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authorAkinobu Mita <akinobu.mita@gmail.com>2019-06-20 08:49:02 +0200
committerChristoph Hellwig <hch@lst.de>2019-06-21 11:15:50 +0200
commita3646451edd52ba238cbe4f618aaf6eb9bf9d60c (patch)
treebe62e299f7f760e27819a07a06ecd447e4977441 /drivers/nvme/host/nvme.h
parenta5448fdc469d67da99728a132229aba5fce8f67a (diff)
nvme: prepare for fault injection into admin commands
Currenlty fault injection support for nvme only enables to inject errors into the commands submitted to I/O queues. In preparation for fault injection into the admin commands, this makes the helper functions independent of struct nvme_ns. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
-rw-r--r--drivers/nvme/host/nvme.h34
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 038b8931d9e5..8f907576efb6 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -146,6 +146,15 @@ enum nvme_ctrl_state {
NVME_CTRL_DEAD,
};
+struct nvme_fault_inject {
+#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
+ struct fault_attr attr;
+ struct dentry *parent;
+ bool dont_retry; /* DNR, do not retry */
+ u16 status; /* status code */
+#endif
+};
+
struct nvme_ctrl {
bool comp_seen;
enum nvme_ctrl_state state;
@@ -313,15 +322,6 @@ struct nvme_ns_head {
#endif
};
-#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
-struct nvme_fault_inject {
- struct fault_attr attr;
- struct dentry *parent;
- bool dont_retry; /* DNR, do not retry */
- u16 status; /* status code */
-};
-#endif
-
struct nvme_ns {
struct list_head list;
@@ -349,9 +349,7 @@ struct nvme_ns {
#define NVME_NS_ANA_PENDING 2
u16 noiob;
-#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
struct nvme_fault_inject fault_inject;
-#endif
};
@@ -372,12 +370,18 @@ struct nvme_ctrl_ops {
};
#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
-void nvme_fault_inject_init(struct nvme_ns *ns);
-void nvme_fault_inject_fini(struct nvme_ns *ns);
+void nvme_fault_inject_init(struct nvme_fault_inject *fault_inj,
+ const char *dev_name);
+void nvme_fault_inject_fini(struct nvme_fault_inject *fault_inject);
void nvme_should_fail(struct request *req);
#else
-static inline void nvme_fault_inject_init(struct nvme_ns *ns) {}
-static inline void nvme_fault_inject_fini(struct nvme_ns *ns) {}
+static inline void nvme_fault_inject_init(struct nvme_fault_inject *fault_inj,
+ const char *dev_name)
+{
+}
+static inline void nvme_fault_inject_fini(struct nvme_fault_inject *fault_inj)
+{
+}
static inline void nvme_should_fail(struct request *req) {}
#endif