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shmem: convert shmem_fault() to use shmem_get_folio_gfp()

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No particular advantage for this function, but necessary to remove
shmem_getpage_gfp().

[hughd@google.com: fix crash]
  Link: https://lkml.kernel.org/r/7693a84-bdc2-27b5-2695-d0fe8566571f@google.com
Link: https://lkml.kernel.org/r/20220902194653.1739778-23-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-09-02 20:46:18 +01:00 committed by Andrew Morton
parent fc26babbc7
commit 68a541001a
1 changed files with 4 additions and 1 deletions
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5
mm/shmem.c
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@ -2065,6 +2065,7 @@ static vm_fault_t shmem_fault(struct vm_fault *vmf)
struct vm_area_struct *vma = vmf->vma;
struct inode *inode = file_inode(vma->vm_file);
gfp_t gfp = mapping_gfp_mask(inode->i_mapping);
struct folio *folio = NULL;
int err;
vm_fault_t ret = VM_FAULT_LOCKED;
@ -2127,10 +2128,12 @@ static vm_fault_t shmem_fault(struct vm_fault *vmf)
spin_unlock(&inode->i_lock);
}
err = shmem_getpage_gfp(inode, vmf->pgoff, &vmf->page, SGP_CACHE,
err = shmem_get_folio_gfp(inode, vmf->pgoff, &folio, SGP_CACHE,
gfp, vma, vmf, &ret);
if (err)
return vmf_error(err);
if (folio)
vmf->page = folio_file_page(folio, vmf->pgoff);
return ret;
}