diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kho/abi/memfd.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/linux/kho/abi/memfd.h b/include/linux/kho/abi/memfd.h index 68cb6303b846..08b10fea2afc 100644 --- a/include/linux/kho/abi/memfd.h +++ b/include/linux/kho/abi/memfd.h @@ -56,10 +56,24 @@ struct memfd_luo_folio_ser { u64 index; } __packed; +/* + * The set of seals this version supports preserving. If support for any new + * seals is needed, add it here and bump version. + */ +#define MEMFD_LUO_ALL_SEALS (F_SEAL_SEAL | \ + F_SEAL_SHRINK | \ + F_SEAL_GROW | \ + F_SEAL_WRITE | \ + F_SEAL_FUTURE_WRITE | \ + F_SEAL_EXEC) + /** * struct memfd_luo_ser - Main serialization structure for a memfd. * @pos: The file's current position (f_pos). * @size: The total size of the file in bytes (i_size). + * @seals: The seals present on the memfd. The seals are uABI so it is safe + * to directly use them in the ABI. + * @flags: Flags for the file. Unused flag bits must be set to 0. * @nr_folios: Number of folios in the folios array. * @folios: KHO vmalloc descriptor pointing to the array of * struct memfd_luo_folio_ser. @@ -67,11 +81,13 @@ struct memfd_luo_folio_ser { struct memfd_luo_ser { u64 pos; u64 size; + u32 seals; + u32 flags; u64 nr_folios; struct kho_vmalloc folios; } __packed; /* The compatibility string for memfd file handler */ -#define MEMFD_LUO_FH_COMPATIBLE "memfd-v1" +#define MEMFD_LUO_FH_COMPATIBLE "memfd-v2" #endif /* _LINUX_KHO_ABI_MEMFD_H */ |