This is a note to let you know that I've just added the patch titled
[PATCH 033/135] NVMe: fix build with CONFIG_NVM enabled
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
0033-NVMe-fix-build-with-CONFIG_NVM-enabled.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 949e31ee7225602105e4129b9a093d3fc546f701 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@xxxxxx>
Date: Thu, 3 Dec 2015 09:52:05 -0700
Subject: [PATCH 033/135] NVMe: fix build with CONFIG_NVM enabled
[ Upstream commit ac02dddec63385ffef1397d3f56cec4108bcafe9 ]
Looks like I didn't test with CONFIG_NVM enabled, and neither did
the build bot.
Most of this is really weird crazy shit in the lighnvm support, though.
Struct nvme_ns is a structure for the NVM I/O command set, and it has
no business poking into it. Second this commit:
commit 47b3115ae7b799be8b77b0f024215ad4f68d6460
Author: Wenwei Tao <ww.tao0320@xxxxxxxxx>
Date: Fri Nov 20 13:47:55 2015 +0100
nvme: lightnvm: use admin queues for admin cmds
Does even more crazy stuff. If a function gets a request_queue parameter
passed it'd better use that and not look for another one.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/nvme/host/lightnvm.c | 35 ++++++++++++++++-------------------
1 file changed, 16 insertions(+), 19 deletions(-)
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -274,7 +274,6 @@ static int init_grps(struct nvm_id *nvm_
static int nvme_nvm_identity(struct nvm_dev *nvmdev, struct nvm_id *nvm_id)
{
struct nvme_ns *ns = nvmdev->q->queuedata;
- struct nvme_dev *dev = ns->dev;
struct nvme_nvm_id *nvme_nvm_id;
struct nvme_nvm_command c = {};
int ret;
@@ -287,7 +286,7 @@ static int nvme_nvm_identity(struct nvm_
if (!nvme_nvm_id)
return -ENOMEM;
- ret = nvme_submit_sync_cmd(dev->admin_q, (struct nvme_command *)&c,
+ ret = nvme_submit_sync_cmd(ns->ctrl->admin_q, (struct nvme_command *)&c,
nvme_nvm_id, sizeof(struct nvme_nvm_id));
if (ret) {
ret = -EIO;
@@ -312,9 +311,8 @@ static int nvme_nvm_get_l2p_tbl(struct n
nvm_l2p_update_fn *update_l2p, void *priv)
{
struct nvme_ns *ns = nvmdev->q->queuedata;
- struct nvme_dev *dev = ns->dev;
struct nvme_nvm_command c = {};
- u32 len = queue_max_hw_sectors(dev->admin_q) << 9;
+ u32 len = queue_max_hw_sectors(ns->ctrl->admin_q) << 9;
u32 nlb_pr_rq = len / sizeof(u64);
u64 cmd_slba = slba;
void *entries;
@@ -332,10 +330,10 @@ static int nvme_nvm_get_l2p_tbl(struct n
c.l2p.slba = cpu_to_le64(cmd_slba);
c.l2p.nlb = cpu_to_le32(cmd_nlb);
- ret = nvme_submit_sync_cmd(dev->admin_q,
+ ret = nvme_submit_sync_cmd(ns->ctrl->admin_q,
(struct nvme_command *)&c, entries, len);
if (ret) {
- dev_err(dev->dev, "L2P table transfer failed (%d)\n",
+ dev_err(ns->ctrl->dev, "L2P table transfer failed (%d)\n",
ret);
ret = -EIO;
goto out;
@@ -361,7 +359,7 @@ static int nvme_nvm_get_bb_tbl(struct nv
{
struct request_queue *q = nvmdev->q;
struct nvme_ns *ns = q->queuedata;
- struct nvme_dev *dev = ns->dev;
+ struct nvme_ctrl *ctrl = ns->ctrl;
struct nvme_nvm_command c = {};
struct nvme_nvm_bb_tbl *bb_tbl;
int tblsz = sizeof(struct nvme_nvm_bb_tbl) + nr_blocks;
@@ -375,30 +373,30 @@ static int nvme_nvm_get_bb_tbl(struct nv
if (!bb_tbl)
return -ENOMEM;
- ret = nvme_submit_sync_cmd(dev->admin_q, (struct nvme_command *)&c,
+ ret = nvme_submit_sync_cmd(ctrl->admin_q, (struct nvme_command *)&c,
bb_tbl, tblsz);
if (ret) {
- dev_err(dev->dev, "get bad block table failed (%d)\n", ret);
+ dev_err(ctrl->dev, "get bad block table failed (%d)\n", ret);
ret = -EIO;
goto out;
}
if (bb_tbl->tblid[0] != 'B' || bb_tbl->tblid[1] != 'B' ||
bb_tbl->tblid[2] != 'L' || bb_tbl->tblid[3] != 'T') {
- dev_err(dev->dev, "bbt format mismatch\n");
+ dev_err(ctrl->dev, "bbt format mismatch\n");
ret = -EINVAL;
goto out;
}
if (le16_to_cpu(bb_tbl->verid) != 1) {
ret = -EINVAL;
- dev_err(dev->dev, "bbt version not supported\n");
+ dev_err(ctrl->dev, "bbt version not supported\n");
goto out;
}
if (le32_to_cpu(bb_tbl->tblks) != nr_blocks) {
ret = -EINVAL;
- dev_err(dev->dev, "bbt unsuspected blocks returned (%u!=%u)",
+ dev_err(ctrl->dev, "bbt unsuspected blocks returned (%u!=%u)",
le32_to_cpu(bb_tbl->tblks), nr_blocks);
goto out;
}
@@ -419,7 +417,6 @@ static int nvme_nvm_set_bb_tbl(struct nv
int type)
{
struct nvme_ns *ns = nvmdev->q->queuedata;
- struct nvme_dev *dev = ns->dev;
struct nvme_nvm_command c = {};
int ret = 0;
@@ -429,10 +426,10 @@ static int nvme_nvm_set_bb_tbl(struct nv
c.set_bb.nlb = cpu_to_le16(rqd->nr_pages - 1);
c.set_bb.value = type;
- ret = nvme_submit_sync_cmd(dev->admin_q, (struct nvme_command *)&c,
+ ret = nvme_submit_sync_cmd(ns->ctrl->admin_q, (struct nvme_command *)&c,
NULL, 0);
if (ret)
- dev_err(dev->dev, "set bad block table failed (%d)\n", ret);
+ dev_err(ns->ctrl->dev, "set bad block table failed (%d)\n", ret);
return ret;
}
@@ -520,9 +517,8 @@ static int nvme_nvm_erase_block(struct n
static void *nvme_nvm_create_dma_pool(struct nvm_dev *nvmdev, char *name)
{
struct nvme_ns *ns = nvmdev->q->queuedata;
- struct nvme_dev *dev = ns->dev;
- return dma_pool_create(name, dev->dev, PAGE_SIZE, PAGE_SIZE, 0);
+ return dma_pool_create(name, ns->ctrl->dev, PAGE_SIZE, PAGE_SIZE, 0);
}
static void nvme_nvm_destroy_dma_pool(void *pool)
@@ -580,8 +576,9 @@ void nvme_nvm_unregister(struct request_
int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id)
{
- struct nvme_dev *dev = ns->dev;
- struct pci_dev *pdev = to_pci_dev(dev->dev);
+ struct nvme_ctrl *ctrl = ns->ctrl;
+ /* XXX: this is poking into PCI structures from generic code! */
+ struct pci_dev *pdev = to_pci_dev(ctrl->dev);
/* QEMU NVMe simulator - PCI ID + Vendor specific bit */
if (pdev->vendor == PCI_VENDOR_ID_CNEX &&
Patches currently in stable-queue which might be from hch@xxxxxx are
queue-4.4/0120-block-fix-blk_rq_get_max_sectors-for-driver-private-.patch
queue-4.4/0033-NVMe-fix-build-with-CONFIG_NVM-enabled.patch
queue-4.4/0116-blk-mq-End-unstarted-requests-on-dying-queue.patch
--
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