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mm/mmap.c: remove some redundancy in arch_get_unmapped_area_topdown()

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The variable 'addr' is redundant in arch_get_unmapped_area_topdown(),
just use parameter 'addr0' directly.  Then remove the const qualifier of
the parameter, and change its name to 'addr'.

And in according with other functions, remove the const qualifier of all
other no-pointer parameters in function arch_get_unmapped_area_topdown().

Link: http://lkml.kernel.org/r/20190127041112.25599-1-nullptr.cpp@gmail.com
Signed-off-by: Yang Fan <nullptr.cpp@gmail.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yang Fan 2019-03-05 15:46:16 -08:00 committed by Linus Torvalds
parent bbbe480297
commit 43cca0b1c5
1 changed files with 3 additions and 4 deletions
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7
mm/mmap.c
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@ -2126,13 +2126,12 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
*/
#ifndef HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
unsigned long
arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
const unsigned long len, const unsigned long pgoff,
const unsigned long flags)
arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
struct vm_area_struct *vma, *prev;
struct mm_struct *mm = current->mm;
unsigned long addr = addr0;
struct vm_unmapped_area_info info;
const unsigned long mmap_end = arch_get_mmap_end(addr);