[PATCH RFC v2 0/1] hugetlbfs: Use i_mmap_rwsem for pmd share and fault/trunc

This patch addresses issues with page fault/truncation synchronization. The first issue was noticed as a negative hugetlb reserved page counts during DB development testing. Code inspection revealed that the most likely cause were races with truncate and page faults. In fact, I could write a not

[PATCH RFC v2 0/1] hugetlbfs: Use i_mmap_rwsem for pmd share and fault/trunc

This patch addresses issues with page fault/truncation synchronization. The first issue was noticed as a negative hugetlb reserved page counts during DB development testing. Code inspection revealed that the most likely cause were races with truncate and page faults. In fact, I could write a not