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authorDavid Howells <dhowells@redhat.com>2019-03-25 16:38:30 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2019-07-04 22:01:59 -0400
commitc6a2c720d206d37e67e533af898c45d62fb07505 (patch)
tree2bce514c2f77d1e2d71500c9e20e7dc52ef34b5a /drivers/oprofile
parent129f809d2aa9c02cd1ab9714b265d828db3691ec (diff)
vfs: Convert oprofilefs to use the new mount API
Convert the oprofilefs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by: David Howells <dhowells@redhat.com> cc: Robert Richter <rric@kernel.org> cc: oprofile-list@lists.sf.net Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/oprofile')
-rw-r--r--drivers/oprofile/oprofilefs.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 4ea08979312c..0875f2f122b3 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/oprofile.h>
#include <linux/fs.h>
+#include <linux/fs_context.h>
#include <linux/pagemap.h>
#include <linux/uaccess.h>
@@ -238,7 +239,7 @@ struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name)
}
-static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent)
+static int oprofilefs_fill_super(struct super_block *sb, struct fs_context *fc)
{
struct inode *root_inode;
@@ -263,18 +264,25 @@ static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent)
return 0;
}
-
-static struct dentry *oprofilefs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int oprofilefs_get_tree(struct fs_context *fc)
{
- return mount_single(fs_type, flags, data, oprofilefs_fill_super);
+ return get_tree_single(fc, oprofilefs_fill_super);
}
+static const struct fs_context_operations oprofilefs_context_ops = {
+ .get_tree = oprofilefs_get_tree,
+};
+
+static int oprofilefs_init_fs_context(struct fs_context *fc)
+{
+ fc->ops = &oprofilefs_context_ops;
+ return 0;
+}
static struct file_system_type oprofilefs_type = {
.owner = THIS_MODULE,
.name = "oprofilefs",
- .mount = oprofilefs_mount,
+ .init_fs_context = oprofilefs_init_fs_context,
.kill_sb = kill_litter_super,
};
MODULE_ALIAS_FS("oprofilefs");