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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2016-06-25 10:10:13 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2016-06-25 13:26:56 +1000 |
| commit | f454c3811e6d4a52f5b55580004c16b6f3d9eb3d (patch) | |
| tree | 3a57ccd1a3e8b3793e8bc568f510879881c3b0eb /mm/huge_memory.c | |
| parent | c400b7360e6b3a8c1d1c7cc9ae1826c1c9b77a83 (diff) | |
| download | linux-next-f454c3811e6d4a52f5b55580004c16b6f3d9eb3d.tar.gz | |
khugepaged: __collapse_huge_page_swapin(): drop unused 'pte' parameter
'pte' dereference is eliminated by compiler, since nobody uses the
pteval until it's overwritten inside the loop.
Value of 'pte' itself is overwritten by pte_offset_map() before first
real use.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 228c84da39ec..3890c9f1707a 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2388,11 +2388,10 @@ static bool hugepage_vma_check(struct vm_area_struct *vma) static void __collapse_huge_page_swapin(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, pmd_t *pmd, - pte_t *pte) + unsigned long address, pmd_t *pmd) { unsigned long _address; - pte_t pteval = *pte; + pte_t *pte, pteval; int swapped_in = 0, ret = 0; pte = pte_offset_map(pmd, address); @@ -2486,7 +2485,7 @@ static void collapse_huge_page(struct mm_struct *mm, anon_vma_lock_write(vma->anon_vma); - __collapse_huge_page_swapin(mm, vma, address, pmd, pte); + __collapse_huge_page_swapin(mm, vma, address, pmd); pte = pte_offset_map(pmd, address); pte_ptl = pte_lockptr(mm, pmd); |