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Subject[PATCH net-next 3/5] mptcp: add do_check_data_fin to replace copied
Date
From: Geliang Tang <geliang.tang@suse.com>

This patch adds a new bool variable 'do_check_data_fin' to replace the
original int variable 'copied' in __mptcp_push_pending(), check it to
determine whether to call __mptcp_check_send_data_fin().

Suggested-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
net/mptcp/protocol.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index fc782d693eaf..47931f6cf387 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -1538,8 +1538,9 @@ void __mptcp_push_pending(struct sock *sk, unsigned int flags)
struct mptcp_sendmsg_info info = {
.flags = flags,
};
+ bool do_check_data_fin = false;
struct mptcp_data_frag *dfrag;
- int len, copied = 0;
+ int len;

while ((dfrag = mptcp_send_head(sk))) {
info.sent = dfrag->already_sent;
@@ -1574,8 +1575,8 @@ void __mptcp_push_pending(struct sock *sk, unsigned int flags)
goto out;
}

+ do_check_data_fin = true;
info.sent += ret;
- copied += ret;
len -= ret;

mptcp_update_post_push(msk, dfrag, ret);
@@ -1591,7 +1592,7 @@ void __mptcp_push_pending(struct sock *sk, unsigned int flags)
/* ensure the rtx timer is running */
if (!mptcp_timer_pending(sk))
mptcp_reset_timer(sk);
- if (copied)
+ if (do_check_data_fin)
__mptcp_check_send_data_fin(sk);
}

--
2.37.2
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