xprtrdma: Refactor MR recovery work queues
I found that commit ead3f26e359e ("xprtrdma: Add ro_unmap_safe
memreg method"), which introduces ro_unmap_safe, never wired up the
FMR recovery worker.
The FMR and FRWR recovery work queues both do the same thing.
Instead of setting up separate individual work queues for this,
schedule a delayed worker to deal with them, since recovering MRs is
not performance-critical.
Fixes: ead3f26e359e ("xprtrdma: Add ro_unmap_safe memreg method")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 04696c0..4e03037 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -245,7 +245,6 @@
struct rpcrdma_fmr fmr;
struct rpcrdma_frmr frmr;
};
- struct work_struct mw_work;
struct rpcrdma_xprt *mw_xprt;
struct list_head mw_all;
};
@@ -341,6 +340,10 @@
struct list_head rb_allreqs;
u32 rb_bc_max_requests;
+
+ spinlock_t rb_recovery_lock; /* protect rb_stale_mrs */
+ struct list_head rb_stale_mrs;
+ struct delayed_work rb_recovery_worker;
};
#define rdmab_to_ia(b) (&container_of((b), struct rpcrdma_xprt, rx_buf)->rx_ia)
@@ -387,6 +390,8 @@
unsigned long bad_reply_count;
unsigned long nomsg_call_count;
unsigned long bcall_count;
+ unsigned long mrs_recovered;
+ unsigned long mrs_orphaned;
};
/*
@@ -400,6 +405,7 @@
struct rpcrdma_req *);
void (*ro_unmap_safe)(struct rpcrdma_xprt *,
struct rpcrdma_req *, bool);
+ void (*ro_recover_mr)(struct rpcrdma_mw *);
int (*ro_open)(struct rpcrdma_ia *,
struct rpcrdma_ep *,
struct rpcrdma_create_data_internal *);
@@ -477,6 +483,8 @@
void rpcrdma_recv_buffer_get(struct rpcrdma_req *);
void rpcrdma_recv_buffer_put(struct rpcrdma_rep *);
+void rpcrdma_defer_mr_recovery(struct rpcrdma_mw *);
+
struct rpcrdma_regbuf *rpcrdma_alloc_regbuf(struct rpcrdma_ia *,
size_t, gfp_t);
void rpcrdma_free_regbuf(struct rpcrdma_ia *,
@@ -484,9 +492,6 @@
int rpcrdma_ep_post_extra_recv(struct rpcrdma_xprt *, unsigned int);
-int frwr_alloc_recovery_wq(void);
-void frwr_destroy_recovery_wq(void);
-
int rpcrdma_alloc_wq(void);
void rpcrdma_destroy_wq(void);