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Viewing changes to driver/rdma.c

  • Committer: Suren A. Chilingaryan
  • Date: 2018-02-11 04:18:31 UTC
  • Revision ID: csa@suren.me-20180211041831-r43p7okxzys402jq
Support kernel 4.12 by Timo

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driver/rdma.c
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#include <linux/pagemap.h>
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#include <linux/hugetlb.h>
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#include <linux/cdev.h>
 
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#include <linux/version.h>
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#include "base.h"
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    pmd_t *pmd;
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    pte_t *pte;
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    spinlock_t *ptl;
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    unsigned long pfn = 0;
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    if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
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        return 0;
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        // pud_offset compatibility with pgd_t* broken from Kernel Version 4.12 onwards. See: https://github.com/torvalds/linux/commit/048456dcf2c56ad6f6248e2899dda92fb6a613f6
 
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0)
 
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    p4d_t *p4d;
 
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    p4d = p4d_offset(pgd, address);
 
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    pud = pud_offset(p4d, address);
 
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#elif
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    pud = pud_offset(pgd, address);
 
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#endif
 
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    if (pud_none(*pud) || unlikely(pud_bad(*pud)))
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        return 0;
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