diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2012-09-26 16:21:08 +0200 |
|---|---|---|
| committer | Gary Robertson <gary.robertson@linaro.org> | 2014-03-06 13:07:22 +0800 |
| commit | 7a9e6ab83b9a306562e547d4f429412f8cad8367 (patch) | |
| tree | 1e093cbf75fed1da264584e1ed005a0afbaa1c57 /net | |
| parent | 2e706428ce65245032c94c29fe6814d8bf7e1a7e (diff) | |
net: Another local_irq_disable/kmalloc headache
Replace it by a local lock. Though that's pretty inefficient :(
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/skbuff.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 20ee14d0a8a9..32bbae3bfa27 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -60,6 +60,7 @@ #include <linux/scatterlist.h> #include <linux/errqueue.h> #include <linux/prefetch.h> +#include <linux/locallock.h> #include <net/protocol.h> #include <net/dst.h> @@ -337,6 +338,7 @@ struct netdev_alloc_cache { unsigned int pagecnt_bias; }; static DEFINE_PER_CPU(struct netdev_alloc_cache, netdev_alloc_cache); +static DEFINE_LOCAL_IRQ_LOCK(netdev_alloc_lock); static void *__netdev_alloc_frag(unsigned int fragsz, gfp_t gfp_mask) { @@ -345,7 +347,7 @@ static void *__netdev_alloc_frag(unsigned int fragsz, gfp_t gfp_mask) int order; unsigned long flags; - local_irq_save(flags); + local_lock_irqsave(netdev_alloc_lock, flags); nc = &__get_cpu_var(netdev_alloc_cache); if (unlikely(!nc->frag.page)) { refill: @@ -379,7 +381,7 @@ recycle: nc->frag.offset += fragsz; nc->pagecnt_bias--; end: - local_irq_restore(flags); + local_unlock_irqrestore(netdev_alloc_lock, flags); return data; } |