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| author | Christoph Hellwig | 2014-01-31 00:45:47 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2014-01-31 01:56:54 +0100 |
| commit | 6897fc22ea01b562b55c6168592bcbd3ee62b006 (patch) | |
| tree | 034c4b774880c2bbf8a9347acef749478a3443b0 /include/linux/smp.h | |
| parent | drivers/net/phy/mdio_bus.c: call put_device on device_register() failure (diff) | |
| download | kernel-qcow2-linux-6897fc22ea01b562b55c6168592bcbd3ee62b006.tar.gz kernel-qcow2-linux-6897fc22ea01b562b55c6168592bcbd3ee62b006.tar.xz kernel-qcow2-linux-6897fc22ea01b562b55c6168592bcbd3ee62b006.zip | |
kernel: use lockless list for smp_call_function_single
Make smp_call_function_single and friends more efficient by using a
lockless list.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/smp.h')
| -rw-r--r-- | include/linux/smp.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h index 5da22ee42e16..3834f43f9993 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -11,12 +11,16 @@ #include <linux/list.h> #include <linux/cpumask.h> #include <linux/init.h> +#include <linux/llist.h> extern void cpu_idle(void); typedef void (*smp_call_func_t)(void *info); struct call_single_data { - struct list_head list; + union { + struct list_head list; + struct llist_node llist; + }; smp_call_func_t func; void *info; u16 flags; |