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mm, thp: do not access mm->pmd_huge_pte directly
Currently mm->pmd_huge_pte protected by page table lock. It will not work with split lock. We have to have per-pmd pmd_huge_pte for proper access serialization. For now, let's just introduce wrapper to access mm->pmd_huge_pte. Signed-off-by: Kirill A. Shutemov <[email protected]> Tested-by: Alex Thorlton <[email protected]> Cc: Alex Thorlton <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Naoya Horiguchi <[email protected]> Cc: "Eric W . Biederman" <[email protected]> Cc: "Paul E . McKenney" <[email protected]> Cc: Al Viro <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Andrea Arcangeli <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Dave Jones <[email protected]> Cc: David Howells <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: Kees Cook <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Michael Kerrisk <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Robin Holt <[email protected]> Cc: Sedat Dilek <[email protected]> Cc: Srikar Dronamraju <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Hugh Dickins <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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