mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-18 10:35:55 +00:00
Code Issues Releases Activity

Add a mutex to each namespace, for general locking operations on the namespace.

Browse Source 
Sponsored by:	Intel
This commit is contained in:
Jim Harris 2013-04-12 17:41:24 +00:00
parent a90b810492
commit 97fafe2580
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=249418
2 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/dev/nvme/nvme_ns.c
View File

@ -300,6 +300,17 @@ nvme_ns_construct(struct nvme_namespace *ns, uint16_t id,
ns->ctrlr = ctrlr;
ns->id = id;
/*
* Namespaces are reconstructed after a controller reset, so check
* to make sure we only call mtx_init once on each mtx.
*
* TODO: Move this somewhere where it gets called at controller
* construction time, which is not invoked as part of each
* controller reset.
*/
if (!mtx_initialized(&ns->lock))
mtx_init(&ns->lock, "nvme ns lock", NULL, MTX_DEF);
#ifdef CHATHAM2
if (pci_get_devid(ctrlr->dev) == CHATHAM_PCI_ID)
nvme_ns_populate_chatham_data(ns);

1
sys/dev/nvme/nvme_private.h
View File

@ -238,6 +238,7 @@ struct nvme_namespace {
uint16_t flags;
struct cdev *cdev;
void *cons_cookie[NVME_MAX_CONSUMERS];
struct mtx lock;
};
/*