The patch titled
smaps: flush tlb only once for each vma
has been removed from the -mm tree. Its filename was
smaps-add-clear_refs-file-to-clear-reference-fix-fix.patch
This patch was dropped because it was folded into smaps-add-clear_refs-file-to-clear-reference.patch
------------------------------------------------------
Subject: smaps: flush tlb only once for each vma
From: David Rientjes <rientjes@xxxxxxxxxx>
Flush the entire user address space from the TLB for each VMA in the
task_struct list when clearing reference bits with /proc/pid/clear_refs.
It's more efficient than flushing each page individually depending on
pte_young().
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/proc/task_mmu.c~smaps-add-clear_refs-file-to-clear-reference-fix-fix fs/proc/task_mmu.c
--- a/fs/proc/task_mmu.c~smaps-add-clear_refs-file-to-clear-reference-fix-fix
+++ a/fs/proc/task_mmu.c
@@ -276,7 +276,6 @@ static void clear_refs_one_pmd(struct vm
if (pte_young(ptent)) {
ptent = pte_mkold(ptent);
set_pte_at(vma->vm_mm, addr, pte, ptent);
- flush_tlb_page(vma, addr);
}
ClearPageReferenced(page);
}
@@ -358,6 +357,7 @@ void clear_refs_smap(struct mm_struct *m
for (vma = mm->mmap; vma; vma = vma->vm_next)
if (vma->vm_mm && !is_vm_hugetlb_page(vma))
for_each_pmd(vma, clear_refs_one_pmd, NULL);
+ flush_tlb_mm(mm);
up_read(&mm->mmap_sem);
}
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
slab-x86_64-skip-cache_free_alien-on-non-numa.patch
i386-add-ptep_test_and_clear_dirtyyoung.patch
i386-use-pte_update_defer-in-ptep_test_and_clear_dirtyyoung.patch
smaps-extract-pmd-walker-from-smaps-code.patch
smaps-add-pages-referenced-count-to-smaps.patch
smaps-add-clear_refs-file-to-clear-reference.patch
smaps-add-clear_refs-file-to-clear-reference-fix-fix.patch
smaps-add-clear_refs-file-to-clear-reference-fix-fix-2.patch
smaps-add-clear_refs-file-to-clear-reference-cleanup.patch
smaps-use-ptep_test_and_clear_young.patch
smaps-add-clear_refs-file-to-clear-reference-docs.patch
maps2-uninline-some-functions-in-the-page-walker.patch
maps2-eliminate-the-pmd_walker-struct-in-the-page-walker.patch
maps2-remove-vma-from-args-in-the-page-walker.patch
maps2-propagate-errors-from-callback-in-page-walker.patch
maps2-add-callbacks-for-each-level-to-page-walker.patch
maps2-move-the-page-walker-code-to-lib.patch
maps2-move-the-page-walker-code-to-lib-fix.patch
maps2-simplify-interdependence-of-proc-pid-maps-and-smaps.patch
maps2-move-clear_refs-code-to-task_mmuc.patch
maps2-regroup-task_mmu-by-interface.patch
maps2-make-proc-pid-smaps-optional-under-config_embedded.patch
maps2-make-proc-pid-clear_refs-option-under-config_embedded.patch
maps2-add-proc-pid-pagemap-interface.patch
maps2-add-proc-kpagemap-interface.patch
cpusets-allow-tif_memdie-threads-to-allocate-anywhere.patch
mm-fix-handling-of-panic_on_oom-when-cpusets-are-in-use.patch
oom-fix-constraint-deadlock.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
