[PATCH 32/59] shmem: Convert shmem_symlink() to use a folio

["Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>]

While symlinks will always be < PAGE_SIZE, using the folio APIs gets
rid of unnecessary calls to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 mm/shmem.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index fda56776b510..9af2292e257b 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3076,7 +3076,7 @@ static int shmem_symlink(struct user_namespace *mnt_userns, struct inode *dir,
 	int error;
 	int len;
 	struct inode *inode;
-	struct page *page;
+	struct folio *folio;
 
 	len = strlen(symname) + 1;
 	if (len > PAGE_SIZE)
@@ -3104,18 +3104,18 @@ static int shmem_symlink(struct user_namespace *mnt_userns, struct inode *dir,
 		inode->i_op = &shmem_short_symlink_operations;
 	} else {
 		inode_nohighmem(inode);
-		error = shmem_getpage(inode, 0, &page, SGP_WRITE);
+		error = shmem_get_folio(inode, 0, &folio, SGP_WRITE);
 		if (error) {
 			iput(inode);
 			return error;
 		}
 		inode->i_mapping->a_ops = &shmem_aops;
 		inode->i_op = &shmem_symlink_inode_operations;
-		memcpy(page_address(page), symname, len);
-		SetPageUptodate(page);
-		set_page_dirty(page);
-		unlock_page(page);
-		put_page(page);
+		memcpy(folio_address(folio), symname, len);
+		folio_mark_uptodate(folio);
+		folio_mark_dirty(folio);
+		folio_unlock(folio);
+		folio_put(folio);
 	}
 	dir->i_size += BOGO_DIRENT_SIZE;
 	dir->i_ctime = dir->i_mtime = current_time(dir);
-- 
2.35.1