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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2017-02-23 02:46:34 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-23 03:41:30 +0300
commit3e8715fdc03e8df4d26d8e436166e44e3e416d3b (patch)
tree0d5ea4df7eb5d43b81ee3443238d22fd4a179612
parentda162e9368990ed747075e2ab427da0759fc4a59 (diff)
downloadlinux-3e8715fdc03e8df4d26d8e436166e44e3e416d3b.tar.xz
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>
-rw-r--r--include/linux/mm.h1
-rw-r--r--mm/memory.c4
-rw-r--r--mm/oom_kill.c3
3 files changed, 3 insertions, 5 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index eae478a42f26..062936e8b832 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -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,
diff --git a/mm/memory.c b/mm/memory.c
index 88872a93c3ca..e9035a0afee2 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -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);
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 33fcc8a40aeb..a1977247c7ea 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -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",