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nvme: directly cache command effects log

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Remove the struct used for tracking known command effects logs in a
list. This is now saved in an xarray that doesn't use these elements.
Instead, store the log directly instead of the wrapper struct.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Keith Busch 2020-11-13 10:28:30 -08:00 committed by Christoph Hellwig
parent 0f0d2c876c
commit f6224b8681
2 changed files with 4 additions and 11 deletions
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9
drivers/nvme/host/core.c
View File

@ -2929,7 +2929,7 @@ int nvme_get_log(struct nvme_ctrl *ctrl, u32 nsid, u8 log_page, u8 lsp, u8 csi,
static int nvme_get_effects_log(struct nvme_ctrl *ctrl, u8 csi,
struct nvme_effects_log **log)
{
struct nvme_cel *cel = xa_load(&ctrl->cels, csi);
struct nvme_effects_log *cel = xa_load(&ctrl->cels, csi);
int ret;
if (cel)
@ -2940,16 +2940,15 @@ static int nvme_get_effects_log(struct nvme_ctrl *ctrl, u8 csi,
return -ENOMEM;
ret = nvme_get_log(ctrl, 0x00, NVME_LOG_CMD_EFFECTS, 0, csi,
&cel->log, sizeof(cel->log), 0);
cel, sizeof(*cel), 0);
if (ret) {
kfree(cel);
return ret;
}
cel->csi = csi;
xa_store(&ctrl->cels, cel->csi, cel, GFP_KERNEL);
xa_store(&ctrl->cels, csi, cel, GFP_KERNEL);
out:
*log = &cel->log;
*log = cel;
return 0;
}

6
drivers/nvme/host/nvme.h
View File

@ -226,12 +226,6 @@ struct nvme_fault_inject {
#endif
};
struct nvme_cel {
struct list_head entry;
struct nvme_effects_log log;
u8 csi;
};
struct nvme_ctrl {
bool comp_seen;
enum nvme_ctrl_state state;