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Code Issues Releases Wiki Activity

mm/shmem: add shmem_alloc_folio() 

Call vma_alloc_folio() directly instead of alloc_page_vma().  Add a
shmem_alloc_page() wrapper to avoid changing the callers.

Link: https://lkml.kernel.org/r/20220504182857.4013401-21-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-05-12 20:23:04 -07:00 committed by Andrew Morton
parent 069d849cde
commit 0c023ef52d
1 changed files with 10 additions and 4 deletions
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14
mm/shmem.c
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@ -1544,17 +1544,23 @@ static struct page *shmem_alloc_hugepage(gfp_t gfp,
return &folio->page;
}
static struct page *shmem_alloc_page(gfp_t gfp,
static struct folio *shmem_alloc_folio(gfp_t gfp,
struct shmem_inode_info *info, pgoff_t index)
{
struct vm_area_struct pvma;
struct page *page;
struct folio *folio;
shmem_pseudo_vma_init(&pvma, info, index);
page = alloc_page_vma(gfp, &pvma, 0);
folio = vma_alloc_folio(gfp, 0, &pvma, 0, false);
shmem_pseudo_vma_destroy(&pvma);
return page;
return folio;
}
static struct page *shmem_alloc_page(gfp_t gfp,
struct shmem_inode_info *info, pgoff_t index)
{
return &shmem_alloc_folio(gfp, info, index)->page;
}
static struct page *shmem_alloc_and_acct_page(gfp_t gfp,