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| author | Pasha Tatashin <pasha.tatashin@soleen.com> | 2026-06-03 15:43:59 +0000 |
|---|---|---|
| committer | Mike Rapoport (Microsoft) <rppt@kernel.org> | 2026-06-03 21:15:46 +0300 |
| commit | 1d1153097f4dd417e2ea00404edec9fbd1d88f28 (patch) | |
| tree | 0374ad22193ecd5e64ca72c03ad187f78b00775c /include/linux | |
| parent | 2a441a14c2c03b39d1c89438dd28cef9d8fa57d5 (diff) | |
| download | lwn-1d1153097f4dd417e2ea00404edec9fbd1d88f28.tar.gz lwn-1d1153097f4dd417e2ea00404edec9fbd1d88f28.zip | |
liveupdate: Remove limit on the number of files per session
To remove the fixed limit on the number of preserved files per session,
transition the file metadata serialization from a single contiguous
memory block to a chain of linked blocks.
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pratyush Yadav (Google) <pratyush@kernel.org>
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Link: https://patch.msgid.link/20260603154402.468928-11-pasha.tatashin@soleen.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kho/abi/luo.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/kho/abi/luo.h b/include/linux/kho/abi/luo.h index 03d940d0f9bb..288076de6d4a 100644 --- a/include/linux/kho/abi/luo.h +++ b/include/linux/kho/abi/luo.h @@ -35,8 +35,8 @@ * * - struct luo_session_ser: * Metadata for a single session, including its name and a physical pointer - * to another preserved memory block containing an array of - * `struct luo_file_ser` for all files in that session. + * to the first `struct kho_block_header_ser` for all files in that session. + * Multiple blocks are linked via the `next` field in the header. * * - struct luo_file_ser: * Metadata for a single preserved file. Contains the `compatible` string to @@ -65,7 +65,7 @@ * The LUO state is registered under this KHO entry name. */ #define LUO_KHO_ENTRY_NAME "LUO" -#define LUO_ABI_COMPATIBLE "luo-v4" +#define LUO_ABI_COMPATIBLE "luo-v5" #define LUO_ABI_COMPAT_LEN ALIGN(sizeof(LUO_ABI_COMPATIBLE), 8) /** @@ -102,9 +102,10 @@ struct luo_file_ser { /** * struct luo_file_set_ser - Represents the serialized metadata for file set - * @files: The physical address of a contiguous memory block that holds - * the serialized state of files (array of luo_file_ser) in this file - * set. + * @files: The physical address of the first `struct kho_block_header_ser`. + * This structure is the header for a block of memory containing + * an array of `struct luo_file_ser` entries. Multiple blocks are + * linked via the `next` field in the header. * @count: The total number of files that were part of this session during * serialization. Used for iteration and validation during * restoration. |