[PATCH 05/17] NFS: replace __get_free_page() with kmalloc() in nfs_show_devname()
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Date: 2026-05-23 17:55:17
Also in:
linux-fsdevel, linux-mm, linux-nfs, lkml, ocfs2-devel
Subsystem:
filesystems (vfs and infrastructure), nfs, sunrpc, and lockd clients, the rest · Maintainers:
Alexander Viro, Christian Brauner, Trond Myklebust, Anna Schumaker, Linus Torvalds
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@kernel.org> --- 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