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56079431b6
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Denis Vlasenko 56079431b6 [NET]: Deinline some larger functions from netdevice.h 
On a allyesconfig'ured kernel:

Size  Uses Wasted Name and definition
===== ==== ====== ================================================
   95  162  12075 netif_wake_queue      include/linux/netdevice.h
  129   86   9265 dev_kfree_skb_any     include/linux/netdevice.h
  127   56   5885 netif_device_attach   include/linux/netdevice.h
   73   86   4505 dev_kfree_skb_irq     include/linux/netdevice.h
   46   60   1534 netif_device_detach   include/linux/netdevice.h
  119   16   1485 __netif_rx_schedule   include/linux/netdevice.h
  143    5    492 netif_rx_schedule     include/linux/netdevice.h
   81    7    366 netif_schedule        include/linux/netdevice.h

netif_wake_queue is big because __netif_schedule is a big inline:

static inline void __netif_schedule(struct net_device *dev)
{
        if (!test_and_set_bit(__LINK_STATE_SCHED, &dev->state)) {
                unsigned long flags;
                struct softnet_data *sd;

                local_irq_save(flags);
                sd = &__get_cpu_var(softnet_data);
                dev->next_sched = sd->output_queue;
                sd->output_queue = dev;
                raise_softirq_irqoff(NET_TX_SOFTIRQ);
                local_irq_restore(flags);
        }
}

static inline void netif_wake_queue(struct net_device *dev)
{
#ifdef CONFIG_NETPOLL_TRAP
        if (netpoll_trap())
                return;
#endif
        if (test_and_clear_bit(__LINK_STATE_XOFF, &dev->state))
                __netif_schedule(dev);
}

By de-inlining __netif_schedule we are saving a lot of text
at each callsite of netif_wake_queue and netif_schedule.
__netif_rx_schedule is also big, and it makes more sense to keep
both of them out of line.

Patch also deinlines dev_kfree_skb_any. We can deinline dev_kfree_skb_irq
instead... oh well.

netif_device_attach/detach are not hot paths, we can deinline them too.

Signed-off-by: Denis Vlasenko <vda@ilport.com.ua>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-29 15:57:29 -08:00
..
acpi [PATCH] s/;;/;/g 2006-03-24 07:33:24 -08:00
asm-alpha [PATCH] alpha: make poll flags the same as other architectures 2006-03-28 09:16:02 -08:00
asm-arm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-03-28 13:53:03 -08:00
asm-arm26 [PATCH] unify pfn_to_page: arm26 pfn_to_page 2006-03-27 08:44:44 -08:00
asm-cris [PATCH] unify pfn_to_page: cris pfn_to_page 2006-03-27 08:44:45 -08:00
asm-frv [PATCH] lightweight robust futexes updates 2006-03-27 08:44:49 -08:00
asm-generic [PATCH] for_each_possible_cpu: fixes for generic part 2006-03-28 09:16:05 -08:00
asm-h8300 [PATCH] unify pfn_to_page: h8300 pfn_to_page 2006-03-27 08:44:45 -08:00
asm-i386 [PATCH] arch/i386/kernel/microcode.c: remove the obsolete microcode_ioctl 2006-03-28 09:16:06 -08:00
asm-ia64 [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
asm-m32r [PATCH] unify PFN_* macros 2006-03-27 08:44:48 -08:00
asm-m68k [PATCH] m68k: fix undefined reference to generic_find_next_zero_le_bit 2006-03-26 08:57:13 -08:00
asm-m68knommu [PATCH] bitops: m68knommu: use generic bitops 2006-03-26 08:57:13 -08:00
asm-mips Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-03-28 13:52:37 -08:00
asm-parisc [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
asm-powerpc [PATCH] powerpc: Remove oprofile spinlock backtrace code 2006-03-29 13:44:16 +11:00
asm-ppc [PATCH] lock PTE before updating it in 440/BookE page fault handler 2006-03-29 13:44:15 +11:00
asm-s390 [PATCH] s390: add ptr_to_compat() 2006-03-27 08:44:48 -08:00
asm-sh [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
asm-sh64 [PATCH] unify PFN_* macros 2006-03-27 08:44:48 -08:00
asm-sparc [PATCH] unify pfn_to_page: sparc pfn_to_page 2006-03-27 08:44:46 -08:00
asm-sparc64 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2006-03-28 09:25:22 -08:00
asm-um [PATCH] unify pfn_to_page: uml pfn_to_page 2006-03-27 08:44:46 -08:00
asm-v850 [PATCH] unify pfn_to_page: v850 pfn_to_page 2006-03-27 08:44:47 -08:00
asm-x86_64 [PATCH] arch/i386/kernel/microcode.c: remove the obsolete microcode_ioctl 2006-03-28 09:16:06 -08:00
asm-xtensa [PATCH] unify pfn_to_page: xtensa pfn_to_page 2006-03-27 08:44:47 -08:00
keys
linux [NET]: Deinline some larger functions from netdevice.h 2006-03-29 15:57:29 -08:00
math-emu
media V4L/DVB (3599): Implement new routing commands for wm8775 and cs53l32a. 2006-03-24 16:27:00 -03:00
mtd
net [INET]: Introduce tunnel4/tunnel6 2006-03-28 17:02:46 -08:00
pcmcia [PATCH] pcmcia: Add macro to match PCMCIA cards by numeric ID and first vendor string 2006-03-01 11:11:26 +01:00
rdma IB/umad: Add support for large RMPP transfers 2006-03-20 10:08:23 -08:00
rxrpc
scsi [PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE. 2006-03-24 09:51:36 -05:00
sound [PATCH] mark f_ops const in the inode 2006-03-28 09:16:05 -08:00
video [PATCH] Remove MODULE_PARM 2006-03-25 08:22:52 -08:00