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mm: drop zap_details::check_swap_entries 

detail == NULL would give the same functionality as
.check_swap_entries==true.

Link: http://lkml.kernel.org/r/20170118122429.43661-2-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2017-02-22 15:46:34 -08:00 committed by Linus Torvalds
parent da162e9368
commit 3e8715fdc0
3 changed files with 3 additions and 5 deletions
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1
include/linux/mm.h
View File

@ -1175,7 +1175,6 @@ struct zap_details {
struct address_space *check_mapping; /* Check page->mapping if set */
pgoff_t first_index; /* Lowest page->index to unmap */
pgoff_t last_index; /* Highest page->index to unmap */
bool check_swap_entries; /* Check also swap entries */
};
struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr,

4
mm/memory.c
View File

@ -1173,8 +1173,8 @@ again:
}
continue;
}
/* only check swap_entries if explicitly asked for in details */
if (unlikely(details && !details->check_swap_entries))
/* If details->check_mapping, we leave swap entries. */
if (unlikely(details))
continue;
entry = pte_to_swp_entry(ptent);

3
mm/oom_kill.c
View File

@ -465,7 +465,6 @@ static bool __oom_reap_task_mm(struct task_struct *tsk, struct mm_struct *mm)
{
struct mmu_gather tlb;
struct vm_area_struct *vma;
struct zap_details details = {.check_swap_entries = true};
bool ret = true;
/*
@ -531,7 +530,7 @@ static bool __oom_reap_task_mm(struct task_struct *tsk, struct mm_struct *mm)
*/
if (vma_is_anonymous(vma) || !(vma->vm_flags & VM_SHARED))
unmap_page_range(&tlb, vma, vma->vm_start, vma->vm_end,
&details);
NULL);
}
tlb_finish_mmu(&tlb, 0, -1);
pr_info("oom_reaper: reaped process %d (%s), now anon-rss:%lukB, file-rss:%lukB, shmem-rss:%lukB\n",