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arch: Mass conversion of smp_mb__*()

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Mostly scripted conversion of the smp_mb__* barriers.

Signed-off-by: Peter Zijlstra <[email protected]>
Acked-by: Paul E. McKenney <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Cc: Linus Torvalds <[email protected]>
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Peter Zijlstra 2014-03-17 18:06:10 +01:00 • committed by Ingo Molnar
commit 4e857c58ef
106 changed files with 284 additions and 288 deletions
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4
net/rds/ib_recv.c
View file

@ -598,7 +598,7 @@ static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq,
{
atomic64_set(&ic->i_ack_next, seq);
if (ack_required) {
smp_mb__before_clear_bit();
smp_mb__before_atomic();
set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
}
}
@ -606,7 +606,7 @@ static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq,
static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
{
clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
smp_mb__after_clear_bit();
smp_mb__after_atomic();
return atomic64_read(&ic->i_ack_next);
}

4
net/rds/iw_recv.c
View file

@ -429,7 +429,7 @@ static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq,
{
atomic64_set(&ic->i_ack_next, seq);
if (ack_required) {
smp_mb__before_clear_bit();
smp_mb__before_atomic();
set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
}
}
@ -437,7 +437,7 @@ static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq,
static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
{
clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
smp_mb__after_clear_bit();
smp_mb__after_atomic();
return atomic64_read(&ic->i_ack_next);
}

6
net/rds/send.c
View file

@ -107,7 +107,7 @@ static int acquire_in_xmit(struct rds_connection *conn)
static void release_in_xmit(struct rds_connection *conn)
{
clear_bit(RDS_IN_XMIT, &conn->c_flags);
smp_mb__after_clear_bit();
smp_mb__after_atomic();
/*
* We don't use wait_on_bit()/wake_up_bit() because our waking is in a
* hot path and finding waiters is very rare. We don't want to walk
@ -661,7 +661,7 @@ void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
/* order flag updates with spin locks */
if (!list_empty(&list))
smp_mb__after_clear_bit();
smp_mb__after_atomic();
spin_unlock_irqrestore(&conn->c_lock, flags);
@ -691,7 +691,7 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest)
}
/* order flag updates with the rs lock */
smp_mb__after_clear_bit();
smp_mb__after_atomic();
spin_unlock_irqrestore(&rs->rs_lock, flags);

2
net/rds/tcp_send.c
View file

@ -93,7 +93,7 @@ int rds_tcp_xmit(struct rds_connection *conn, struct rds_message *rm,
rm->m_ack_seq = tc->t_last_sent_nxt +
sizeof(struct rds_header) +
be32_to_cpu(rm->m_inc.i_hdr.h_len) - 1;
smp_mb__before_clear_bit();
smp_mb__before_atomic();
set_bit(RDS_MSG_HAS_ACK_SEQ, &rm->m_flags);
tc->t_last_expected_una = rm->m_ack_seq + 1;