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This commit is contained in:
Gaurav Juvekar
2024-08-19 10:46:21 -07:00
parent 315fd96d2d
commit ed4be64962
25 changed files with 156 additions and 51 deletions
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9
kernel-open/nvidia-uvm/uvm_populate_pageable.c
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@@ -137,6 +137,15 @@ NV_STATUS uvm_populate_pageable_vma(struct vm_area_struct *vma,
if (status != NV_OK)
goto out;
// Kernel v6.6 introduced a bug in set_pte_range() around the handling of AF
// bit. Instead of setting the AF bit, the bit is incorrectly being cleared
// in set_pte_range() during first-touch fault handling. Calling
// handle_mm_fault() again takes a different code path which correctly sets
// the AF bit.
status = handle_fault(vma, start, vma_num_pages, !!(gup_flags & FOLL_WRITE));
if (status != NV_OK)
goto out;
if (touch)
ret = NV_PIN_USER_PAGES_REMOTE(mm, start, vma_num_pages, gup_flags, pages, NULL);
else