skb->destructor = sctp_sock_rfree;
atomic_add(event->rmem_len, &sk->sk_rmem_alloc);
/*
- * This mimics the behavior of
- * sk_stream_set_owner_r
+ * This mimics the behavior of skb_set_owner_r
*/
sk->sk_forward_alloc -= event->rmem_len;
}
return sk->sk_wmem_queued < sk->sk_sndbuf;
}
-extern void sk_stream_rfree(struct sk_buff *skb);
-
-static inline void sk_stream_set_owner_r(struct sk_buff *skb, struct sock *sk)
-{
- skb->sk = sk;
- skb->destructor = sk_stream_rfree;
- atomic_add(skb->truesize, &sk->sk_rmem_alloc);
- sk->sk_forward_alloc -= skb->truesize;
-}
-
-static inline void sk_stream_free_skb(struct sock *sk, struct sk_buff *skb)
-{
- skb_truesize_check(skb);
- sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
- sk->sk_wmem_queued -= skb->truesize;
- sk->sk_forward_alloc += skb->truesize;
- __kfree_skb(skb);
-}
-
/* The per-socket spinlock must be held here. */
static inline void sk_add_backlog(struct sock *sk, struct sk_buff *skb)
{
/*
* Pressure flag: try to collapse.
* Technical note: it is used by multiple contexts non atomically.
- * All the sk_stream_mem_schedule() is of this nature: accounting
+ * All the __sk_mem_schedule() is of this nature: accounting
* is strict, actions are advisory and have some latency.
*/
int *memory_pressure;
return &container_of(socket, struct socket_alloc, socket)->vfs_inode;
}
-extern void __sk_stream_mem_reclaim(struct sock *sk);
-extern int sk_stream_mem_schedule(struct sock *sk, int size, int kind);
+/*
+ * Functions for memory accounting
+ */
+extern int __sk_mem_schedule(struct sock *sk, int size, int kind);
+extern void __sk_mem_reclaim(struct sock *sk);
-#define SK_STREAM_MEM_QUANTUM ((int)PAGE_SIZE)
-#define SK_STREAM_MEM_QUANTUM_SHIFT ilog2(SK_STREAM_MEM_QUANTUM)
+#define SK_MEM_QUANTUM ((int)PAGE_SIZE)
+#define SK_MEM_QUANTUM_SHIFT ilog2(SK_MEM_QUANTUM)
+#define SK_MEM_SEND 0
+#define SK_MEM_RECV 1
-static inline int sk_stream_pages(int amt)
+static inline int sk_mem_pages(int amt)
{
- return (amt + SK_STREAM_MEM_QUANTUM - 1) >> SK_STREAM_MEM_QUANTUM_SHIFT;
+ return (amt + SK_MEM_QUANTUM - 1) >> SK_MEM_QUANTUM_SHIFT;
}
-static inline void sk_stream_mem_reclaim(struct sock *sk)
+static inline int sk_has_account(struct sock *sk)
{
- if (sk->sk_forward_alloc >= SK_STREAM_MEM_QUANTUM)
- __sk_stream_mem_reclaim(sk);
+ /* return true if protocol supports memory accounting */
+ return !!sk->sk_prot->memory_allocated;
}
-static inline int sk_stream_rmem_schedule(struct sock *sk, struct sk_buff *skb)
+static inline int sk_wmem_schedule(struct sock *sk, int size)
{
- return (int)skb->truesize <= sk->sk_forward_alloc ||
- sk_stream_mem_schedule(sk, skb->truesize, 1);
+ if (!sk_has_account(sk))
+ return 1;
+ return size <= sk->sk_forward_alloc ||
+ __sk_mem_schedule(sk, size, SK_MEM_SEND);
}
-static inline int sk_stream_wmem_schedule(struct sock *sk, int size)
+static inline int sk_rmem_schedule(struct sock *sk, int size)
{
+ if (!sk_has_account(sk))
+ return 1;
return size <= sk->sk_forward_alloc ||
- sk_stream_mem_schedule(sk, size, 0);
+ __sk_mem_schedule(sk, size, SK_MEM_RECV);
+}
+
+static inline void sk_mem_reclaim(struct sock *sk)
+{
+ if (!sk_has_account(sk))
+ return;
+ if (sk->sk_forward_alloc >= SK_MEM_QUANTUM)
+ __sk_mem_reclaim(sk);
+}
+
+static inline void sk_mem_charge(struct sock *sk, int size)
+{
+ if (!sk_has_account(sk))
+ return;
+ sk->sk_forward_alloc -= size;
+}
+
+static inline void sk_mem_uncharge(struct sock *sk, int size)
+{
+ if (!sk_has_account(sk))
+ return;
+ sk->sk_forward_alloc += size;
+}
+
+static inline void sk_wmem_free_skb(struct sock *sk, struct sk_buff *skb)
+{
+ skb_truesize_check(skb);
+ sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
+ sk->sk_wmem_queued -= skb->truesize;
+ sk_mem_uncharge(sk, skb->truesize);
+ __kfree_skb(skb);
}
/* Used by processes to "lock" a socket state, so that
extern void sk_setup_caps(struct sock *sk, struct dst_entry *dst);
-static inline void sk_charge_skb(struct sock *sk, struct sk_buff *skb)
-{
- sk->sk_wmem_queued += skb->truesize;
- sk->sk_forward_alloc -= skb->truesize;
-}
-
static inline int skb_copy_to_page(struct sock *sk, char __user *from,
struct sk_buff *skb, struct page *page,
int off, int copy)
skb->data_len += copy;
skb->truesize += copy;
sk->sk_wmem_queued += copy;
- sk->sk_forward_alloc -= copy;
+ sk_mem_charge(sk, copy);
return 0;
}
skb->sk = sk;
skb->destructor = sock_rfree;
atomic_add(skb->truesize, &sk->sk_rmem_alloc);
+ sk_mem_charge(sk, skb->truesize);
}
extern void sk_reset_timer(struct sock *sk, struct timer_list* timer,
struct sk_buff *skb;
while ((skb = __skb_dequeue(&sk->sk_write_queue)) != NULL)
- sk_stream_free_skb(sk, skb);
- sk_stream_mem_reclaim(sk);
+ sk_wmem_free_skb(sk, skb);
+ sk_mem_reclaim(sk);
}
static inline struct sk_buff *tcp_write_queue_head(struct sock *sk)
void skb_free_datagram(struct sock *sk, struct sk_buff *skb)
{
kfree_skb(skb);
+ sk_mem_reclaim(sk);
}
/**
}
kfree_skb(skb);
+ sk_mem_reclaim(sk);
return err;
}
if (err)
goto out;
+ if (!sk_rmem_schedule(sk, skb->truesize)) {
+ err = -ENOBUFS;
+ goto out;
+ }
+
skb->dev = NULL;
skb_set_owner_r(skb, sk);
{
struct sock *sk = skb->sk;
+ skb_truesize_check(skb);
atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
+ sk_mem_uncharge(skb->sk, skb->truesize);
}
EXPORT_SYMBOL(sk_wait_data);
+/**
+ * __sk_mem_schedule - increase sk_forward_alloc and memory_allocated
+ * @sk: socket
+ * @size: memory size to allocate
+ * @kind: allocation type
+ *
+ * If kind is SK_MEM_SEND, it means wmem allocation. Otherwise it means
+ * rmem allocation. This function assumes that protocols which have
+ * memory_pressure use sk_wmem_queued as write buffer accounting.
+ */
+int __sk_mem_schedule(struct sock *sk, int size, int kind)
+{
+ struct proto *prot = sk->sk_prot;
+ int amt = sk_mem_pages(size);
+ int allocated;
+
+ sk->sk_forward_alloc += amt * SK_MEM_QUANTUM;
+ allocated = atomic_add_return(amt, prot->memory_allocated);
+
+ /* Under limit. */
+ if (allocated <= prot->sysctl_mem[0]) {
+ if (prot->memory_pressure && *prot->memory_pressure)
+ *prot->memory_pressure = 0;
+ return 1;
+ }
+
+ /* Under pressure. */
+ if (allocated > prot->sysctl_mem[1])
+ if (prot->enter_memory_pressure)
+ prot->enter_memory_pressure();
+
+ /* Over hard limit. */
+ if (allocated > prot->sysctl_mem[2])
+ goto suppress_allocation;
+
+ /* guarantee minimum buffer size under pressure */
+ if (kind == SK_MEM_RECV) {
+ if (atomic_read(&sk->sk_rmem_alloc) < prot->sysctl_rmem[0])
+ return 1;
+ } else { /* SK_MEM_SEND */
+ if (sk->sk_type == SOCK_STREAM) {
+ if (sk->sk_wmem_queued < prot->sysctl_wmem[0])
+ return 1;
+ } else if (atomic_read(&sk->sk_wmem_alloc) <
+ prot->sysctl_wmem[0])
+ return 1;
+ }
+
+ if (prot->memory_pressure) {
+ if (!*prot->memory_pressure ||
+ prot->sysctl_mem[2] > atomic_read(prot->sockets_allocated) *
+ sk_mem_pages(sk->sk_wmem_queued +
+ atomic_read(&sk->sk_rmem_alloc) +
+ sk->sk_forward_alloc))
+ return 1;
+ }
+
+suppress_allocation:
+
+ if (kind == SK_MEM_SEND && sk->sk_type == SOCK_STREAM) {
+ sk_stream_moderate_sndbuf(sk);
+
+ /* Fail only if socket is _under_ its sndbuf.
+ * In this case we cannot block, so that we have to fail.
+ */
+ if (sk->sk_wmem_queued + size >= sk->sk_sndbuf)
+ return 1;
+ }
+
+ /* Alas. Undo changes. */
+ sk->sk_forward_alloc -= amt * SK_MEM_QUANTUM;
+ atomic_sub(amt, prot->memory_allocated);
+ return 0;
+}
+
+EXPORT_SYMBOL(__sk_mem_schedule);
+
+/**
+ * __sk_reclaim - reclaim memory_allocated
+ * @sk: socket
+ */
+void __sk_mem_reclaim(struct sock *sk)
+{
+ struct proto *prot = sk->sk_prot;
+
+ atomic_sub(sk->sk_forward_alloc / SK_MEM_QUANTUM,
+ prot->memory_allocated);
+ sk->sk_forward_alloc &= SK_MEM_QUANTUM - 1;
+
+ if (prot->memory_pressure && *prot->memory_pressure &&
+ (atomic_read(prot->memory_allocated) < prot->sysctl_mem[0]))
+ *prot->memory_pressure = 0;
+}
+
+EXPORT_SYMBOL(__sk_mem_reclaim);
+
+
/*
* Set of default routines for initialising struct proto_ops when
* the protocol does not support a particular function. In certain
EXPORT_SYMBOL(sk_stream_wait_memory);
-void sk_stream_rfree(struct sk_buff *skb)
-{
- struct sock *sk = skb->sk;
-
- skb_truesize_check(skb);
- atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
- sk->sk_forward_alloc += skb->truesize;
-}
-
-EXPORT_SYMBOL(sk_stream_rfree);
-
int sk_stream_error(struct sock *sk, int flags, int err)
{
if (err == -EPIPE)
EXPORT_SYMBOL(sk_stream_error);
-void __sk_stream_mem_reclaim(struct sock *sk)
-{
- atomic_sub(sk->sk_forward_alloc >> SK_STREAM_MEM_QUANTUM_SHIFT,
- sk->sk_prot->memory_allocated);
- sk->sk_forward_alloc &= SK_STREAM_MEM_QUANTUM - 1;
- if (*sk->sk_prot->memory_pressure &&
- (atomic_read(sk->sk_prot->memory_allocated) <
- sk->sk_prot->sysctl_mem[0]))
- *sk->sk_prot->memory_pressure = 0;
-}
-
-EXPORT_SYMBOL(__sk_stream_mem_reclaim);
-
-int sk_stream_mem_schedule(struct sock *sk, int size, int kind)
-{
- int amt = sk_stream_pages(size);
- struct proto *prot = sk->sk_prot;
-
- sk->sk_forward_alloc += amt * SK_STREAM_MEM_QUANTUM;
- atomic_add(amt, prot->memory_allocated);
-
- /* Under limit. */
- if (atomic_read(prot->memory_allocated) < prot->sysctl_mem[0]) {
- if (*prot->memory_pressure)
- *prot->memory_pressure = 0;
- return 1;
- }
-
- /* Over hard limit. */
- if (atomic_read(prot->memory_allocated) > prot->sysctl_mem[2]) {
- prot->enter_memory_pressure();
- goto suppress_allocation;
- }
-
- /* Under pressure. */
- if (atomic_read(prot->memory_allocated) > prot->sysctl_mem[1])
- prot->enter_memory_pressure();
-
- if (kind) {
- if (atomic_read(&sk->sk_rmem_alloc) < prot->sysctl_rmem[0])
- return 1;
- } else if (sk->sk_wmem_queued < prot->sysctl_wmem[0])
- return 1;
-
- if (!*prot->memory_pressure ||
- prot->sysctl_mem[2] > atomic_read(prot->sockets_allocated) *
- sk_stream_pages(sk->sk_wmem_queued +
- atomic_read(&sk->sk_rmem_alloc) +
- sk->sk_forward_alloc))
- return 1;
-
-suppress_allocation:
-
- if (!kind) {
- sk_stream_moderate_sndbuf(sk);
-
- /* Fail only if socket is _under_ its sndbuf.
- * In this case we cannot block, so that we have to fail.
- */
- if (sk->sk_wmem_queued + size >= sk->sk_sndbuf)
- return 1;
- }
-
- /* Alas. Undo changes. */
- sk->sk_forward_alloc -= amt * SK_STREAM_MEM_QUANTUM;
- atomic_sub(amt, prot->memory_allocated);
- return 0;
-}
-
-EXPORT_SYMBOL(sk_stream_mem_schedule);
-
void sk_stream_kill_queues(struct sock *sk)
{
/* First the read buffer. */
BUG_TRAP(skb_queue_empty(&sk->sk_write_queue));
/* Account for returned memory. */
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
BUG_TRAP(!sk->sk_wmem_queued);
BUG_TRAP(!sk->sk_forward_alloc);
/*
* Pressure flag: try to collapse.
* Technical note: it is used by multiple contexts non atomically.
- * All the sk_stream_mem_schedule() is of this nature: accounting
+ * All the __sk_mem_schedule() is of this nature: accounting
* is strict, actions are advisory and have some latency.
*/
int tcp_memory_pressure __read_mostly;
tcb->sacked = 0;
skb_header_release(skb);
tcp_add_write_queue_tail(sk, skb);
- sk_charge_skb(sk, skb);
+ sk->sk_wmem_queued += skb->truesize;
+ sk_mem_charge(sk, skb->truesize);
if (tp->nonagle & TCP_NAGLE_PUSH)
tp->nonagle &= ~TCP_NAGLE_PUSH;
}
skb = alloc_skb_fclone(size + sk->sk_prot->max_header, gfp);
if (skb) {
- if (sk_stream_wmem_schedule(sk, skb->truesize)) {
+ if (sk_wmem_schedule(sk, skb->truesize)) {
/*
* Make sure that we have exactly size bytes
* available to the caller, no more, no less.
tcp_mark_push(tp, skb);
goto new_segment;
}
- if (!sk_stream_wmem_schedule(sk, copy))
+ if (!sk_wmem_schedule(sk, copy))
goto wait_for_memory;
if (can_coalesce) {
skb->data_len += copy;
skb->truesize += copy;
sk->sk_wmem_queued += copy;
- sk->sk_forward_alloc -= copy;
+ sk_mem_charge(sk, copy);
skb->ip_summed = CHECKSUM_PARTIAL;
tp->write_seq += copy;
TCP_SKB_CB(skb)->end_seq += copy;
if (copy > PAGE_SIZE - off)
copy = PAGE_SIZE - off;
- if (!sk_stream_wmem_schedule(sk, copy))
+ if (!sk_wmem_schedule(sk, copy))
goto wait_for_memory;
if (!page) {
* reset, where we can be unlinking the send_head.
*/
tcp_check_send_head(sk, skb);
- sk_stream_free_skb(sk, skb);
+ sk_wmem_free_skb(sk, skb);
}
do_error:
__kfree_skb(skb);
}
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
/* As outlined in RFC 2525, section 2.17, we send a RST here because
* data was lost. To witness the awful effects of the old behavior of
}
}
if (sk->sk_state != TCP_CLOSE) {
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
if (tcp_too_many_orphans(sk,
atomic_read(sk->sk_prot->orphan_count))) {
if (net_ratelimit())
limit = ((unsigned long)sysctl_tcp_mem[1]) << (PAGE_SHIFT - 7);
max_share = min(4UL*1024*1024, limit);
- sysctl_tcp_wmem[0] = SK_STREAM_MEM_QUANTUM;
+ sysctl_tcp_wmem[0] = SK_MEM_QUANTUM;
sysctl_tcp_wmem[1] = 16*1024;
sysctl_tcp_wmem[2] = max(64*1024, max_share);
- sysctl_tcp_rmem[0] = SK_STREAM_MEM_QUANTUM;
+ sysctl_tcp_rmem[0] = SK_MEM_QUANTUM;
sysctl_tcp_rmem[1] = 87380;
sysctl_tcp_rmem[2] = max(87380, max_share);
* restart window, so that we send ACKs quickly.
*/
tcp_incr_quickack(sk);
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
}
}
icsk->icsk_ack.lrcvtime = now;
break;
tcp_unlink_write_queue(skb, sk);
- sk_stream_free_skb(sk, skb);
+ sk_wmem_free_skb(sk, skb);
tcp_clear_all_retrans_hints(tp);
}
__skb_queue_purge(&tp->out_of_order_queue);
if (tcp_is_sack(tp))
tcp_sack_reset(&tp->rx_opt);
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
if (!sock_flag(sk, SOCK_DEAD)) {
sk->sk_state_change(sk);
queue_and_out:
if (eaten < 0 &&
(atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf ||
- !sk_stream_rmem_schedule(sk, skb))) {
+ !sk_rmem_schedule(sk, skb->truesize))) {
if (tcp_prune_queue(sk) < 0 ||
- !sk_stream_rmem_schedule(sk, skb))
+ !sk_rmem_schedule(sk, skb->truesize))
goto drop;
}
- sk_stream_set_owner_r(skb, sk);
+ skb_set_owner_r(skb, sk);
__skb_queue_tail(&sk->sk_receive_queue, skb);
}
tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
TCP_ECN_check_ce(tp, skb);
if (atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf ||
- !sk_stream_rmem_schedule(sk, skb)) {
+ !sk_rmem_schedule(sk, skb->truesize)) {
if (tcp_prune_queue(sk) < 0 ||
- !sk_stream_rmem_schedule(sk, skb))
+ !sk_rmem_schedule(sk, skb->truesize))
goto drop;
}
SOCK_DEBUG(sk, "out of order segment: rcv_next %X seq %X - %X\n",
tp->rcv_nxt, TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq);
- sk_stream_set_owner_r(skb, sk);
+ skb_set_owner_r(skb, sk);
if (!skb_peek(&tp->out_of_order_queue)) {
/* Initial out of order segment, build 1 SACK. */
memcpy(nskb->cb, skb->cb, sizeof(skb->cb));
TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(nskb)->end_seq = start;
__skb_insert(nskb, skb->prev, skb, list);
- sk_stream_set_owner_r(nskb, sk);
+ skb_set_owner_r(nskb, sk);
/* Copy data, releasing collapsed skbs. */
while (copy > 0) {
sk->sk_receive_queue.next,
(struct sk_buff*)&sk->sk_receive_queue,
tp->copied_seq, tp->rcv_nxt);
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf)
return 0;
*/
if (tcp_is_sack(tp))
tcp_sack_reset(&tp->rx_opt);
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
}
if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf)
/* Bulk data transfer: receiver */
__skb_pull(skb,tcp_header_len);
__skb_queue_tail(&sk->sk_receive_queue, skb);
- sk_stream_set_owner_r(skb, sk);
+ skb_set_owner_r(skb, sk);
tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
}
tp->write_seq = TCP_SKB_CB(skb)->end_seq;
skb_header_release(skb);
tcp_add_write_queue_tail(sk, skb);
- sk_charge_skb(sk, skb);
+ sk->sk_wmem_queued += skb->truesize;
+ sk_mem_charge(sk, skb->truesize);
}
static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned int mss_now)
if (buff == NULL)
return -ENOMEM; /* We'll just try again later. */
- sk_charge_skb(sk, buff);
+ sk->sk_wmem_queued += buff->truesize;
+ sk_mem_charge(sk, buff->truesize);
nlen = skb->len - len - nsize;
buff->truesize += nlen;
skb->truesize -= nlen;
skb->truesize -= len;
sk->sk_wmem_queued -= len;
- sk->sk_forward_alloc += len;
+ sk_mem_uncharge(sk, len);
sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
/* Any change of skb->len requires recalculation of tso
if (unlikely(buff == NULL))
return -ENOMEM;
- sk_charge_skb(sk, buff);
+ sk->sk_wmem_queued += buff->truesize;
+ sk_mem_charge(sk, buff->truesize);
buff->truesize += nlen;
skb->truesize -= nlen;
/* We're allowed to probe. Build it now. */
if ((nskb = sk_stream_alloc_skb(sk, probe_size, GFP_ATOMIC)) == NULL)
return -1;
- sk_charge_skb(sk, nskb);
+ sk->sk_wmem_queued += nskb->truesize;
+ sk_mem_charge(sk, nskb->truesize);
skb = tcp_send_head(sk);
* Throw it away. */
TCP_SKB_CB(nskb)->flags |= TCP_SKB_CB(skb)->flags;
tcp_unlink_write_queue(skb, sk);
- sk_stream_free_skb(sk, skb);
+ sk_wmem_free_skb(sk, skb);
} else {
TCP_SKB_CB(nskb)->flags |= TCP_SKB_CB(skb)->flags &
~(TCPCB_FLAG_FIN|TCPCB_FLAG_PSH);
/* changed transmit queue under us so clear hints */
tcp_clear_retrans_hints_partial(tp);
- sk_stream_free_skb(sk, next_skb);
+ sk_wmem_free_skb(sk, next_skb);
}
}
tcp_unlink_write_queue(skb, sk);
skb_header_release(nskb);
__tcp_add_write_queue_head(sk, nskb);
- sk_stream_free_skb(sk, skb);
- sk_charge_skb(sk, nskb);
+ sk_wmem_free_skb(sk, skb);
+ sk->sk_wmem_queued += nskb->truesize;
+ sk_mem_charge(sk, nskb->truesize);
skb = nskb;
}
tp->retrans_stamp = TCP_SKB_CB(buff)->when;
skb_header_release(buff);
__tcp_add_write_queue_tail(sk, buff);
- sk_charge_skb(sk, buff);
+ sk->sk_wmem_queued += buff->truesize;
+ sk_mem_charge(sk, buff->truesize);
tp->packets_out += tcp_skb_pcount(buff);
tcp_transmit_skb(sk, buff, 1, GFP_KERNEL);
goto out_unlock;
}
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
if (sk->sk_state == TCP_CLOSE || !(icsk->icsk_ack.pending & ICSK_ACK_TIMER))
goto out;
out:
if (tcp_memory_pressure)
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
out_unlock:
bh_unlock_sock(sk);
sock_put(sk);
TCP_CHECK_TIMER(sk);
out:
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
out_unlock:
bh_unlock_sock(sk);
sock_put(sk);
}
TCP_CHECK_TIMER(sk);
- sk_stream_mem_reclaim(sk);
+ sk_mem_reclaim(sk);
resched:
inet_csk_reset_keepalive_timer (sk, elapsed);
sysctl_sctp_rmem[1] = (1500 *(sizeof(struct sk_buff) + 1));
sysctl_sctp_rmem[2] = max(sysctl_sctp_rmem[1], max_share);
- sysctl_sctp_wmem[0] = SK_STREAM_MEM_QUANTUM;
+ sysctl_sctp_wmem[0] = SK_MEM_QUANTUM;
sysctl_sctp_wmem[1] = 16*1024;
sysctl_sctp_wmem[2] = max(64*1024, max_share);
/*
* Also try to renege to limit our memory usage in the event that
* we are under memory pressure
- * If we can't renege, don't worry about it, the sk_stream_rmem_schedule
+ * If we can't renege, don't worry about it, the sk_rmem_schedule
* in sctp_ulpevent_make_rcvmsg will drop the frame if we grow our
* memory usage too much
*/
sizeof(struct sctp_chunk);
atomic_add(sizeof(struct sctp_chunk), &sk->sk_wmem_alloc);
- sk_charge_skb(sk, chunk->skb);
+ sk->sk_wmem_queued += chunk->skb->truesize;
+ sk_mem_charge(sk, chunk->skb->truesize);
}
/* Verify that this is a valid address. */
atomic_sub(sizeof(struct sctp_chunk), &sk->sk_wmem_alloc);
/*
- * This undoes what is done via sk_charge_skb
+ * This undoes what is done via sctp_set_owner_w and sk_mem_charge
*/
sk->sk_wmem_queued -= skb->truesize;
- sk->sk_forward_alloc += skb->truesize;
+ sk_mem_uncharge(sk, skb->truesize);
sock_wfree(skb);
__sctp_write_space(asoc);
atomic_sub(event->rmem_len, &sk->sk_rmem_alloc);
/*
- * Mimic the behavior of sk_stream_rfree
+ * Mimic the behavior of sock_rfree
*/
- sk->sk_forward_alloc += event->rmem_len;
+ sk_mem_uncharge(sk, event->rmem_len);
}
if (rx_count >= asoc->base.sk->sk_rcvbuf) {
if ((asoc->base.sk->sk_userlocks & SOCK_RCVBUF_LOCK) ||
- (!sk_stream_rmem_schedule(asoc->base.sk, chunk->skb)))
+ (!sk_rmem_schedule(asoc->base.sk, chunk->skb->truesize)))
goto fail;
}
sctp_ulpq_partial_delivery(ulpq, chunk, gfp);
}
- sk_stream_mem_reclaim(asoc->base.sk);
+ sk_mem_reclaim(asoc->base.sk);
return;
}
projects / users / willy / pagecache.git / commitdiff