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scsi: rnbd: Remove WRITE_SAME support

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REQ_OP_WRITE_SAME was only ever submitted by the legacy Linux zeroing code,
which has switched to use REQ_OP_WRITE_ZEROES long before rnbd was even
merged.

Link: https://lore.kernel.org/r/20220209082828.2629273-4-hch@lst.de
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2022-02-09 09:28:24 +01:00 committed by Martin K. Petersen
parent a34592ff6b
commit ebd0473763
4 changed files with 3 additions and 14 deletions
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7
drivers/block/rnbd/rnbd-clt.c
View File

@ -82,7 +82,6 @@ static int rnbd_clt_set_dev_attr(struct rnbd_clt_dev *dev,
dev->nsectors = le64_to_cpu(rsp->nsectors);
dev->logical_block_size = le16_to_cpu(rsp->logical_block_size);
dev->physical_block_size = le16_to_cpu(rsp->physical_block_size);
dev->max_write_same_sectors = le32_to_cpu(rsp->max_write_same_sectors);
dev->max_discard_sectors = le32_to_cpu(rsp->max_discard_sectors);
dev->discard_granularity = le32_to_cpu(rsp->discard_granularity);
dev->discard_alignment = le32_to_cpu(rsp->discard_alignment);
@ -1359,8 +1358,6 @@ static void setup_request_queue(struct rnbd_clt_dev *dev)
blk_queue_logical_block_size(dev->queue, dev->logical_block_size);
blk_queue_physical_block_size(dev->queue, dev->physical_block_size);
blk_queue_max_hw_sectors(dev->queue, dev->max_hw_sectors);
blk_queue_max_write_same_sectors(dev->queue,
dev->max_write_same_sectors);
/*
* we don't support discards to "discontiguous" segments
@ -1610,10 +1607,10 @@ struct rnbd_clt_dev *rnbd_clt_map_device(const char *sessname,
}
rnbd_clt_info(dev,
"map_device: Device mapped as %s (nsectors: %zu, logical_block_size: %d, physical_block_size: %d, max_write_same_sectors: %d, max_discard_sectors: %d, discard_granularity: %d, discard_alignment: %d, secure_discard: %d, max_segments: %d, max_hw_sectors: %d, rotational: %d, wc: %d, fua: %d)\n",
"map_device: Device mapped as %s (nsectors: %zu, logical_block_size: %d, physical_block_size: %d, max_discard_sectors: %d, discard_granularity: %d, discard_alignment: %d, secure_discard: %d, max_segments: %d, max_hw_sectors: %d, rotational: %d, wc: %d, fua: %d)\n",
dev->gd->disk_name, dev->nsectors,
dev->logical_block_size, dev->physical_block_size,
dev->max_write_same_sectors, dev->max_discard_sectors,
dev->max_discard_sectors,
dev->discard_granularity, dev->discard_alignment,
dev->secure_discard, dev->max_segments,
dev->max_hw_sectors, dev->rotational, dev->wc, dev->fua);

1
drivers/block/rnbd/rnbd-clt.h
View File

@ -122,7 +122,6 @@ struct rnbd_clt_dev {
bool wc;
bool fua;
u32 max_hw_sectors;
u32 max_write_same_sectors;
u32 max_discard_sectors;
u32 discard_granularity;
u32 discard_alignment;

6
drivers/block/rnbd/rnbd-proto.h
View File

@ -249,9 +249,6 @@ static inline u32 rnbd_to_bio_flags(u32 rnbd_opf)
case RNBD_OP_SECURE_ERASE:
bio_opf = REQ_OP_SECURE_ERASE;
break;
case RNBD_OP_WRITE_SAME:
bio_opf = REQ_OP_WRITE_SAME;
break;
default:
WARN(1, "Unknown RNBD type: %d (flags %d)\n",
rnbd_op(rnbd_opf), rnbd_opf);
@ -284,9 +281,6 @@ static inline u32 rq_to_rnbd_flags(struct request *rq)
case REQ_OP_SECURE_ERASE:
rnbd_opf = RNBD_OP_SECURE_ERASE;
break;
case REQ_OP_WRITE_SAME:
rnbd_opf = RNBD_OP_WRITE_SAME;
break;
case REQ_OP_FLUSH:
rnbd_opf = RNBD_OP_FLUSH;
break;

3
drivers/block/rnbd/rnbd-srv.c
View File

@ -558,8 +558,7 @@ static void rnbd_srv_fill_msg_open_rsp(struct rnbd_msg_open_rsp *rsp,
cpu_to_le16(rnbd_dev_get_max_segs(rnbd_dev));
rsp->max_hw_sectors =
cpu_to_le32(rnbd_dev_get_max_hw_sects(rnbd_dev));
rsp->max_write_same_sectors =
cpu_to_le32(bdev_write_same(rnbd_dev->bdev));
rsp->max_write_same_sectors = 0;
rsp->max_discard_sectors =
cpu_to_le32(rnbd_dev_get_max_discard_sects(rnbd_dev));
rsp->discard_granularity =