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authorJames Smart <jsmart2021@gmail.com>2018-05-26 00:02:23 +0300
committerChristoph Hellwig <hch@lst.de>2018-05-30 09:03:23 +0300
commitab4f47a9f4a12603a1806230d44ead2e54158f85 (patch)
tree83ed5fc851782bfd59ccdff8c310aaedb1a7f2ad /drivers/nvme/host
parent5de815a7eedfacf593817ef34634eaa9b75a1482 (diff)
downloadlinux-ab4f47a9f4a12603a1806230d44ead2e54158f85.tar.xz
nvme: allow duplicate controller if prior controller being deleted
The current checks for whether a new controller request "matches" an existing controller ignores controller state and checks identity strings. There are cases where an existing controller may be in its last steps of deletion when they are "matched" by a new connection. Change the behavior so that the new connection ignores controllers that are deleted. Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host')
-rw-r--r--drivers/nvme/host/fabrics.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index ef46c915b7b5..0cf0460a5c92 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -139,7 +139,9 @@ static inline bool
nvmf_ctlr_matches_baseopts(struct nvme_ctrl *ctrl,
struct nvmf_ctrl_options *opts)
{
- if (strcmp(opts->subsysnqn, ctrl->opts->subsysnqn) ||
+ if (ctrl->state == NVME_CTRL_DELETING ||
+ ctrl->state == NVME_CTRL_DEAD ||
+ strcmp(opts->subsysnqn, ctrl->opts->subsysnqn) ||
strcmp(opts->host->nqn, ctrl->opts->host->nqn) ||
memcmp(&opts->host->id, &ctrl->opts->host->id, sizeof(uuid_t)))
return false;