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mm/mempolicy: convert queue_pages_pmd() to queue_folios_pmd()

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The function now operates on a folio instead of the page associated with a
pmd.

This change is in preparation for the conversion of queue_pages_required()
to queue_folio_required() and migrate_page_add() to migrate_folio_add().

Link: https://lkml.kernel.org/r/20230130201833.27042-3-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: "Yin, Fengwei" <fengwei.yin@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Vishal Moola (Oracle) 2023-01-30 12:18:29 -08:00 committed by Andrew Morton
parent fa4e3f5ffa
commit de1f505552
1 changed files with 12 additions and 12 deletions
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24
mm/mempolicy.c
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@ -442,21 +442,21 @@ static inline bool queue_pages_required(struct page *page,
} }
/* /*
* queue_pages_pmd() has three possible return values: * queue_folios_pmd() has three possible return values:
* 0 - pages are placed on the right node or queued successfully, or * 0 - folios are placed on the right node or queued successfully, or
* special page is met, i.e. huge zero page. * special page is met, i.e. huge zero page.
* 1 - there is unmovable page, and MPOL_MF_MOVE* & MPOL_MF_STRICT were * 1 - there is unmovable folio, and MPOL_MF_MOVE* & MPOL_MF_STRICT were
* specified. * specified.
* -EIO - is migration entry or only MPOL_MF_STRICT was specified and an * -EIO - is migration entry or only MPOL_MF_STRICT was specified and an
* existing page was already on a node that does not follow the * existing folio was already on a node that does not follow the
* policy. * policy.
*/ */
static int queue_pages_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr, static int queue_folios_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr,
unsigned long end, struct mm_walk *walk) unsigned long end, struct mm_walk *walk)
__releases(ptl) __releases(ptl)
{ {
int ret = 0; int ret = 0;
struct page *page; struct folio *folio;
struct queue_pages *qp = walk->private; struct queue_pages *qp = walk->private;
unsigned long flags; unsigned long flags;
@ -464,19 +464,19 @@ static int queue_pages_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr,
ret = -EIO; ret = -EIO;
goto unlock; goto unlock;
} }
page = pmd_page(*pmd); folio = pfn_folio(pmd_pfn(*pmd));
if (is_huge_zero_page(page)) { if (is_huge_zero_page(&folio->page)) {
walk->action = ACTION_CONTINUE; walk->action = ACTION_CONTINUE;
goto unlock; goto unlock;
} }
if (!queue_pages_required(page, qp)) if (!queue_pages_required(&folio->page, qp))
goto unlock; goto unlock;
flags = qp->flags; flags = qp->flags;
/* go to thp migration */ /* go to folio migration */
if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) {
if (!vma_migratable(walk->vma) || if (!vma_migratable(walk->vma) ||
migrate_page_add(page, qp->pagelist, flags)) { migrate_page_add(&folio->page, qp->pagelist, flags)) {
ret = 1; ret = 1;
goto unlock; goto unlock;
} }
@ -512,7 +512,7 @@ static int queue_pages_pte_range(pmd_t *pmd, unsigned long addr,
ptl = pmd_trans_huge_lock(pmd, vma); ptl = pmd_trans_huge_lock(pmd, vma);
if (ptl) if (ptl)
return queue_pages_pmd(pmd, ptl, addr, end, walk); return queue_folios_pmd(pmd, ptl, addr, end, walk);
if (pmd_trans_unstable(pmd)) if (pmd_trans_unstable(pmd))
return 0; return 0;