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author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2018-12-12 14:08:45 +0100 |
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committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2018-12-12 14:08:45 +0100 |
commit | cfbbc7703fff59c67761c93a8b1de29a79f9841c (patch) | |
tree | 58b4b37bed385b27fc5956435b2451c760f26f5f /tools/virtio/ringtest/ptr_ring.c | |
parent | 5f3fecbc0715a70437501e1d85e74726c4f561be (diff) | |
parent | 1aa861ff238ecd17a3095b0dbd2d20bdf7bfaf14 (diff) |
Merge tag 'v4.9.144' into 4.9-2.3.x-imx
This is the 4.9.144 stable release
Diffstat (limited to 'tools/virtio/ringtest/ptr_ring.c')
-rw-r--r-- | tools/virtio/ringtest/ptr_ring.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/tools/virtio/ringtest/ptr_ring.c b/tools/virtio/ringtest/ptr_ring.c index 635b07b4fdd3..b4a2e6af515f 100644 --- a/tools/virtio/ringtest/ptr_ring.c +++ b/tools/virtio/ringtest/ptr_ring.c @@ -15,24 +15,41 @@ #define unlikely(x) (__builtin_expect(!!(x), 0)) #define likely(x) (__builtin_expect(!!(x), 1)) #define ALIGN(x, a) (((x) + (a) - 1) / (a) * (a)) +#define SIZE_MAX (~(size_t)0) + typedef pthread_spinlock_t spinlock_t; typedef int gfp_t; -static void *kmalloc(unsigned size, gfp_t gfp) -{ - return memalign(64, size); -} +#define __GFP_ZERO 0x1 -static void *kzalloc(unsigned size, gfp_t gfp) +static void *kmalloc(unsigned size, gfp_t gfp) { void *p = memalign(64, size); if (!p) return p; - memset(p, 0, size); + if (gfp & __GFP_ZERO) + memset(p, 0, size); return p; } +static inline void *kzalloc(unsigned size, gfp_t flags) +{ + return kmalloc(size, flags | __GFP_ZERO); +} + +static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags) +{ + if (size != 0 && n > SIZE_MAX / size) + return NULL; + return kmalloc(n * size, flags); +} + +static inline void *kcalloc(size_t n, size_t size, gfp_t flags) +{ + return kmalloc_array(n, size, flags | __GFP_ZERO); +} + static void kfree(void *p) { if (p) |