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authorPaolo Abeni <pabeni@redhat.com>2020-11-19 11:45:54 -0800
committerJakub Kicinski <kuba@kernel.org>2020-11-20 15:33:24 -0800
commitb2771d2419fa6e978dec9ba6ccb93c5c76106374 (patch)
treecfbbab69c9633e9aab7a5fbda7423b8a3dd8aaa3
parent3cd336c517990850897f50845270be216d2aaca8 (diff)
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mptcp: drop WORKER_RUNNING status bit
Only mptcp_close() can actually cancel the workqueue, no need to add and use this flag. Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--net/mptcp/protocol.c8
-rw-r--r--net/mptcp/protocol.h1
2 files changed, 1 insertions, 8 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index aeda4357de9a..1aaf58c59f41 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -1862,7 +1862,6 @@ static void mptcp_worker(struct work_struct *work)
int state, ret;
lock_sock(sk);
- set_bit(MPTCP_WORKER_RUNNING, &msk->flags);
state = sk->sk_state;
if (unlikely(state == TCP_CLOSE))
goto unlock;
@@ -1940,7 +1939,6 @@ reset_unlock:
mptcp_reset_timer(sk);
unlock:
- clear_bit(MPTCP_WORKER_RUNNING, &msk->flags);
release_sock(sk);
sock_put(sk);
}
@@ -2011,11 +2009,7 @@ static void mptcp_cancel_work(struct sock *sk)
{
struct mptcp_sock *msk = mptcp_sk(sk);
- /* if called by the work itself, do not try to cancel the work, or
- * we will hang.
- */
- if (!test_bit(MPTCP_WORKER_RUNNING, &msk->flags) &&
- cancel_work_sync(&msk->work))
+ if (cancel_work_sync(&msk->work))
__sock_put(sk);
}
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index b4c8dbe9236b..10fffc5de9e4 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -91,7 +91,6 @@
#define MPTCP_WORK_EOF 3
#define MPTCP_FALLBACK_DONE 4
#define MPTCP_WORK_CLOSE_SUBFLOW 5
-#define MPTCP_WORKER_RUNNING 6
static inline bool before64(__u64 seq1, __u64 seq2)
{