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authorDavid Howells <dhowells@redhat.com>2019-03-25 16:38:31 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2019-09-12 21:05:34 -0400
commitf32356261d44d580649a7abce1156d15d49cf20f (patch)
tree140effa4ef1e1ff107ec8028d7c55862191264e6 /init
parent626c3920aeb4575f53c96b0d4ad4e651a21cbb66 (diff)
vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API
Convert the ramfs, shmem, tmpfs, devtmpfs and rootfs filesystems 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. Note that tmpfs is slightly tricky as it can contain embedded commas, so it can't be trivially split up using strsep() to break on commas in generic_parse_monolithic(). Instead, tmpfs has to supply its own generic parser. However, if tmpfs changes, then devtmpfs and rootfs, which are wrappers around tmpfs or ramfs, must change too - and thus so must ramfs, so these had to be converted also. [AV: rewritten] Signed-off-by: David Howells <dhowells@redhat.com> cc: Hugh Dickins <hughd@google.com> cc: linux-mm@kvack.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'init')
-rw-r--r--init/do_mounts.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 16c29e57f224..9634ecf3743d 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -627,18 +627,17 @@ out:
}
static bool is_tmpfs;
-static struct dentry *rootfs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int rootfs_init_fs_context(struct fs_context *fc)
{
if (IS_ENABLED(CONFIG_TMPFS) && is_tmpfs)
- return shmem_mount(fs_type, flags, dev_name, data);
+ return shmem_init_fs_context(fc);
- return ramfs_mount(fs_type, flags, dev_name, data);
+ return ramfs_init_fs_context(fc);
}
struct file_system_type rootfs_fs_type = {
.name = "rootfs",
- .mount = rootfs_mount,
+ .init_fs_context = rootfs_init_fs_context,
.kill_sb = kill_litter_super,
};

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