From: Nishanth A. <na...@us...> - 2005-08-15 18:10:23
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Description: Use schedule_timeout_{,un}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Also use human-time conversion functions instead of hard-coded division to avoid rounding issues. Signed-off-by: Nishanth Aravamudan <na...@us...> --- net/core/pktgen.c | 13 +++++-------- net/dccp/proto.c | 2 +- net/ipv4/ipconfig.c | 5 ++--- net/irda/ircomm/ircomm_tty.c | 9 +++------ net/sunrpc/svcsock.c | 3 +-- 5 files changed, 12 insertions(+), 20 deletions(-) --- 2.6.13-rc5-mm1/net/core/pktgen.c 2005-08-07 10:05:22.000000000 -0700 +++ 2.6.13-rc5-mm1-dev/net/core/pktgen.c 2005-08-14 13:32:59.000000000 -0700 @@ -1452,8 +1452,7 @@ static int proc_thread_write(struct file thread_lock(); t->control |= T_REMDEV; thread_unlock(); - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(HZ/8); /* Propagate thread->control */ + schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ ret = count; sprintf(pg_result, "OK: rem_device_all"); goto out; @@ -1716,10 +1715,9 @@ static void spin(struct pktgen_dev *pkt_ printk(KERN_INFO "sleeping for %d\n", (int)(spin_until_us - now)); while (now < spin_until_us) { /* TODO: optimise sleeping behavior */ - if (spin_until_us - now > (1000000/HZ)+1) { - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(1); - } else if (spin_until_us - now > 100) { + if (spin_until_us - now > jiffies_to_usecs(1)+1) + schedule_timeout_interruptible(1); + else if (spin_until_us - now > 100) { do_softirq(); if (!pkt_dev->running) return; @@ -2449,8 +2447,7 @@ static void pktgen_run_all_threads(void) } thread_unlock(); - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(HZ/8); /* Propagate thread->control */ + schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ pktgen_wait_all_threads_run(); } diff -urpN 2.6.13-rc5-mm1/net/dccp/proto.c 2.6.13-rc5-mm1-dev/net/dccp/proto.c --- 2.6.13-rc5-mm1/net/dccp/proto.c 2005-08-07 10:05:22.000000000 -0700 +++ 2.6.13-rc5-mm1-dev/net/dccp/proto.c 2005-08-10 16:10:55.000000000 -0700 @@ -225,7 +225,7 @@ int dccp_sendmsg(struct kiocb *iocb, str if (delay > timeo) goto out_discard; release_sock(sk); - delay = schedule_timeout(delay); + delay = schedule_timeout_interruptible(delay); lock_sock(sk); timeo -= delay; if (signal_pending(current)) diff -urpN 2.6.13-rc5-mm1/net/ipv4/ipconfig.c 2.6.13-rc5-mm1-dev/net/ipv4/ipconfig.c --- 2.6.13-rc5-mm1/net/ipv4/ipconfig.c 2005-08-07 10:05:22.000000000 -0700 +++ 2.6.13-rc5-mm1-dev/net/ipv4/ipconfig.c 2005-08-10 15:26:57.000000000 -0700 @@ -1102,10 +1102,9 @@ static int __init ic_dynamic(void) #endif jiff = jiffies + (d->next ? CONF_INTER_TIMEOUT : timeout); - while (time_before(jiffies, jiff) && !ic_got_reply) { + while (time_before(jiffies, jiff) && !ic_got_reply) set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(1); - } + schedule_timeout_uninterruptible(1); #ifdef IPCONFIG_DHCP /* DHCP isn't done until we get a DHCPACK. */ if ((ic_got_reply & IC_BOOTP) diff -urpN 2.6.13-rc5-mm1/net/irda/ircomm/ircomm_tty.c 2.6.13-rc5-mm1-dev/net/irda/ircomm/ircomm_tty.c --- 2.6.13-rc5-mm1/net/irda/ircomm/ircomm_tty.c 2005-08-07 09:57:38.000000000 -0700 +++ 2.6.13-rc5-mm1-dev/net/irda/ircomm/ircomm_tty.c 2005-08-10 15:27:13.000000000 -0700 @@ -567,10 +567,8 @@ static void ircomm_tty_close(struct tty_ self->tty = NULL; if (self->blocked_open) { - if (self->close_delay) { - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(self->close_delay); - } + if (self->close_delay) + schedule_timeout_interruptible(self->close_delay); wake_up_interruptible(&self->open_wait); } @@ -863,8 +861,7 @@ static void ircomm_tty_wait_until_sent(s spin_lock_irqsave(&self->spinlock, flags); while (self->tx_skb && self->tx_skb->len) { spin_unlock_irqrestore(&self->spinlock, flags); - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(poll_time); + schedule_timeout_interruptible(poll_time); spin_lock_irqsave(&self->spinlock, flags); if (signal_pending(current)) break; diff -urpN 2.6.13-rc5-mm1/net/sunrpc/svcsock.c 2.6.13-rc5-mm1-dev/net/sunrpc/svcsock.c --- 2.6.13-rc5-mm1/net/sunrpc/svcsock.c 2005-08-07 10:05:22.000000000 -0700 +++ 2.6.13-rc5-mm1-dev/net/sunrpc/svcsock.c 2005-08-12 13:51:40.000000000 -0700 @@ -1167,8 +1167,7 @@ svc_recv(struct svc_serv *serv, struct s while (rqstp->rq_arghi < pages) { struct page *p = alloc_page(GFP_KERNEL); if (!p) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/2); + schedule_timeout_uninterruptible(msecs_to_jiffies(500); continue; } rqstp->rq_argpages[rqstp->rq_arghi++] = p; |