Use a folio throughout this function, saving a couple of calls to
compound_head().
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
mm/shmem.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index b26ab3167040..45212001effd 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2482,6 +2482,7 @@ shmem_write_begin(struct file *file, struct address_space *mapping,
struct inode *inode = mapping->host;
struct shmem_inode_info *info = SHMEM_I(inode);
pgoff_t index = pos >> PAGE_SHIFT;
+ struct folio *folio;
int ret = 0;
/* i_rwsem is held by caller */
@@ -2493,14 +2494,15 @@ shmem_write_begin(struct file *file, struct address_space *mapping,
return -EPERM;
}
- ret = shmem_getpage(inode, index, pagep, SGP_WRITE);
+ ret = shmem_get_folio(inode, index, &folio, SGP_WRITE);
if (ret)
return ret;
+ *pagep = folio_file_page(folio, index);
if (PageHWPoison(*pagep)) {
- unlock_page(*pagep);
- put_page(*pagep);
+ folio_unlock(folio);
+ folio_put(folio);
*pagep = NULL;
return -EIO;
}
--
2.35.1
