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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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20 lines
360 B
C
20 lines
360 B
C
#include <linux/highmem.h>
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static inline void *kmap_skb_frag(const skb_frag_t *frag)
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{
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#ifdef CONFIG_HIGHMEM
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BUG_ON(in_irq());
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local_bh_disable();
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#endif
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return kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ);
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}
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static inline void kunmap_skb_frag(void *vaddr)
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{
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kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
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#ifdef CONFIG_HIGHMEM
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local_bh_enable();
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#endif
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}
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