags = GENHD_FL_EXT_DEVT;
disk->private_data = pmem;
- disk->queue->backing_dev_info->capabilities |= BDI_CAP_SYNCHRONOUS_IO;
nvdimm_namespace_disk_name(ndns, disk->disk_name);
set_capacity(disk, (pmem->size - pmem->pfn_pad - pmem->data_offset)
/ 512);