From adf88aa8ea7ff143825a2a8a7193f92e0e6fc79b Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Thu, 12 May 2022 20:23:01 -0700 Subject: mm: remove alloc_pages_vma() All callers have now been converted to use vma_alloc_folio(), so convert the body of alloc_pages_vma() to allocate folios instead. Link: https://lkml.kernel.org/r/20220504182857.4013401-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Christoph Hellwig Signed-off-by: Andrew Morton --- mm/mempolicy.c | 51 +++++++++++++++++++++++++-------------------------- 1 file changed, 25 insertions(+), 26 deletions(-) (limited to 'mm/mempolicy.c') diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 3934476fb708..ed055e34d20c 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2136,44 +2136,55 @@ static struct page *alloc_pages_preferred_many(gfp_t gfp, unsigned int order, } /** - * alloc_pages_vma - Allocate a page for a VMA. + * vma_alloc_folio - Allocate a folio for a VMA. * @gfp: GFP flags. - * @order: Order of the GFP allocation. + * @order: Order of the folio. * @vma: Pointer to VMA or NULL if not available. * @addr: Virtual address of the allocation. Must be inside @vma. * @hugepage: For hugepages try only the preferred node if possible. * - * Allocate a page for a specific address in @vma, using the appropriate + * Allocate a folio for a specific address in @vma, using the appropriate * NUMA policy. When @vma is not NULL the caller must hold the mmap_lock * of the mm_struct of the VMA to prevent it from going away. Should be - * used for all allocations for pages that will be mapped into user space. + * used for all allocations for folios that will be mapped into user space. * - * Return: The page on success or NULL if allocation fails. + * Return: The folio on success or NULL if allocation fails. */ -struct page *alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, +struct folio *vma_alloc_folio(gfp_t gfp, int order, struct vm_area_struct *vma, unsigned long addr, bool hugepage) { struct mempolicy *pol; int node = numa_node_id(); - struct page *page; + struct folio *folio; int preferred_nid; nodemask_t *nmask; pol = get_vma_policy(vma, addr); if (pol->mode == MPOL_INTERLEAVE) { + struct page *page; unsigned nid; nid = interleave_nid(pol, vma, addr, PAGE_SHIFT + order); mpol_cond_put(pol); + gfp |= __GFP_COMP; page = alloc_page_interleave(gfp, order, nid); + if (page && order > 1) + prep_transhuge_page(page); + folio = (struct folio *)page; goto out; } if (pol->mode == MPOL_PREFERRED_MANY) { + struct page *page; + node = policy_node(gfp, pol, node); + gfp |= __GFP_COMP; page = alloc_pages_preferred_many(gfp, order, node, pol); mpol_cond_put(pol); + if (page && order > 1) + prep_transhuge_page(page); + folio = (struct folio *)page; goto out; } @@ -2200,8 +2211,8 @@ struct page *alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, * First, try to allocate THP only on local node, but * don't reclaim unnecessarily, just compact. */ - page = __alloc_pages_node(hpage_node, - gfp | __GFP_THISNODE | __GFP_NORETRY, order); + folio = __folio_alloc_node(gfp | __GFP_THISNODE | + __GFP_NORETRY, order, hpage_node); /* * If hugepage allocations are configured to always @@ -2209,8 +2220,9 @@ struct page *alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, * to prefer hugepage backing, retry allowing remote * memory with both reclaim and compact as well. */ - if (!page && (gfp & __GFP_DIRECT_RECLAIM)) - page = __alloc_pages(gfp, order, hpage_node, nmask); + if (!folio && (gfp & __GFP_DIRECT_RECLAIM)) + folio = __folio_alloc(gfp, order, hpage_node, + nmask); goto out; } @@ -2218,25 +2230,12 @@ struct page *alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, nmask = policy_nodemask(gfp, pol); preferred_nid = policy_node(gfp, pol, node); - page = __alloc_pages(gfp, order, preferred_nid, nmask); + folio = __folio_alloc(gfp, order, preferred_nid, nmask); mpol_cond_put(pol); out: - return page; -} -EXPORT_SYMBOL(alloc_pages_vma); - -struct folio *vma_alloc_folio(gfp_t gfp, int order, struct vm_area_struct *vma, - unsigned long addr, bool hugepage) -{ - struct folio *folio; - - folio = (struct folio *)alloc_pages_vma(gfp, order, vma, addr, - hugepage); - if (folio && order > 1) - prep_transhuge_page(&folio->page); - return folio; } +EXPORT_SYMBOL(vma_alloc_folio); /** * alloc_pages - Allocate pages. -- cgit v1.2.3-58-ga151