mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-29 22:02:02 +00:00
Code Issues Releases Wiki Activity

for-linus-20180511

Browse source 
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJa9gfhAAoJEPfTWPspceCm1vkP/3sNyf+FJy0Jz+EEHN01wJZP
 z77IRN+r5dKIi2bnOpfVSRTpEyCP9QTOAmv1waNygMFG6OcVmDFsgFoe/fnqGVo8
 VZjiQ+rpVrP8rEXzi1nMJunuImmx3JIV8E44+IKWKulipxHy38WXy73tWSEBrkoN
 uvL2UGJZOaKMoxC8XRsqDK/JVrhFSif44hNp8STPAo3e3YBPs95xJpV5qeIlJ8i1
 K2CXIiLVUUyM17vnW7dZR+nMoXHMXbQWwWpbWvgZ/ZDpPREHHddG+9NRkrinkGZI
 pLIyyPcamFifhiFvbV+3oWDiG/f/2CXFo45iO/uuxxW8JQgCMyQq4TukiTYrlbCt
 ciayjj0MQy8lF0IRIuFSgTyxp8iJrBYJEkaqBZcIRNdMTEFnE/ig43G7i7LqmZon
 7YjCC1EBZ6UNKgXaazqX+573wFUScCHMcmHcTWqE4Yfj93Q8mVTVedyYaJTwFSIq
 bNM2dspae+4iBxQa3z4w66dIcDC5ngJyKq2w2YdcO3H4KnT3FpTp/yv8GGW9y8lZ
 JiP2MYA2j4G3JtJLE40L6L2FnmI70APbHSX1JiLsS22J4UpLGElo8NUe5uwYPd/u
 jy7J6VAu/sl6e/+PlBIRV01pOGXzPSg3Fis9jZFtZJy2zddZVw+grapI6cs3o1Hq
 DYZnS0nFd2GmvnKmTI9p
 =Oq/z
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20180511' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Just a few NVMe fixes this round - one fixing a use-after-free, one
  fixes the return value after controller reset, and the last one fixes
  an issue where some drives will spuriously EIO. We should get these
  into 4.17"

* tag 'for-linus-20180511' of git://git.kernel.dk/linux-block:
  nvme: add quirk to force medium priority for SQ creation
  nvme: Fix sync controller reset return
  nvme: fix use-after-free in nvme_free_ns_head
This commit is contained in:
Linus Torvalds 2018-05-12 10:55:48 -07:00
commit 0d4cafd12f
3 changed files with 23 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/nvme/host/core.c
View file

@ -99,6 +99,7 @@ static struct class *nvme_subsys_class;
static void nvme_ns_remove(struct nvme_ns *ns);
static int nvme_revalidate_disk(struct gendisk *disk);
static void nvme_put_subsystem(struct nvme_subsystem *subsys);
int nvme_reset_ctrl(struct nvme_ctrl *ctrl)
{
@ -117,7 +118,8 @@ int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl)
ret = nvme_reset_ctrl(ctrl);
if (!ret) {
flush_work(&ctrl->reset_work);
if (ctrl->state != NVME_CTRL_LIVE)
if (ctrl->state != NVME_CTRL_LIVE &&
ctrl->state != NVME_CTRL_ADMIN_ONLY)
ret = -ENETRESET;
}
@ -350,6 +352,7 @@ static void nvme_free_ns_head(struct kref *ref)
ida_simple_remove(&head->subsys->ns_ida, head->instance);
list_del_init(&head->entry);
cleanup_srcu_struct(&head->srcu);
nvme_put_subsystem(head->subsys);
kfree(head);
}
@ -2861,6 +2864,9 @@ static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
goto out_cleanup_srcu;
list_add_tail(&head->entry, &ctrl->subsys->nsheads);
kref_get(&ctrl->subsys->ref);
return head;
out_cleanup_srcu:
cleanup_srcu_struct(&head->srcu);

5
drivers/nvme/host/nvme.h
View file

@ -84,6 +84,11 @@ enum nvme_quirks {
* Supports the LighNVM command set if indicated in vs[1].
*/
NVME_QUIRK_LIGHTNVM = (1 << 6),
/*
* Set MEDIUM priority on SQ creation
*/
NVME_QUIRK_MEDIUM_PRIO_SQ = (1 << 7),
};
/*

12
drivers/nvme/host/pci.c
View file

@ -1093,9 +1093,18 @@ static int adapter_alloc_cq(struct nvme_dev *dev, u16 qid,
static int adapter_alloc_sq(struct nvme_dev *dev, u16 qid,
struct nvme_queue *nvmeq)
{
struct nvme_ctrl *ctrl = &dev->ctrl;
struct nvme_command c;
int flags = NVME_QUEUE_PHYS_CONTIG;
/*
* Some drives have a bug that auto-enables WRRU if MEDIUM isn't
* set. Since URGENT priority is zeroes, it makes all queues
* URGENT.
*/
if (ctrl->quirks & NVME_QUIRK_MEDIUM_PRIO_SQ)
flags |= NVME_SQ_PRIO_MEDIUM;
/*
* Note: we (ab)use the fact that the prp fields survive if no data
* is attached to the request.
@ -2701,7 +2710,8 @@ static const struct pci_device_id nvme_id_table[] = {
.driver_data = NVME_QUIRK_STRIPE_SIZE |
NVME_QUIRK_DEALLOCATE_ZEROES, },
{ PCI_VDEVICE(INTEL, 0xf1a5), /* Intel 600P/P3100 */
.driver_data = NVME_QUIRK_NO_DEEPEST_PS },
.driver_data = NVME_QUIRK_NO_DEEPEST_PS |
NVME_QUIRK_MEDIUM_PRIO_SQ },
{ PCI_VDEVICE(INTEL, 0x5845), /* Qemu emulated controller */
.driver_data = NVME_QUIRK_IDENTIFY_CNS, },
{ PCI_DEVICE(0x1c58, 0x0003), /* HGST adapter */