From: "Pratyush Yadav (Google)" <[email protected]>
Hi,
This series adds support for preserving file seals when preserving a
memfd using LUO. Patch 1 exports some memfd seal manipulation functions
and patch 2 adds support for preserving them. Since it makes changes to
the serialized data structure for memfd, it also bumps the version
number.
Changes in v2:
- Define the set of seals supported by this version. Support for any
other seal would need a version bump. Make sure the memfd only has
this set of seals. Reject any that don't.
- Make seals a u32 since uABI defined it as an int. Change the
__reserved into flags.
Pratyush Yadav (Google) (2):
memfd: export memfd_{add,get}_seals()
mm: memfd_luo: preserve file seals
include/linux/kho/abi/memfd.h | 18 +++++++++++++++++-
include/linux/memfd.h | 12 ++++++++++++
mm/memfd.c | 4 ++--
mm/memfd_luo.c | 35 +++++++++++++++++++++++++++++++++--
4 files changed, 64 insertions(+), 5 deletions(-)
--
2.53.0.335.g19a08e0c02-goog
