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authorTrond Myklebust <trond.myklebust@hammerspace.com>2019-02-27 15:37:36 -0500
committerTrond Myklebust <trond.myklebust@hammerspace.com>2019-03-01 16:20:16 -0500
commita79f194aa4879e9baad118c3f8bb2ca24dbef765 (patch)
tree202028379bf0ff4ac68952614d76ab434cf9da50 /include/linux/sunrpc
parent39a5201a2b450c2bf0447fb65305654c65f7f954 (diff)
NFSv4/flexfiles: Abort I/O early if the layout segment was invalidated
If a layout segment gets invalidated while a pNFS I/O operation is queued for transmission, then we ideally want to abort immediately. This is particularly the case when there is a large number of I/O related RPCs queued in the RPC layer, and the layout segment gets invalidated due to an ENOSPC error, or an EACCES (because the client was fenced). We may end up forced to spam the MDS with a lot of otherwise unnecessary LAYOUTERRORs after that I/O fails. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/sched.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 219aa3910a0c..52d41d0c1ae1 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -97,6 +97,7 @@ typedef void (*rpc_action)(struct rpc_task *);
struct rpc_call_ops {
void (*rpc_call_prepare)(struct rpc_task *, void *);
+ void (*rpc_call_prepare_transmit)(struct rpc_task *, void *);
void (*rpc_call_done)(struct rpc_task *, void *);
void (*rpc_count_stats)(struct rpc_task *, void *);
void (*rpc_release)(void *);