[PATCH] mm: exit_mmap need not reset
exit_mmap resets various mm_struct fields, but the mm is well on its way out, and none of those fields matter by this point. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1948,12 +1948,6 @@ void exit_mmap(struct mm_struct *mm)
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free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0);
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tlb_finish_mmu(tlb, 0, end);
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mm->mmap = mm->mmap_cache = NULL;
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mm->mm_rb = RB_ROOT;
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set_mm_counter(mm, rss, 0);
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mm->total_vm = 0;
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mm->locked_vm = 0;
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spin_unlock(&mm->page_table_lock);
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/*
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