[PATCH 09/21] mm: exit_mmap need not reset

[Hugh Dickins]

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@xxxxxxxxxxx>
---

 mm/mmap.c |    6 ------
 1 files changed, 6 deletions(-)

--- mm08/mm/mmap.c	2005-09-24 19:28:01.000000000 +0100
+++ mm09/mm/mmap.c	2005-09-24 19:28:15.000000000 +0100
@@ -1944,12 +1944,6 @@ void exit_mmap(struct mm_struct *mm)
 	free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0);
 	tlb_finish_mmu(tlb, 0, end);
 
-	mm->mmap = mm->mmap_cache = NULL;
-	mm->mm_rb = RB_ROOT;
-	set_mm_counter(mm, rss, 0);
-	mm->total_vm = 0;
-	mm->locked_vm = 0;
-
 	spin_unlock(&mm->page_table_lock);
 
 	/*
-
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