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shmem: convert shmem_read_mapping_page_gfp() to use shmem_get_folio_gfp()

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Saves a couple of calls to compound_head().

Link: https://lkml.kernel.org/r/20220902194653.1739778-24-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 20:46:19 +01:00 committed by Andrew Morton
parent 68a541001a
commit a3a9c39704
1 changed files with 5 additions and 3 deletions
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8
mm/shmem.c
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@ -4270,18 +4270,20 @@ struct page *shmem_read_mapping_page_gfp(struct address_space *mapping,
{
#ifdef CONFIG_SHMEM
struct inode *inode = mapping->host;
struct folio *folio;
struct page *page;
int error;
BUG_ON(!shmem_mapping(mapping));
error = shmem_getpage_gfp(inode, index, &page, SGP_CACHE,
error = shmem_get_folio_gfp(inode, index, &folio, SGP_CACHE,
gfp, NULL, NULL, NULL);
if (error)
return ERR_PTR(error);
unlock_page(page);
folio_unlock(folio);
page = folio_file_page(folio, index);
if (PageHWPoison(page)) {
put_page(page);
folio_put(folio);
return ERR_PTR(-EIO);
}