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| author |   Trond Myklebust <trondmy@gmail.com> | 2019-04-07 13:58:44 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-04-25 14:18:12 -0400 |
| commit | ae67bd3821bb0a54d97e7883d211196637d487a9 (patch) | |
| tree | 351a54fd10a71f6c76d5e8d8a8ce323c9252192e /include/trace | |
| parent | Linux 5.1-rc6 (diff) | |
| download | linux-dev-ae67bd3821bb0a54d97e7883d211196637d487a9.tar.xz linux-dev-ae67bd3821bb0a54d97e7883d211196637d487a9.zip | |
SUNRPC: Fix up task signalling
The RPC_TASK_KILLED flag should really not be set from another context
because it can clobber data in the struct task when task->tk_flags is
changed non-atomically.
Let's therefore swap out RPC_TASK_KILLED with an atomic flag, and add
a function to set that flag and safely wake up the task.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/sunrpc.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 7e899e635d33..5e3b77d9daa7 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -82,7 +82,6 @@ TRACE_DEFINE_ENUM(RPC_TASK_SWAPPER); TRACE_DEFINE_ENUM(RPC_CALL_MAJORSEEN); TRACE_DEFINE_ENUM(RPC_TASK_ROOTCREDS); TRACE_DEFINE_ENUM(RPC_TASK_DYNAMIC); -TRACE_DEFINE_ENUM(RPC_TASK_KILLED); TRACE_DEFINE_ENUM(RPC_TASK_SOFT); TRACE_DEFINE_ENUM(RPC_TASK_SOFTCONN); TRACE_DEFINE_ENUM(RPC_TASK_SENT); @@ -97,7 +96,6 @@ TRACE_DEFINE_ENUM(RPC_TASK_NO_RETRANS_TIMEOUT); { RPC_CALL_MAJORSEEN, "MAJORSEEN" }, \ { RPC_TASK_ROOTCREDS, "ROOTCREDS" }, \ { RPC_TASK_DYNAMIC, "DYNAMIC" }, \ - { RPC_TASK_KILLED, "KILLED" }, \ { RPC_TASK_SOFT, "SOFT" }, \ { RPC_TASK_SOFTCONN, "SOFTCONN" }, \ { RPC_TASK_SENT, "SENT" }, \ @@ -111,6 +109,7 @@ TRACE_DEFINE_ENUM(RPC_TASK_ACTIVE); TRACE_DEFINE_ENUM(RPC_TASK_NEED_XMIT); TRACE_DEFINE_ENUM(RPC_TASK_NEED_RECV); TRACE_DEFINE_ENUM(RPC_TASK_MSG_PIN_WAIT); +TRACE_DEFINE_ENUM(RPC_TASK_SIGNALLED); #define rpc_show_runstate(flags) \ __print_flags(flags, "|", \ @@ -119,7 +118,8 @@ TRACE_DEFINE_ENUM(RPC_TASK_MSG_PIN_WAIT); { (1UL << RPC_TASK_ACTIVE), "ACTIVE" }, \ { (1UL << RPC_TASK_NEED_XMIT), "NEED_XMIT" }, \ { (1UL << RPC_TASK_NEED_RECV), "NEED_RECV" }, \ - { (1UL << RPC_TASK_MSG_PIN_WAIT), "MSG_PIN_WAIT" }) + { (1UL << RPC_TASK_MSG_PIN_WAIT), "MSG_PIN_WAIT" }, \ + { (1UL << RPC_TASK_SIGNALLED), "SIGNALLED" }) DECLARE_EVENT_CLASS(rpc_task_running, |