[PATCH 05/17] NFS: replace __get_free_page() with kmalloc() in nfs_show_devname()

[Mike Rapoport (Microsoft)]

nfs_show_devname() allocates a tmemporary buffer __get_free_page().

kmalloc() is a better API for such use and it also provides better
scalability and more debugging possibilities.

Replace use of __get_free_page() with kmalloc().

Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
---
 fs/nfs/super.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 4cd420b14ce3..8f8a03a68d3d 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -623,7 +623,7 @@ static void show_implementation_id(struct seq_file *m, struct nfs_server *nfss)
 
 int nfs_show_devname(struct seq_file *m, struct dentry *root)
 {
-	char *page = (char *) __get_free_page(GFP_KERNEL);
+	char *page = kmalloc(PAGE_SIZE, GFP_KERNEL);
 	char *devname, *dummy;
 	int err = 0;
 	if (!page)
@@ -633,7 +633,7 @@ int nfs_show_devname(struct seq_file *m, struct dentry *root)
 		err = PTR_ERR(devname);
 	else
 		seq_escape(m, devname, " \t\n\\");
-	free_page((unsigned long)page);
+	kfree(page);
 	return err;
 }
 EXPORT_SYMBOL_GPL(nfs_show_devname);

-- 
2.53.0