David Howells
2019-Mar-14 16:08 UTC
[PATCH 00/38] VFS: Convert trivial filesystems and more
Hi Al,
Here's a set of patches that:
(1) Provides a convenience member in struct fs_context that is OR'd into
sb->s_iflags by sget_fc().
(2) Provides a convenience vfs_init_pseudo_fs_context() helper function
for doing most of the work in mounting a pseudo filesystem.
(3) Converts all the trivial filesystems that have no arguments to
fs_context.
(4) Converts binderfs (which was trivial before January).
(5) Converts ramfs, tmpfs, rootfs and devtmpfs.
(6) Kills off mount_pseudo(), mount_pseudo_xattr(), mount_ns(),
sget_userns().
The patches can be found here also:
https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
on branch:
mount-api-viro
David
---
David Howells (38):
vfs: Provide sb->s_iflags settings in fs_context struct
vfs: Provide a mount_pseudo-replacement for fs_context
vfs: Convert aio to fs_context
vfs: Convert anon_inodes to fs_context
vfs: Convert bdev to fs_context
vfs: Convert nsfs to fs_context
vfs: Convert pipe to fs_context
vfs: Convert zsmalloc to fs_context
vfs: Convert sockfs to fs_context
vfs: Convert dax to fs_context
vfs: Convert drm to fs_context
vfs: Convert ia64 perfmon to fs_context
vfs: Convert cxl to fs_context
vfs: Convert ocxlflash to fs_context
vfs: Convert virtio_balloon to fs_context
vfs: Convert btrfs_test to fs_context
vfs: Kill off mount_pseudo() and mount_pseudo_xattr()
vfs: Use sget_fc() for pseudo-filesystems
vfs: Convert binderfs to fs_context
vfs: Convert nfsctl to fs_context
vfs: Convert rpc_pipefs to fs_context
vfs: Kill off mount_ns()
vfs: Kill sget_userns()
vfs: Convert binfmt_misc to fs_context
vfs: Convert configfs to fs_context
vfs: Convert efivarfs to fs_context
vfs: Convert fusectl to fs_context
vfs: Convert qib_fs/ipathfs to fs_context
vfs: Convert ibmasmfs to fs_context
vfs: Convert oprofilefs to fs_context
vfs: Convert gadgetfs to fs_context
vfs: Convert xenfs to fs_context
vfs: Convert openpromfs to fs_context
vfs: Convert apparmorfs to fs_context
vfs: Convert securityfs to fs_context
vfs: Convert selinuxfs to fs_context
vfs: Convert smackfs to fs_context
tmpfs, devtmpfs, ramfs, rootfs: Convert to fs_context
arch/ia64/kernel/perfmon.c | 14 +
drivers/android/binderfs.c | 173 +++++++++-------
drivers/base/devtmpfs.c | 16 +
drivers/dax/super.c | 13 +
drivers/gpu/drm/drm_drv.c | 14 +
drivers/infiniband/hw/qib/qib_fs.c | 26 ++
drivers/misc/cxl/api.c | 10 -
drivers/misc/ibmasm/ibmasmfs.c | 21 +-
drivers/oprofile/oprofilefs.c | 20 +-
drivers/scsi/cxlflash/ocxl_hw.c | 21 +-
drivers/usb/gadget/legacy/inode.c | 21 +-
drivers/virtio/virtio_balloon.c | 19 +-
drivers/xen/xenfs/super.c | 21 +-
fs/aio.c | 15 +
fs/anon_inodes.c | 12 +
fs/binfmt_misc.c | 20 +-
fs/block_dev.c | 14 +
fs/btrfs/tests/btrfs-tests.c | 13 +
fs/configfs/mount.c | 20 +-
fs/efivarfs/super.c | 20 +-
fs/fuse/control.c | 20 +-
fs/libfs.c | 91 ++++++--
fs/nfsd/nfsctl.c | 33 ++-
fs/nsfs.c | 13 +
fs/openpromfs/inode.c | 20 +-
fs/pipe.c | 12 +
fs/ramfs/inode.c | 104 ++++++---
fs/super.c | 106 ++--------
include/linux/fs.h | 21 --
include/linux/fs_context.h | 8 +
include/linux/ramfs.h | 6 -
include/linux/shmem_fs.h | 4
init/do_mounts.c | 12 -
mm/shmem.c | 396 ++++++++++++++++++++++++------------
mm/zsmalloc.c | 19 +-
net/socket.c | 14 +
net/sunrpc/rpc_pipe.c | 34 ++-
security/apparmor/apparmorfs.c | 20 +-
security/inode.c | 21 +-
security/selinux/selinuxfs.c | 20 +-
security/smack/smackfs.c | 34 ++-
41 files changed, 902 insertions(+), 609 deletions(-)
David Howells
2019-Mar-14 16:10 UTC
[PATCH 15/38] vfs: Convert virtio_balloon to fs_context
Signed-off-by: David Howells <dhowells at redhat.com>
cc: "Michael S. Tsirkin" <mst at redhat.com>
cc: Jason Wang <jasowang at redhat.com>
cc: virtualization at lists.linux-foundation.org
---
drivers/virtio/virtio_balloon.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index f19061b585a4..89d67c8aa719 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -757,21 +757,22 @@ static int virtballoon_migratepage(struct balloon_dev_info
*vb_dev_info,
return MIGRATEPAGE_SUCCESS;
}
+#include <linux/fs_context.h>
-static struct dentry *balloon_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
-{
- static const struct dentry_operations ops = {
- .d_dname = simple_dname,
- };
+static const struct dentry_operations balloon_dops = {
+ .d_dname = simple_dname,
+};
- return mount_pseudo(fs_type, "balloon-kvm:", NULL, &ops,
- BALLOON_KVM_MAGIC);
+static int balloon_init_fs_context(struct fs_context *fc)
+{
+ return vfs_init_pseudo_fs_context(fc, "balloon-kvm:",
+ NULL, NULL,
+ &balloon_dops, BALLOON_KVM_MAGIC);
}
static struct file_system_type balloon_fs = {
.name = "balloon-kvm",
- .mount = balloon_mount,
+ .init_fs_context = balloon_init_fs_context,
.kill_sb = kill_anon_super,
};