1951a39d68df598db08dfced8b4707755864a0492Ying Wang/**************************************************************************** 2951a39d68df598db08dfced8b4707755864a0492Ying Wang **************************************************************************** 3951a39d68df598db08dfced8b4707755864a0492Ying Wang *** 4951a39d68df598db08dfced8b4707755864a0492Ying Wang *** This header was automatically generated from a Linux kernel header 5951a39d68df598db08dfced8b4707755864a0492Ying Wang *** of the same name, to make information necessary for userspace to 6951a39d68df598db08dfced8b4707755864a0492Ying Wang *** call into the kernel available to libc. It contains only constants, 7951a39d68df598db08dfced8b4707755864a0492Ying Wang *** structures, and macros generated from the original header, and thus, 8951a39d68df598db08dfced8b4707755864a0492Ying Wang *** contains no copyrightable information. 9951a39d68df598db08dfced8b4707755864a0492Ying Wang *** 10951a39d68df598db08dfced8b4707755864a0492Ying Wang **************************************************************************** 11951a39d68df598db08dfced8b4707755864a0492Ying Wang ****************************************************************************/ 12951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef _LINUX_JBD_H 13951a39d68df598db08dfced8b4707755864a0492Ying Wang#define _LINUX_JBD_H 14951a39d68df598db08dfced8b4707755864a0492Ying Wang 15951a39d68df598db08dfced8b4707755864a0492Ying Wang#include "jfs_compat.h" 16951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_DEBUG 17951a39d68df598db08dfced8b4707755864a0492Ying Wang#define jfs_debug jbd_debug 18951a39d68df598db08dfced8b4707755864a0492Ying Wang 19951a39d68df598db08dfced8b4707755864a0492Ying Wang#define journal_oom_retry 1 20951a39d68df598db08dfced8b4707755864a0492Ying Wang 21951a39d68df598db08dfced8b4707755864a0492Ying Wang#undef JBD_PARANOID_IOFAIL 22951a39d68df598db08dfced8b4707755864a0492Ying Wang 23951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JBD_DEFAULT_MAX_COMMIT_AGE 5 24951a39d68df598db08dfced8b4707755864a0492Ying Wang 25951a39d68df598db08dfced8b4707755864a0492Ying Wang#define jbd_debug(f, a...) 26951a39d68df598db08dfced8b4707755864a0492Ying Wang 27951a39d68df598db08dfced8b4707755864a0492Ying Wang#define jbd_kmalloc(size, flags) __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry) 28951a39d68df598db08dfced8b4707755864a0492Ying Wang#define jbd_rep_kmalloc(size, flags) __jbd_kmalloc(__FUNCTION__, (size), (flags), 1) 29951a39d68df598db08dfced8b4707755864a0492Ying Wang 30951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_MIN_JOURNAL_BLOCKS 1024 31951a39d68df598db08dfced8b4707755864a0492Ying Wang 32951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_MAGIC_NUMBER 0xc03b3998U 33951a39d68df598db08dfced8b4707755864a0492Ying Wang 34951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_DESCRIPTOR_BLOCK 1 35951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_COMMIT_BLOCK 2 36951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_SUPERBLOCK_V1 3 37951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_SUPERBLOCK_V2 4 38951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_REVOKE_BLOCK 5 39951a39d68df598db08dfced8b4707755864a0492Ying Wang 40951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef struct journal_header_s 41951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 42951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 h_magic; 43951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 h_blocktype; 44951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 h_sequence; 45951a39d68df598db08dfced8b4707755864a0492Ying Wang} journal_header_t; 46951a39d68df598db08dfced8b4707755864a0492Ying Wang 47951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef struct journal_block_tag_s 48951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 49951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 t_blocknr; 50951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 t_flags; 51951a39d68df598db08dfced8b4707755864a0492Ying Wang} journal_block_tag_t; 52951a39d68df598db08dfced8b4707755864a0492Ying Wang 53951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef struct journal_revoke_header_s 54951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 55951a39d68df598db08dfced8b4707755864a0492Ying Wang journal_header_t r_header; 56951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 r_count; 57951a39d68df598db08dfced8b4707755864a0492Ying Wang} journal_revoke_header_t; 58951a39d68df598db08dfced8b4707755864a0492Ying Wang 59951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_FLAG_ESCAPE 1 60951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_FLAG_SAME_UUID 2 61951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_FLAG_DELETED 4 62951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_FLAG_LAST_TAG 8 63951a39d68df598db08dfced8b4707755864a0492Ying Wang 64951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef struct journal_superblock_s 65951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 66951a39d68df598db08dfced8b4707755864a0492Ying Wang 67951a39d68df598db08dfced8b4707755864a0492Ying Wang journal_header_t s_header; 68951a39d68df598db08dfced8b4707755864a0492Ying Wang 69951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_blocksize; 70951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_maxlen; 71951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_first; 72951a39d68df598db08dfced8b4707755864a0492Ying Wang 73951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_sequence; 74951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_start; 75951a39d68df598db08dfced8b4707755864a0492Ying Wang 76951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_errno; 77951a39d68df598db08dfced8b4707755864a0492Ying Wang 78951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_feature_compat; 79951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_feature_incompat; 80951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_feature_ro_compat; 81951a39d68df598db08dfced8b4707755864a0492Ying Wang 82951a39d68df598db08dfced8b4707755864a0492Ying Wang __u8 s_uuid[16]; 83951a39d68df598db08dfced8b4707755864a0492Ying Wang 84951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_nr_users; 85951a39d68df598db08dfced8b4707755864a0492Ying Wang 86951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_dynsuper; 87951a39d68df598db08dfced8b4707755864a0492Ying Wang 88951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_max_transaction; 89951a39d68df598db08dfced8b4707755864a0492Ying Wang __be32 s_max_trans_data; 90951a39d68df598db08dfced8b4707755864a0492Ying Wang 91951a39d68df598db08dfced8b4707755864a0492Ying Wang __u32 s_padding[44]; 92951a39d68df598db08dfced8b4707755864a0492Ying Wang 93951a39d68df598db08dfced8b4707755864a0492Ying Wang __u8 s_users[16*48]; 94951a39d68df598db08dfced8b4707755864a0492Ying Wang 95951a39d68df598db08dfced8b4707755864a0492Ying Wang} journal_superblock_t; 96951a39d68df598db08dfced8b4707755864a0492Ying Wang 97951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_HAS_COMPAT_FEATURE(j,mask) ((j)->j_format_version >= 2 && ((j)->j_superblock->s_feature_compat & cpu_to_be32((mask)))) 98951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_HAS_RO_COMPAT_FEATURE(j,mask) ((j)->j_format_version >= 2 && ((j)->j_superblock->s_feature_ro_compat & cpu_to_be32((mask)))) 99951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_HAS_INCOMPAT_FEATURE(j,mask) ((j)->j_format_version >= 2 && ((j)->j_superblock->s_feature_incompat & cpu_to_be32((mask)))) 100951a39d68df598db08dfced8b4707755864a0492Ying Wang 101951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_FEATURE_INCOMPAT_REVOKE 0x00000001 102951a39d68df598db08dfced8b4707755864a0492Ying Wang 103951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_KNOWN_COMPAT_FEATURES 0 104951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_KNOWN_ROCOMPAT_FEATURES 0 105951a39d68df598db08dfced8b4707755864a0492Ying Wang#define JFS_KNOWN_INCOMPAT_FEATURES JFS_FEATURE_INCOMPAT_REVOKE 106951a39d68df598db08dfced8b4707755864a0492Ying Wang 107951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_None 0 108951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_SyncData 1 109951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_Metadata 2 110951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_Forget 3 111951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_IO 4 112951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_Shadow 5 113951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_LogCtl 6 114951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_Reserved 7 115951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_Locked 8 116951a39d68df598db08dfced8b4707755864a0492Ying Wang#define BJ_Types 9 117951a39d68df598db08dfced8b4707755864a0492Ying Wang 118951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 119