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nvme: fold nvme_config_discard() into nvme_update_disk_info()

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The choice of what queue limits are set in nvme_update_disk_info() vs.
nvme_config_discard() seems a bit arbitrary. A subsequent commit will
compute the discard_granularity limit using struct nvme_id_ns, which is
only passed to nvme_update_disk_info() currently. So move the logic in
nvme_config_discard() to nvme_update_disk_info(). Replace several
instances of ns->ctrl in nvme_update_disk_info() with the ctrl variable
brought from nvme_config_discard().

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Caleb Sander Mateos
2026-02-27 13:23:47 -07:00
committed by Keith Busch
parent ac61e869be
commit 9110b85244
1 changed files with 19 additions and 24 deletions
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43
drivers/nvme/host/core.c
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@@ -1884,26 +1884,6 @@ static bool nvme_init_integrity(struct nvme_ns_head *head,
return true;
}
static void nvme_config_discard(struct nvme_ns *ns, struct queue_limits *lim)
{
struct nvme_ctrl *ctrl = ns->ctrl;
if (ctrl->dmrsl && ctrl->dmrsl <= nvme_sect_to_lba(ns->head, UINT_MAX))
lim->max_hw_discard_sectors =
nvme_lba_to_sect(ns->head, ctrl->dmrsl);
else if (ctrl->oncs & NVME_CTRL_ONCS_DSM)
lim->max_hw_discard_sectors = UINT_MAX;
else
lim->max_hw_discard_sectors = 0;
lim->discard_granularity = lim->logical_block_size;
if (ctrl->dmrl)
lim->max_discard_segments = ctrl->dmrl;
else
lim->max_discard_segments = NVME_DSM_MAX_RANGES;
}
static bool nvme_ns_ids_equal(struct nvme_ns_ids *a, struct nvme_ns_ids *b)
{
return uuid_equal(&a->uuid, &b->uuid) &&
@@ -2082,6 +2062,7 @@ static bool nvme_update_disk_info(struct nvme_ns *ns, struct nvme_id_ns *id,
struct queue_limits *lim)
{
struct nvme_ns_head *head = ns->head;
struct nvme_ctrl *ctrl = ns->ctrl;
u32 bs = 1U << head->lba_shift;
u32 atomic_bs, phys_bs, io_opt = 0;
bool valid = true;
@@ -2116,11 +2097,26 @@ static bool nvme_update_disk_info(struct nvme_ns *ns, struct nvme_id_ns *id,
lim->physical_block_size = min(phys_bs, atomic_bs);
lim->io_min = phys_bs;
lim->io_opt = io_opt;
if ((ns->ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES) &&
(ns->ctrl->oncs & NVME_CTRL_ONCS_DSM))
if ((ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES) &&
(ctrl->oncs & NVME_CTRL_ONCS_DSM))
lim->max_write_zeroes_sectors = UINT_MAX;
else
lim->max_write_zeroes_sectors = ns->ctrl->max_zeroes_sectors;
lim->max_write_zeroes_sectors = ctrl->max_zeroes_sectors;
if (ctrl->dmrsl && ctrl->dmrsl <= nvme_sect_to_lba(ns->head, UINT_MAX))
lim->max_hw_discard_sectors =
nvme_lba_to_sect(ns->head, ctrl->dmrsl);
else if (ctrl->oncs & NVME_CTRL_ONCS_DSM)
lim->max_hw_discard_sectors = UINT_MAX;
else
lim->max_hw_discard_sectors = 0;
lim->discard_granularity = lim->logical_block_size;
if (ctrl->dmrl)
lim->max_discard_segments = ctrl->dmrl;
else
lim->max_discard_segments = NVME_DSM_MAX_RANGES;
return valid;
}
@@ -2385,7 +2381,6 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns,
if (!nvme_update_disk_info(ns, id, &lim))
capacity = 0;
nvme_config_discard(ns, &lim);
if (IS_ENABLED(CONFIG_BLK_DEV_ZONED) &&
ns->head->ids.csi == NVME_CSI_ZNS)
nvme_update_zone_info(ns, &lim, &zi);