->get_sb() is no longer used, update documentation to use ->mount(). Also added
a example for struct file_system_type.
Signed-off-by: Sachidananda Urs <sacchi@xxxxxxxxx>
---
Documentation/filesystems/porting | 20 +++++++++++++-------
1 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 2bef2b3..d6d53fb 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -42,26 +42,32 @@ At some point that will become mandatory.
---
[mandatory]
-Change of file_system_type method (->read_super to ->get_sb)
+Change of file_system_type method (->read_super to ->get_sb to ->mount)
-->read_super() is no more. Ditto for DECLARE_FSTYPE and DECLARE_FSTYPE_DEV.
+->read_super() is no more and so is ->get_sb. Ditto for DECLARE_FSTYPE and
+ DECLARE_FSTYPE_DEV.
Turn your foo_read_super() into a function that would return 0 in case of
success and negative number in case of error (-EINVAL unless you have more
informative error value to report). Call it foo_fill_super(). Now declare
-int foo_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *foo_mount(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *data)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, foo_fill_super,
- mnt);
+ return mount_bdev(fs_type, flags, dev_name, data, foo_fill_super);
}
(or similar with s/bdev/nodev/ or s/bdev/single/, depending on the kind of
filesystem).
Replace DECLARE_FSTYPE... with explicit initializer and have ->get_sb set as
-foo_get_sb.
+foo_mount. For example:
+
+static struct file_system_type foo_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "foo",
+ .mount = foo_mount,
+};
---
[mandatory]
--
1.7.7.6
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