Commit 95ed690e authored by Florian Westphal's avatar Florian Westphal Committed by Jakub Kicinski

mptcp: split mptcp_clean_una function

mptcp_clean_una() will wake writers in case memory could be reclaimed.
When called from mptcp_sendmsg the wakeup code isn't needed.

Move the wakeup to a new helper and then use that from the mptcp worker.
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 5a369ca6
......@@ -853,19 +853,25 @@ static void mptcp_clean_una(struct sock *sk)
}
out:
if (cleaned) {
if (cleaned)
sk_mem_reclaim_partial(sk);
}
/* Only wake up writers if a subflow is ready */
if (mptcp_is_writeable(msk)) {
set_bit(MPTCP_SEND_SPACE, &mptcp_sk(sk)->flags);
smp_mb__after_atomic();
static void mptcp_clean_una_wakeup(struct sock *sk)
{
struct mptcp_sock *msk = mptcp_sk(sk);
/* set SEND_SPACE before sk_stream_write_space clears
* NOSPACE
*/
sk_stream_write_space(sk);
}
mptcp_clean_una(sk);
/* Only wake up writers if a subflow is ready */
if (mptcp_is_writeable(msk)) {
set_bit(MPTCP_SEND_SPACE, &msk->flags);
smp_mb__after_atomic();
/* set SEND_SPACE before sk_stream_write_space clears
* NOSPACE
*/
sk_stream_write_space(sk);
}
}
......@@ -1769,7 +1775,7 @@ static void mptcp_worker(struct work_struct *work)
long timeo = 0;
lock_sock(sk);
mptcp_clean_una(sk);
mptcp_clean_una_wakeup(sk);
mptcp_check_data_fin_ack(sk);
__mptcp_flush_join_list(msk);
if (test_and_clear_bit(MPTCP_WORK_CLOSE_SUBFLOW, &msk->flags))
......
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