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| author | Wanpeng Li <liwanp@linux.vnet.ibm.com> | 2013-07-08 16:00:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-09 10:33:23 -0700 |
| commit | 73b44ff43c4b3cf517826da03c51948593f88753 (patch) | |
| tree | fc505d9d3ac4ed335548a4db8635e70cfa5460b7 /arch | |
| parent | f49cbdde495f62e1c2d906b16e833cec27de5e59 (diff) | |
| download | linux-73b44ff43c4b3cf517826da03c51948593f88753.tar.gz linux-73b44ff43c4b3cf517826da03c51948593f88753.tar.xz | |
mm/pgtable: don't accumulate addr during pgd prepopulate pmd
The old codes accumulate addr to get right pmd, however, currently pmds
are preallocated and transfered as a parameter, there is unnecessary to
accumulate addr variable any more, this patch remove it.
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/mm/pgtable.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 17fda6a8b3c2..dfa537a03be1 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -240,7 +240,6 @@ static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[]) { pud_t *pud; - unsigned long addr; int i; if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */ @@ -248,8 +247,7 @@ static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[]) pud = pud_offset(pgd, 0); - for (addr = i = 0; i < PREALLOCATED_PMDS; - i++, pud++, addr += PUD_SIZE) { + for (i = 0; i < PREALLOCATED_PMDS; i++, pud++) { pmd_t *pmd = pmds[i]; if (i >= KERNEL_PGD_BOUNDARY) |