diff options
Diffstat (limited to 'driver/rdma.c')
| -rw-r--r-- | driver/rdma.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/driver/rdma.c b/driver/rdma.c index 4cbd8c4..3670ddf 100644 --- a/driver/rdma.c +++ b/driver/rdma.c @@ -8,6 +8,7 @@ #include <linux/pagemap.h> #include <linux/hugetlb.h> #include <linux/cdev.h> +#include <linux/version.h> #include "base.h" @@ -18,6 +19,7 @@ static unsigned long pcidriver_follow_pte(struct mm_struct *mm, unsigned long ad pmd_t *pmd; pte_t *pte; + spinlock_t *ptl; unsigned long pfn = 0; @@ -26,7 +28,15 @@ static unsigned long pcidriver_follow_pte(struct mm_struct *mm, unsigned long ad if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd))) return 0; + // pud_offset compatibility with pgd_t* broken from Kernel Version 4.12 onwards. See: https://github.com/torvalds/linux/commit/048456dcf2c56ad6f6248e2899dda92fb6a613f6 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) + p4d_t *p4d; + p4d = p4d_offset(pgd, address); + pud = pud_offset(p4d, address); +#elif pud = pud_offset(pgd, address); +#endif + if (pud_none(*pud) || unlikely(pud_bad(*pud))) return 0; |