Showing the changes to include/uapi/linux (1 of 26 files). Show all
Unified · Split
| @@ -242,10 +242,18 @@ struct mdp_superblock_1 { · 241 unmodified lines | |||
| 242 | 242 | ||
| 243 | __le32 chunksize; /* in 512byte sectors */ | 243 | __le32 chunksize; /* in 512byte sectors */ |
| 244 | __le32 raid_disks; | 244 | __le32 raid_disks; |
| 245 | __le32 bitmap_offset; /* sectors after start of superblock that bitmap starts | 245 | union { |
| 246 | * NOTE: signed, so bitmap can be before superblock | 246 | __le32 bitmap_offset; /* sectors after start of superblock that bitmap starts |
| 247 | * only meaningful of feature_map[0] is set. | 247 | * NOTE: signed, so bitmap can be before superblock |
| 248 | */ | 248 | * only meaningful of feature_map[0] is set. |
| 249 | */ | ||
| 250 | |||
| 251 | /* only meaningful when feature_map[MD_FEATURE_PPL] is set */ | ||
| 252 | struct { | ||
| 253 | __le16 offset; /* sectors from start of superblock that ppl starts (signed) */ | ||
| 254 | __le16 size; /* ppl size in sectors */ | ||
| 255 | } ppl; | ||
| 256 | }; | ||
| 249 | 257 | ||
| 250 | /* These are only valid with feature bit '4' */ | 258 | /* These are only valid with feature bit '4' */ |
| 251 | __le32 new_level; /* new level we are reshaping to */ | 259 | __le32 new_level; /* new level we are reshaping to */ |
| @@ -318,6 +326,7 @@ struct mdp_superblock_1 { · 66 unmodified lines | |||
| 318 | */ | 326 | */ |
| 319 | #define MD_FEATURE_CLUSTERED 256 /* clustered MD */ | 327 | #define MD_FEATURE_CLUSTERED 256 /* clustered MD */ |
| 320 | #define MD_FEATURE_JOURNAL 512 /* support write cache */ | 328 | #define MD_FEATURE_JOURNAL 512 /* support write cache */ |
| 329 | #define MD_FEATURE_PPL 1024 /* support PPL */ | ||
| 321 | #define MD_FEATURE_ALL (MD_FEATURE_BITMAP_OFFSET \ | 330 | #define MD_FEATURE_ALL (MD_FEATURE_BITMAP_OFFSET \ |
| 322 | |MD_FEATURE_RECOVERY_OFFSET \ | 331 | |MD_FEATURE_RECOVERY_OFFSET \ |
| 323 | |MD_FEATURE_RESHAPE_ACTIVE \ | 332 | |MD_FEATURE_RESHAPE_ACTIVE \ |
| @@ -328,6 +337,7 @@ struct mdp_superblock_1 { · 4 unmodified lines | |||
| 328 | |MD_FEATURE_RECOVERY_BITMAP \ | 337 | |MD_FEATURE_RECOVERY_BITMAP \ |
| 329 | |MD_FEATURE_CLUSTERED \ | 338 | |MD_FEATURE_CLUSTERED \ |
| 330 | |MD_FEATURE_JOURNAL \ | 339 | |MD_FEATURE_JOURNAL \ |
| 340 | |MD_FEATURE_PPL \ | ||
| 331 | ) | 341 | ) |
| 332 | 342 | ||
| 333 | struct r5l_payload_header { | 343 | struct r5l_payload_header { |
| @@ -388,4 +398,31 @@ struct r5l_meta_block { · 54 unmodified lines | |||
| 388 | 398 | ||
| 389 | #define R5LOG_VERSION 0x1 | 399 | #define R5LOG_VERSION 0x1 |
| 390 | #define R5LOG_MAGIC 0x6433c509 | 400 | #define R5LOG_MAGIC 0x6433c509 |
| 401 | |||
| 402 | struct ppl_header_entry { | ||
| 403 | __le64 data_sector; /* raid sector of the new data */ | ||
| 404 | __le32 pp_size; /* length of partial parity */ | ||
| 405 | __le32 data_size; /* length of data */ | ||
| 406 | __le32 parity_disk; /* member disk containing parity */ | ||
| 407 | __le32 checksum; /* checksum of partial parity data for this | ||
| 408 | * entry (~crc32c) */ | ||
| 409 | } __attribute__ ((__packed__)); | ||
| 410 | |||
| 411 | #define PPL_HEADER_SIZE 4096 | ||
| 412 | #define PPL_HDR_RESERVED 512 | ||
| 413 | #define PPL_HDR_ENTRY_SPACE \ | ||
| 414 | (PPL_HEADER_SIZE - PPL_HDR_RESERVED - 4 * sizeof(__le32) - sizeof(__le64)) | ||
| 415 | #define PPL_HDR_MAX_ENTRIES \ | ||
| 416 | (PPL_HDR_ENTRY_SPACE / sizeof(struct ppl_header_entry)) | ||
| 417 | |||
| 418 | struct ppl_header { | ||
| 419 | __u8 reserved[PPL_HDR_RESERVED];/* reserved space, fill with 0xff */ | ||
| 420 | __le32 signature; /* signature (family number of volume) */ | ||
| 421 | __le32 padding; /* zero pad */ | ||
| 422 | __le64 generation; /* generation number of the header */ | ||
| 423 | __le32 entries_count; /* number of entries in entry array */ | ||
| 424 | __le32 checksum; /* checksum of the header (~crc32c) */ | ||
| 425 | struct ppl_header_entry entries[PPL_HDR_MAX_ENTRIES]; | ||
| 426 | } __attribute__ ((__packed__)); | ||
| 427 | |||
| 391 | #endif | 428 | #endif |