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NFS: replace __get_free_page() with kmalloc() in nfs_show_devname()

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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>
Link: https://patch.msgid.link/20260523-b4-fs-v1-5-275e36a83f0e@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Mike Rapoport (Microsoft) 2026-05-23 20:54:17 +03:00 committed by Christian Brauner
parent 4948580c76
commit eb28dd9d34
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1 changed files with 2 additions and 2 deletions
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4
fs/nfs/super.c
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@ -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);