#include "jfs_compat.h"

Data Structures
struct	journal_header_s

struct	commit_header

struct	journal_block_tag_s

struct	jbd2_journal_block_tail

struct	jbd2_journal_revoke_header_s

struct	jbd2_journal_revoke_tail

struct	journal_superblock_s

Macros
#define	JBD2_DEBUG

#define	jfs_debug jbd_debug

#define	journal_oom_retry 1

#define	JBD2_DEFAULT_MAX_COMMIT_AGE 5

#define	jbd_debug(f, a...)

#define	JBD2_MIN_JOURNAL_BLOCKS 1024

#define	JBD2_MAGIC_NUMBER 0xc03b3998U /* The first 4 bytes of /dev/random! */

#define	JBD2_DESCRIPTOR_BLOCK 1

#define	JBD2_COMMIT_BLOCK 2

#define	JBD2_SUPERBLOCK_V1 3

#define	JBD2_SUPERBLOCK_V2 4

#define	JBD2_REVOKE_BLOCK 5

#define	JBD2_CRC32_CHKSUM 1

#define	JBD2_MD5_CHKSUM 2

#define	JBD2_SHA1_CHKSUM 3

#define	JBD2_CRC32C_CHKSUM 4

#define	JBD2_CRC32_CHKSUM_SIZE 4

#define	JBD2_CHECKSUM_BYTES (32 / sizeof(u32))

#define	JBD2_TAG_SIZE32 (offsetof(journal_block_tag_t, t_blocknr_high))

#define	JBD2_TAG_SIZE64 (sizeof(journal_block_tag_t))

#define	JBD2_FLAG_ESCAPE 1 /* on-disk block is escaped */

#define	JBD2_FLAG_SAME_UUID 2 /* block has same uuid as previous */

#define	JBD2_FLAG_DELETED 4 /* block deleted by this transaction */

#define	JBD2_FLAG_LAST_TAG 8 /* last tag in this descriptor block */

#define	JBD2_HAS_COMPAT_FEATURE(j, mask)

#define	JBD2_HAS_RO_COMPAT_FEATURE(j, mask)

#define	JBD2_HAS_INCOMPAT_FEATURE(j, mask)

#define	JBD2_FEATURE_COMPAT_CHECKSUM 0x00000001

#define	JBD2_FEATURE_INCOMPAT_REVOKE 0x00000001

#define	JBD2_FEATURE_INCOMPAT_64BIT 0x00000002

#define	JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT 0x00000004

#define	JBD2_FEATURE_INCOMPAT_CSUM_V2 0x00000008

#define	JBD2_KNOWN_COMPAT_FEATURES JBD2_FEATURE_COMPAT_CHECKSUM

#define	JBD2_KNOWN_ROCOMPAT_FEATURES 0

#define	JBD2_KNOWN_INCOMPAT_FEATURES

#define	BJ_None 0 /* Not journaled */

#define	BJ_Metadata 1 /* Normal journaled metadata */

#define	BJ_Forget 2 /* Buffer superseded by this transaction */

#define	BJ_IO 3 /* Buffer is for temporary IO use */

#define	BJ_Shadow 4 /* Buffer contents being shadowed to the log */

#define	BJ_LogCtl 5 /* Buffer contains log descriptors */

#define	BJ_Reserved 6 /* Buffer is reserved for access by journal */

#define	BJ_Types 7

Typedefs
typedef struct journal_header_s	journal_header_t

typedef struct journal_block_tag_s	journal_block_tag_t

typedef struct jbd2_journal_revoke_header_s	jbd2_journal_revoke_header_t

typedef struct journal_superblock_s	journal_superblock_t

Functions
void *	jbd2_alloc (size_t size, gfp_t flags)

void	jbd2_free (void *ptr, size_t size)

int	jbd2_journal_blocks_per_page (struct inode *inode)

size_t	journal_tag_bytes (journal_t *journal)

int	jbd_blocks_per_page (struct inode *inode)

Macro Definition Documentation

#define BJ_Forget 2 /* Buffer superseded by this transaction */

Definition at line 1297 of file jbd2.h.

#define BJ_IO 3 /* Buffer is for temporary IO use */

Definition at line 1298 of file jbd2.h.

#define BJ_LogCtl 5 /* Buffer contains log descriptors */

Definition at line 1300 of file jbd2.h.

#define BJ_Metadata 1 /* Normal journaled metadata */

Definition at line 1296 of file jbd2.h.

#define BJ_None 0 /* Not journaled */

Definition at line 1295 of file jbd2.h.

#define BJ_Reserved 6 /* Buffer is reserved for access by journal */

Definition at line 1301 of file jbd2.h.

#define BJ_Shadow 4 /* Buffer contents being shadowed to the log */

Definition at line 1299 of file jbd2.h.

#define BJ_Types 7

Definition at line 1302 of file jbd2.h.

#define JBD2_CHECKSUM_BYTES (32 / sizeof(u32))

Definition at line 155 of file jbd2.h.

#define JBD2_COMMIT_BLOCK 2

Definition at line 130 of file jbd2.h.

#define JBD2_CRC32_CHKSUM 1

Definition at line 148 of file jbd2.h.

#define JBD2_CRC32_CHKSUM_SIZE 4

Definition at line 153 of file jbd2.h.

#define JBD2_CRC32C_CHKSUM 4

Definition at line 151 of file jbd2.h.

#define JBD2_DEBUG

Definition at line 22 of file jbd2.h.

#define JBD2_DEFAULT_MAX_COMMIT_AGE 5

Definition at line 51 of file jbd2.h.

#define JBD2_DESCRIPTOR_BLOCK 1

Definition at line 129 of file jbd2.h.

#define JBD2_FEATURE_COMPAT_CHECKSUM 0x00000001

Definition at line 287 of file jbd2.h.

#define JBD2_FEATURE_INCOMPAT_64BIT 0x00000002

Definition at line 290 of file jbd2.h.

#define JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT 0x00000004

Definition at line 291 of file jbd2.h.

#define JBD2_FEATURE_INCOMPAT_CSUM_V2 0x00000008

Definition at line 292 of file jbd2.h.

#define JBD2_FEATURE_INCOMPAT_REVOKE 0x00000001

Definition at line 289 of file jbd2.h.

#define JBD2_FLAG_DELETED 4 /* block deleted by this transaction */

Definition at line 222 of file jbd2.h.

#define JBD2_FLAG_ESCAPE 1 /* on-disk block is escaped */

Definition at line 220 of file jbd2.h.

#define JBD2_FLAG_LAST_TAG 8 /* last tag in this descriptor block */

Definition at line 223 of file jbd2.h.

#define JBD2_FLAG_SAME_UUID 2 /* block has same uuid as previous */

Definition at line 221 of file jbd2.h.

#define JBD2_HAS_COMPAT_FEATURE	(	j,
		mask
	)

Value:

((j)->j_format_version >= 2 && \

((j)->j_superblock->s_feature_compat & cpu_to_be32((mask))))

Definition at line 277 of file jbd2.h.

#define JBD2_HAS_INCOMPAT_FEATURE	(	j,
		mask
	)

Value:

((j)->j_format_version >= 2 && \

((j)->j_superblock->s_feature_incompat & cpu_to_be32((mask))))

Definition at line 283 of file jbd2.h.

#define JBD2_HAS_RO_COMPAT_FEATURE	(	j,
		mask
	)

Value:

((j)->j_format_version >= 2 && \

((j)->j_superblock->s_feature_ro_compat & cpu_to_be32((mask))))

Definition at line 280 of file jbd2.h.

#define JBD2_KNOWN_COMPAT_FEATURES JBD2_FEATURE_COMPAT_CHECKSUM

Definition at line 295 of file jbd2.h.

#define JBD2_KNOWN_INCOMPAT_FEATURES

Value:

(JBD2_FEATURE_INCOMPAT_REVOKE | \
                    JBD2_FEATURE_INCOMPAT_64BIT | \
                    JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT | \
                    JBD2_FEATURE_INCOMPAT_CSUM_V2)

Definition at line 297 of file jbd2.h.

#define JBD2_KNOWN_ROCOMPAT_FEATURES 0

Definition at line 296 of file jbd2.h.

#define JBD2_MAGIC_NUMBER 0xc03b3998U /* The first 4 bytes of /dev/random! */

Definition at line 119 of file jbd2.h.

#define JBD2_MD5_CHKSUM 2

Definition at line 149 of file jbd2.h.

#define JBD2_MIN_JOURNAL_BLOCKS 1024

Definition at line 77 of file jbd2.h.

#define JBD2_REVOKE_BLOCK 5

Definition at line 133 of file jbd2.h.

#define JBD2_SHA1_CHKSUM 3

Definition at line 150 of file jbd2.h.

#define JBD2_SUPERBLOCK_V1 3

Definition at line 131 of file jbd2.h.

#define JBD2_SUPERBLOCK_V2 4

Definition at line 132 of file jbd2.h.

#define JBD2_TAG_SIZE32 (offsetof(journal_block_tag_t, t_blocknr_high))

Definition at line 196 of file jbd2.h.

#define JBD2_TAG_SIZE64 (sizeof(journal_block_tag_t))

Definition at line 197 of file jbd2.h.

#define jbd_debug	(	f,
		a...
	)

Definition at line 71 of file jbd2.h.

#define jfs_debug jbd_debug

Definition at line 23 of file jbd2.h.

#define journal_oom_retry 1

Definition at line 37 of file jbd2.h.

Typedef Documentation

typedef struct jbd2_journal_revoke_header_s jbd2_journal_revoke_header_t

typedef struct journal_block_tag_s journal_block_tag_t

typedef struct journal_header_s journal_header_t

typedef struct journal_superblock_s journal_superblock_t

Function Documentation

void* jbd2_alloc	(	size_t	size,
		gfp_t	flags
	)

Definition at line 2195 of file journal.c.

void jbd2_free	(	void *	ptr,
		size_t	size
	)

Definition at line 2221 of file journal.c.

int jbd2_journal_blocks_per_page ( struct inode * inode )

Definition at line 2096 of file journal.c.

int jbd_blocks_per_page ( struct inode * inode )

size_t journal_tag_bytes ( journal_t * journal )

Definition at line 2104 of file journal.c.

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

Typedef Documentation

Function Documentation