Pull idmapping fixes from Christian Brauner:

 - Since Seth joined as co-maintainer for idmapped mounts we decided to
   use a shared git tree. Konstantin suggested we use vfs/idmapping.git
   on kernel.org under the vfs/ namespace. So this updates the tree in
   the maintainers file.

 - Ensure that POSIX ACLs checking, getting, and setting works correctly
   for filesystems mountable with a filesystem idmapping that want to
   support idmapped mounts.

   Since no filesystems mountable with an fs_idmapping do yet support
   idmapped mounts there is no problem. But this could change in the
   future, so add a check to refuse to create idmapped mounts when the
   mounter is not privileged over the mount's idmapping.

 - Check that caller is privileged over the idmapping that will be
   attached to a mount.

   Currently no FS_USERNS_MOUNT filesystems support idmapped mounts,
   thus this is not a problem as only CAP_SYS_ADMIN in init_user_ns is
   allowed to set up idmapped mounts. But this could change in the
   future, so add a check to refuse to create idmapped mounts when the
   mounter is not privileged over the mount's idmapping.

 - Fix POSIX ACLs for ntfs3. While looking at our current POSIX ACL
   handling in the context of some overlayfs work I went through a range
   of other filesystems checking how they handle them currently and
   encountered a few bugs in ntfs3.

   I've sent this some time ago and the fixes haven't been picked up
   even though the pull request for other ntfs3 fixes got sent after.
   This should really be fixed as right now POSIX ACLs are broken in
   certain circumstances for ntfs3.

* tag 'fs.idmapped.fixes.v6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  ntfs: fix acl handling
  fs: require CAP_SYS_ADMIN in target namespace for idmapped mounts
  MAINTAINERS: update idmapping tree
  acl: handle idmapped mounts for idmapped filesystems

While looking at our current POSIX ACL handling in the context of some
overlayfs work I went through a range of other filesystems checking how they
handle them currently and encountered ntfs3.

The posic_acl_{from,to}_xattr() helpers always need to operate on the
filesystem idmapping. Since ntfs3 can only be mounted in the initial user
namespace the relevant idmapping is init_user_ns.

The posix_acl_{from,to}_xattr() helpers are concerned with translating between
the kernel internal struct posix_acl{_entry} and the uapi struct
posix_acl_xattr_{header,entry} and the kernel internal data structure is cached
filesystem wide.

Additional idmappings such as the caller's idmapping or the mount's idmapping
are handled higher up in the VFS. Individual filesystems usually do not need to
concern themselves with these.

The posix_acl_valid() helper is concerned with checking whether the values in
the kernel internal struct posix_acl can be represented in the filesystem's
idmapping. IOW, if they can be written to disk. So this helper too needs to
take the filesystem's idmapping.

Fixes: be71b5cba2e6 ("fs/ntfs3: Add attrib operations")
Cc: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Cc: ntfs3@lists.linux.dev
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>

Pull ntfs3 updates from Konstantin Komarov:

 - implement FALLOC_FL_INSERT_RANGE

 - fix some logic errors

 - fixed xfstests (tested on x86_64): generic/064 generic/213
   generic/300 generic/361 generic/449 generic/485

 - some dead code removed or refactored

* tag 'ntfs3_for_6.0' of https://github.com/Paragon-Software-Group/linux-ntfs3: (39 commits)
  fs/ntfs3: uninitialized variable in ntfs_set_acl_ex()
  fs/ntfs3: Remove unused function wnd_bits
  fs/ntfs3: Make ni_ins_new_attr return error
  fs/ntfs3: Create MFT zone only if length is large enough
  fs/ntfs3: Refactoring attr_insert_range to restore after errors
  fs/ntfs3: Refactoring attr_punch_hole to restore after errors
  fs/ntfs3: Refactoring attr_set_size to restore after errors
  fs/ntfs3: New function ntfs_bad_inode
  fs/ntfs3: Make MFT zone less fragmented
  fs/ntfs3: Check possible errors in run_pack in advance
  fs/ntfs3: Added comments to frecord functions
  fs/ntfs3: Fill duplicate info in ni_add_name
  fs/ntfs3: Make static function attr_load_runs
  fs/ntfs3: Add new argument is_mft to ntfs_mark_rec_free
  fs/ntfs3: Remove unused mi_mark_free
  fs/ntfs3: Fix very fragmented case in attr_punch_hole
  fs/ntfs3: Fix work with fragmented xattr
  fs/ntfs3: Make ntfs_fallocate return -ENOSPC instead of -EFBIG
  fs/ntfs3: extend ni_insert_nonresident to return inserted ATTR_LIST_ENTRY
  fs/ntfs3: Check reserved size for maximum allowed
  ...

The goto out calls kfree(value) on an uninitialized pointer.  Just
return directly as the other error paths do.

Fixes: 460bbf2990b3 ("fs/ntfs3: Do not change mode if ntfs_set_ea failed")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

Since the function wnd_bits is defined but not called in any file, it is
a useless function, and we delete it in view of the brevity of the code.

Remove some warnings found by running scripts/kernel-doc, which is
caused by using 'make W=1'.

fs/ntfs3/bitmap.c:54:19: warning: unused function 'wnd_bits' [-Wunused-function].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

Pull folio updates from Matthew Wilcox:

 - Fix an accounting bug that made NR_FILE_DIRTY grow without limit
   when running xfstests

 - Convert more of mpage to use folios

 - Remove add_to_page_cache() and add_to_page_cache_locked()

 - Convert find_get_pages_range() to filemap_get_folios()

 - Improvements to the read_cache_page() family of functions

 - Remove a few unnecessary checks of PageError

 - Some straightforward filesystem conversions to use folios

 - Split PageMovable users out from address_space_operations into
   their own movable_operations

 - Convert aops->migratepage to aops->migrate_folio

 - Remove nobh support (Christoph Hellwig)

* tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache: (78 commits)
  fs: remove the NULL get_block case in mpage_writepages
  fs: don't call ->writepage from __mpage_writepage
  fs: remove the nobh helpers
  jfs: stop using the nobh helper
  ext2: remove nobh support
  ntfs3: refactor ntfs_writepages
  mm/folio-compat: Remove migration compatibility functions
  fs: Remove aops->migratepage()
  secretmem: Convert to migrate_folio
  hugetlb: Convert to migrate_folio
  aio: Convert to migrate_folio
  f2fs: Convert to filemap_migrate_folio()
  ubifs: Convert to filemap_migrate_folio()
  btrfs: Convert btrfs_migratepage to migrate_folio
  mm/migrate: Add filemap_migrate_folio()
  mm/migrate: Convert migrate_page() to migrate_folio()
  nfs: Convert to migrate_folio
  btrfs: Convert btree_migratepage to migrate_folio
  mm/migrate: Convert expected_page_refs() to folio_expected_refs()
  mm/migrate: Convert buffer_migrate_page() to buffer_migrate_folio()
  ...

Function ni_ins_new_attr now returns ERR_PTR(err),
so we check it now in other functions like ni_expand_mft_list

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

Also removed uninformative print

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

Added done and undo labels for restoring after errors

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

Added comments to code
Added new function run_clone to make a copy of run
Added done and undo labels for restoring after errors

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>