2005-04-17 02:20:36 +04:00
/*
2005-11-02 06:58:39 +03:00
* Copyright ( c ) 2000 - 2005 Silicon Graphics , Inc .
* All Rights Reserved .
2005-04-17 02:20:36 +04:00
*
2005-11-02 06:58:39 +03:00
* This program is free software ; you can redistribute it and / or
* modify it under the terms of the GNU General Public License as
2005-04-17 02:20:36 +04:00
* published by the Free Software Foundation .
*
2005-11-02 06:58:39 +03:00
* This program is distributed in the hope that it would be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the
* GNU General Public License for more details .
2005-04-17 02:20:36 +04:00
*
2005-11-02 06:58:39 +03:00
* You should have received a copy of the GNU General Public License
* along with this program ; if not , write the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA
2005-04-17 02:20:36 +04:00
*/
# ifndef __XFS_SB_H__
# define __XFS_SB_H__
/*
* Super block
* Fits into a sector - sized buffer at address 0 of each allocation group .
* Only the first of these is ever updated except during growfs .
*/
struct xfs_buf ;
struct xfs_mount ;
# define XFS_SB_MAGIC 0x58465342 /* 'XFSB' */
# define XFS_SB_VERSION_1 1 /* 5.3, 6.0.1, 6.1 */
# define XFS_SB_VERSION_2 2 /* 6.2 - attributes */
# define XFS_SB_VERSION_3 3 /* 6.2 - new inode version */
# define XFS_SB_VERSION_4 4 /* 6.2+ - bitmask version */
# define XFS_SB_VERSION_NUMBITS 0x000f
# define XFS_SB_VERSION_ALLFBITS 0xfff0
# define XFS_SB_VERSION_SASHFBITS 0xf000
# define XFS_SB_VERSION_REALFBITS 0x0ff0
# define XFS_SB_VERSION_ATTRBIT 0x0010
# define XFS_SB_VERSION_NLINKBIT 0x0020
# define XFS_SB_VERSION_QUOTABIT 0x0040
# define XFS_SB_VERSION_ALIGNBIT 0x0080
# define XFS_SB_VERSION_DALIGNBIT 0x0100
# define XFS_SB_VERSION_SHAREDBIT 0x0200
# define XFS_SB_VERSION_LOGV2BIT 0x0400
# define XFS_SB_VERSION_SECTORBIT 0x0800
# define XFS_SB_VERSION_EXTFLGBIT 0x1000
# define XFS_SB_VERSION_DIRV2BIT 0x2000
# define XFS_SB_VERSION_MOREBITSBIT 0x8000
# define XFS_SB_VERSION_OKSASHFBITS \
( XFS_SB_VERSION_EXTFLGBIT | \
XFS_SB_VERSION_DIRV2BIT )
# define XFS_SB_VERSION_OKREALFBITS \
( XFS_SB_VERSION_ATTRBIT | \
XFS_SB_VERSION_NLINKBIT | \
XFS_SB_VERSION_QUOTABIT | \
XFS_SB_VERSION_ALIGNBIT | \
XFS_SB_VERSION_DALIGNBIT | \
XFS_SB_VERSION_SHAREDBIT | \
XFS_SB_VERSION_LOGV2BIT | \
2005-11-02 02:34:53 +03:00
XFS_SB_VERSION_SECTORBIT | \
XFS_SB_VERSION_MOREBITSBIT )
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_OKSASHBITS \
( XFS_SB_VERSION_NUMBITS | \
XFS_SB_VERSION_REALFBITS | \
XFS_SB_VERSION_OKSASHFBITS )
# define XFS_SB_VERSION_OKREALBITS \
( XFS_SB_VERSION_NUMBITS | \
XFS_SB_VERSION_OKREALFBITS | \
XFS_SB_VERSION_OKSASHFBITS )
# define XFS_SB_VERSION_MKFS(ia,dia,extflag,dirv2,na,sflag,morebits) \
( ( ( ia ) | | ( dia ) | | ( extflag ) | | ( dirv2 ) | | ( na ) | | ( sflag ) | | \
( morebits ) ) ? \
( XFS_SB_VERSION_4 | \
( ( ia ) ? XFS_SB_VERSION_ALIGNBIT : 0 ) | \
( ( dia ) ? XFS_SB_VERSION_DALIGNBIT : 0 ) | \
( ( extflag ) ? XFS_SB_VERSION_EXTFLGBIT : 0 ) | \
( ( dirv2 ) ? XFS_SB_VERSION_DIRV2BIT : 0 ) | \
( ( na ) ? XFS_SB_VERSION_LOGV2BIT : 0 ) | \
( ( sflag ) ? XFS_SB_VERSION_SECTORBIT : 0 ) | \
( ( morebits ) ? XFS_SB_VERSION_MOREBITSBIT : 0 ) ) : \
XFS_SB_VERSION_1 )
/*
* There are two words to hold XFS " feature " bits : the original
* word , sb_versionnum , and sb_features2 . Whenever a bit is set in
* sb_features2 , the feature bit XFS_SB_VERSION_MOREBITSBIT must be set .
*
* These defines represent bits in sb_features2 .
*/
# define XFS_SB_VERSION2_REALFBITS 0x00ffffff /* Mask: features */
# define XFS_SB_VERSION2_RESERVED1BIT 0x00000001
2005-11-02 02:34:53 +03:00
# define XFS_SB_VERSION2_RESERVED2BIT 0x00000002
# define XFS_SB_VERSION2_RESERVED4BIT 0x00000004
# define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION2_SASHFBITS 0xff000000 / * Mask: features that
require changing
PROM and SASH */
# define XFS_SB_VERSION2_OKREALFBITS \
2005-11-02 02:34:53 +03:00
( XFS_SB_VERSION2_ATTR2BIT )
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION2_OKSASHFBITS \
( 0 )
# define XFS_SB_VERSION2_OKREALBITS \
( XFS_SB_VERSION2_OKREALFBITS | \
XFS_SB_VERSION2_OKSASHFBITS )
/*
* mkfs macro to set up sb_features2 word
*/
2005-11-02 02:34:53 +03:00
# define XFS_SB_VERSION2_MKFS(resvd1, sbcntr) 0
2005-04-17 02:20:36 +04:00
typedef struct xfs_sb
{
__uint32_t sb_magicnum ; /* magic number == XFS_SB_MAGIC */
__uint32_t sb_blocksize ; /* logical block size, bytes */
xfs_drfsbno_t sb_dblocks ; /* number of data blocks */
xfs_drfsbno_t sb_rblocks ; /* number of realtime blocks */
xfs_drtbno_t sb_rextents ; /* number of realtime extents */
uuid_t sb_uuid ; /* file system unique id */
xfs_dfsbno_t sb_logstart ; /* starting block of log if internal */
xfs_ino_t sb_rootino ; /* root inode number */
xfs_ino_t sb_rbmino ; /* bitmap inode for realtime extents */
xfs_ino_t sb_rsumino ; /* summary inode for rt bitmap */
xfs_agblock_t sb_rextsize ; /* realtime extent size, blocks */
xfs_agblock_t sb_agblocks ; /* size of an allocation group */
xfs_agnumber_t sb_agcount ; /* number of allocation groups */
xfs_extlen_t sb_rbmblocks ; /* number of rt bitmap blocks */
xfs_extlen_t sb_logblocks ; /* number of log blocks */
__uint16_t sb_versionnum ; /* header version == XFS_SB_VERSION */
__uint16_t sb_sectsize ; /* volume sector size, bytes */
__uint16_t sb_inodesize ; /* inode size, bytes */
__uint16_t sb_inopblock ; /* inodes per block */
char sb_fname [ 12 ] ; /* file system name */
__uint8_t sb_blocklog ; /* log2 of sb_blocksize */
__uint8_t sb_sectlog ; /* log2 of sb_sectsize */
__uint8_t sb_inodelog ; /* log2 of sb_inodesize */
__uint8_t sb_inopblog ; /* log2 of sb_inopblock */
__uint8_t sb_agblklog ; /* log2 of sb_agblocks (rounded up) */
__uint8_t sb_rextslog ; /* log2 of sb_rextents */
__uint8_t sb_inprogress ; /* mkfs is in progress, don't mount */
__uint8_t sb_imax_pct ; /* max % of fs for inode space */
/* statistics */
/*
* These fields must remain contiguous . If you really
* want to change their layout , make sure you fix the
* code in xfs_trans_apply_sb_deltas ( ) .
*/
__uint64_t sb_icount ; /* allocated inodes */
__uint64_t sb_ifree ; /* free inodes */
__uint64_t sb_fdblocks ; /* free data blocks */
__uint64_t sb_frextents ; /* free realtime extents */
/*
* End contiguous fields .
*/
xfs_ino_t sb_uquotino ; /* user quota inode */
xfs_ino_t sb_gquotino ; /* group quota inode */
__uint16_t sb_qflags ; /* quota flags */
__uint8_t sb_flags ; /* misc. flags */
__uint8_t sb_shared_vn ; /* shared version number */
xfs_extlen_t sb_inoalignmt ; /* inode chunk alignment, fsblocks */
__uint32_t sb_unit ; /* stripe or raid unit */
__uint32_t sb_width ; /* stripe or raid width */
__uint8_t sb_dirblklog ; /* log2 of dir block size (fsbs) */
__uint8_t sb_logsectlog ; /* log2 of the log sector size */
__uint16_t sb_logsectsize ; /* sector size for the log, bytes */
__uint32_t sb_logsunit ; /* stripe unit size for the log */
2005-11-02 02:34:53 +03:00
__uint32_t sb_features2 ; /* additional feature bits */
2005-04-17 02:20:36 +04:00
} xfs_sb_t ;
/*
* Sequence number values for the fields .
*/
typedef enum {
XFS_SBS_MAGICNUM , XFS_SBS_BLOCKSIZE , XFS_SBS_DBLOCKS , XFS_SBS_RBLOCKS ,
XFS_SBS_REXTENTS , XFS_SBS_UUID , XFS_SBS_LOGSTART , XFS_SBS_ROOTINO ,
XFS_SBS_RBMINO , XFS_SBS_RSUMINO , XFS_SBS_REXTSIZE , XFS_SBS_AGBLOCKS ,
XFS_SBS_AGCOUNT , XFS_SBS_RBMBLOCKS , XFS_SBS_LOGBLOCKS ,
XFS_SBS_VERSIONNUM , XFS_SBS_SECTSIZE , XFS_SBS_INODESIZE ,
XFS_SBS_INOPBLOCK , XFS_SBS_FNAME , XFS_SBS_BLOCKLOG ,
XFS_SBS_SECTLOG , XFS_SBS_INODELOG , XFS_SBS_INOPBLOG , XFS_SBS_AGBLKLOG ,
XFS_SBS_REXTSLOG , XFS_SBS_INPROGRESS , XFS_SBS_IMAX_PCT , XFS_SBS_ICOUNT ,
XFS_SBS_IFREE , XFS_SBS_FDBLOCKS , XFS_SBS_FREXTENTS , XFS_SBS_UQUOTINO ,
XFS_SBS_GQUOTINO , XFS_SBS_QFLAGS , XFS_SBS_FLAGS , XFS_SBS_SHARED_VN ,
XFS_SBS_INOALIGNMT , XFS_SBS_UNIT , XFS_SBS_WIDTH , XFS_SBS_DIRBLKLOG ,
XFS_SBS_LOGSECTLOG , XFS_SBS_LOGSECTSIZE , XFS_SBS_LOGSUNIT ,
XFS_SBS_FEATURES2 ,
XFS_SBS_FIELDCOUNT
} xfs_sb_field_t ;
/*
* Mask values , defined based on the xfs_sb_field_t values .
* Only define the ones we ' re using .
*/
# define XFS_SB_MVAL(x) (1LL << XFS_SBS_ ## x)
# define XFS_SB_UUID XFS_SB_MVAL(UUID)
# define XFS_SB_FNAME XFS_SB_MVAL(FNAME)
# define XFS_SB_ROOTINO XFS_SB_MVAL(ROOTINO)
# define XFS_SB_RBMINO XFS_SB_MVAL(RBMINO)
# define XFS_SB_RSUMINO XFS_SB_MVAL(RSUMINO)
# define XFS_SB_VERSIONNUM XFS_SB_MVAL(VERSIONNUM)
# define XFS_SB_UQUOTINO XFS_SB_MVAL(UQUOTINO)
# define XFS_SB_GQUOTINO XFS_SB_MVAL(GQUOTINO)
# define XFS_SB_QFLAGS XFS_SB_MVAL(QFLAGS)
# define XFS_SB_SHARED_VN XFS_SB_MVAL(SHARED_VN)
# define XFS_SB_UNIT XFS_SB_MVAL(UNIT)
# define XFS_SB_WIDTH XFS_SB_MVAL(WIDTH)
2005-11-02 02:34:53 +03:00
# define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2)
2005-04-17 02:20:36 +04:00
# define XFS_SB_NUM_BITS ((int)XFS_SBS_FIELDCOUNT)
# define XFS_SB_ALL_BITS ((1LL << XFS_SB_NUM_BITS) - 1)
# define XFS_SB_MOD_BITS \
( XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
2005-11-02 02:34:53 +03:00
XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \
XFS_SB_FEATURES2 )
2005-04-17 02:20:36 +04:00
/*
* Misc . Flags - warning - these will be cleared by xfs_repair unless
* a feature bit is set when the flag is used .
*/
# define XFS_SBF_NOFLAGS 0x00 /* no flags set */
# define XFS_SBF_READONLY 0x01 /* only read-only mounts allowed */
/*
* define max . shared version we can interoperate with
*/
# define XFS_SB_MAX_SHARED_VN 0
# define XFS_SB_VERSION_NUM(sbp) ((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
# define XFS_SB_GOOD_VERSION(sbp) xfs_sb_good_version(sbp)
# ifdef __KERNEL__
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_good_version ( xfs_sb_t * sbp )
{
return ( ( ( sbp - > sb_versionnum > = XFS_SB_VERSION_1 ) & & \
( sbp - > sb_versionnum < = XFS_SB_VERSION_3 ) ) | | \
( ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
! ( ( sbp - > sb_versionnum & ~ XFS_SB_VERSION_OKREALBITS ) | | \
( ( sbp - > sb_versionnum & XFS_SB_VERSION_MOREBITSBIT ) & & \
( sbp - > sb_features2 & ~ XFS_SB_VERSION2_OKREALBITS ) ) ) & & \
( sbp - > sb_shared_vn < = XFS_SB_MAX_SHARED_VN ) ) ) ;
}
# else
static inline int xfs_sb_good_version ( xfs_sb_t * sbp )
{
return ( ( ( sbp - > sb_versionnum > = XFS_SB_VERSION_1 ) & & \
( sbp - > sb_versionnum < = XFS_SB_VERSION_3 ) ) | | \
( ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
! ( ( sbp - > sb_versionnum & ~ XFS_SB_VERSION_OKREALBITS ) | | \
( ( sbp - > sb_versionnum & XFS_SB_VERSION_MOREBITSBIT ) & & \
( sbp - > sb_features2 & ~ XFS_SB_VERSION2_OKREALBITS ) ) ) & & \
( ! ( sbp - > sb_versionnum & XFS_SB_VERSION_SHAREDBIT ) | | \
( sbp - > sb_shared_vn < = XFS_SB_MAX_SHARED_VN ) ) ) ) ;
}
2005-04-17 02:20:36 +04:00
# endif /* __KERNEL__ */
# define XFS_SB_GOOD_SASH_VERSION(sbp) \
( ( ( ( sbp ) - > sb_versionnum > = XFS_SB_VERSION_1 ) & & \
( ( sbp ) - > sb_versionnum < = XFS_SB_VERSION_3 ) ) | | \
( ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
! ( ( sbp ) - > sb_versionnum & ~ XFS_SB_VERSION_OKSASHBITS ) ) )
# define XFS_SB_VERSION_TONEW(v) xfs_sb_version_tonew(v)
2005-11-02 06:38:42 +03:00
static inline unsigned xfs_sb_version_tonew ( unsigned v )
{
return ( ( ( ( v ) = = XFS_SB_VERSION_1 ) ? \
2005-04-17 02:20:36 +04:00
0 : \
( ( ( v ) = = XFS_SB_VERSION_2 ) ? \
XFS_SB_VERSION_ATTRBIT : \
( XFS_SB_VERSION_ATTRBIT | XFS_SB_VERSION_NLINKBIT ) ) ) | \
2005-11-02 06:38:42 +03:00
XFS_SB_VERSION_4 ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_TOOLD(v) xfs_sb_version_toold(v)
2005-11-02 06:38:42 +03:00
static inline unsigned xfs_sb_version_toold ( unsigned v )
{
return ( ( ( v ) & ( XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT ) ) ? \
2005-04-17 02:20:36 +04:00
0 : \
( ( ( v ) & XFS_SB_VERSION_NLINKBIT ) ? \
XFS_SB_VERSION_3 : \
( ( ( v ) & XFS_SB_VERSION_ATTRBIT ) ? \
XFS_SB_VERSION_2 : \
2005-11-02 06:38:42 +03:00
XFS_SB_VERSION_1 ) ) ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASATTR(sbp) xfs_sb_version_hasattr(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasattr ( xfs_sb_t * sbp )
{
return ( ( sbp ) - > sb_versionnum = = XFS_SB_VERSION_2 ) | | \
( ( sbp ) - > sb_versionnum = = XFS_SB_VERSION_3 ) | | \
( ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_ATTRBIT ) ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_ADDATTR(sbp) xfs_sb_version_addattr(sbp)
2005-11-02 06:38:42 +03:00
static inline void xfs_sb_version_addattr ( xfs_sb_t * sbp )
{
( sbp ) - > sb_versionnum = ( ( ( sbp ) - > sb_versionnum = = XFS_SB_VERSION_1 ) ? \
2005-04-17 02:20:36 +04:00
XFS_SB_VERSION_2 : \
( ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) ? \
( ( sbp ) - > sb_versionnum | XFS_SB_VERSION_ATTRBIT ) : \
2005-11-02 06:38:42 +03:00
( XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT ) ) ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASNLINK(sbp) xfs_sb_version_hasnlink(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasnlink ( xfs_sb_t * sbp )
{
return ( ( sbp ) - > sb_versionnum = = XFS_SB_VERSION_3 ) | | \
( ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_NLINKBIT ) ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_ADDNLINK(sbp) xfs_sb_version_addnlink(sbp)
2005-11-02 06:38:42 +03:00
static inline void xfs_sb_version_addnlink ( xfs_sb_t * sbp )
{
( sbp ) - > sb_versionnum = ( ( sbp ) - > sb_versionnum < = XFS_SB_VERSION_2 ? \
2005-04-17 02:20:36 +04:00
XFS_SB_VERSION_3 : \
2005-11-02 06:38:42 +03:00
( ( sbp ) - > sb_versionnum | XFS_SB_VERSION_NLINKBIT ) ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASQUOTA(sbp) xfs_sb_version_hasquota(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasquota ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_QUOTABIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_ADDQUOTA(sbp) xfs_sb_version_addquota(sbp)
2005-11-02 06:38:42 +03:00
static inline void xfs_sb_version_addquota ( xfs_sb_t * sbp )
{
( sbp ) - > sb_versionnum = \
( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ? \
( ( sbp ) - > sb_versionnum | XFS_SB_VERSION_QUOTABIT ) : \
( XFS_SB_VERSION_TONEW ( ( sbp ) - > sb_versionnum ) | \
XFS_SB_VERSION_QUOTABIT ) ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASALIGN(sbp) xfs_sb_version_hasalign(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasalign ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_ALIGNBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_SUBALIGN(sbp) xfs_sb_version_subalign(sbp)
2005-11-02 06:38:42 +03:00
static inline void xfs_sb_version_subalign ( xfs_sb_t * sbp )
{
( sbp ) - > sb_versionnum = \
XFS_SB_VERSION_TOOLD ( ( sbp ) - > sb_versionnum & ~ XFS_SB_VERSION_ALIGNBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASDALIGN(sbp) xfs_sb_version_hasdalign(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasdalign ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_DALIGNBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_ADDDALIGN(sbp) xfs_sb_version_adddalign(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_adddalign ( xfs_sb_t * sbp )
{
return ( sbp ) - > sb_versionnum = \
( ( sbp ) - > sb_versionnum | XFS_SB_VERSION_DALIGNBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASSHARED(sbp) xfs_sb_version_hasshared(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasshared ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_SHAREDBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_ADDSHARED(sbp) xfs_sb_version_addshared(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_addshared ( xfs_sb_t * sbp )
{
return ( sbp ) - > sb_versionnum = \
( ( sbp ) - > sb_versionnum | XFS_SB_VERSION_SHAREDBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_SUBSHARED(sbp) xfs_sb_version_subshared(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_subshared ( xfs_sb_t * sbp )
{
return ( sbp ) - > sb_versionnum = \
( ( sbp ) - > sb_versionnum & ~ XFS_SB_VERSION_SHAREDBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASDIRV2(sbp) xfs_sb_version_hasdirv2(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasdirv2 ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_DIRV2BIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASLOGV2(sbp) xfs_sb_version_haslogv2(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_haslogv2 ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_LOGV2BIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASEXTFLGBIT(sbp) xfs_sb_version_hasextflgbit(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasextflgbit ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_EXTFLGBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) xfs_sb_version_addextflgbit(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_addextflgbit ( xfs_sb_t * sbp )
{
return ( sbp ) - > sb_versionnum = \
( ( sbp ) - > sb_versionnum | XFS_SB_VERSION_EXTFLGBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) xfs_sb_version_subextflgbit(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_subextflgbit ( xfs_sb_t * sbp )
{
return ( sbp ) - > sb_versionnum = \
( ( sbp ) - > sb_versionnum & ~ XFS_SB_VERSION_EXTFLGBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASSECTOR(sbp) xfs_sb_version_hassector(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hassector ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_SECTORBIT ) ;
}
2005-04-17 02:20:36 +04:00
# define XFS_SB_VERSION_HASMOREBITS(sbp) xfs_sb_version_hasmorebits(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasmorebits ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_NUM ( sbp ) = = XFS_SB_VERSION_4 ) & & \
( ( sbp ) - > sb_versionnum & XFS_SB_VERSION_MOREBITSBIT ) ;
}
2005-04-17 02:20:36 +04:00
/*
* sb_features2 bit version macros .
*
2005-11-02 02:34:53 +03:00
* For example , for a bit defined as XFS_SB_VERSION2_FUNBIT , has a macro :
2005-04-17 02:20:36 +04:00
*
2005-11-02 02:34:53 +03:00
* SB_VERSION_HASFUNBIT ( xfs_sb_t * sbp )
2005-04-17 02:20:36 +04:00
* ( ( XFS_SB_VERSION_HASMOREBITS ( sbp ) & &
2005-11-02 02:34:53 +03:00
* ( ( sbp ) - > sb_features2 & XFS_SB_VERSION2_FUNBIT )
2005-04-17 02:20:36 +04:00
*/
2005-11-02 06:38:42 +03:00
2005-11-02 02:34:53 +03:00
# define XFS_SB_VERSION_HASATTR2(sbp) xfs_sb_version_hasattr2(sbp)
2005-11-02 06:38:42 +03:00
static inline int xfs_sb_version_hasattr2 ( xfs_sb_t * sbp )
{
return ( XFS_SB_VERSION_HASMOREBITS ( sbp ) ) & & \
( ( sbp ) - > sb_features2 & XFS_SB_VERSION2_ATTR2BIT ) ;
}
2005-04-17 02:20:36 +04:00
2005-11-02 02:34:53 +03:00
# define XFS_SB_VERSION_ADDATTR2(sbp) xfs_sb_version_addattr2(sbp)
2005-11-02 06:38:42 +03:00
static inline void xfs_sb_version_addattr2 ( xfs_sb_t * sbp )
{
2005-11-02 02:34:53 +03:00
( ( sbp ) - > sb_versionnum = \
( ( sbp ) - > sb_versionnum | XFS_SB_VERSION_MOREBITSBIT ) , \
( ( sbp ) - > sb_features2 = \
2005-11-02 06:38:42 +03:00
( ( sbp ) - > sb_features2 | XFS_SB_VERSION2_ATTR2BIT ) ) ) ;
}
2005-04-17 02:20:36 +04:00
/*
* end of superblock version macros
*/
2005-11-02 06:38:42 +03:00
# define XFS_SB_DADDR ((xfs_daddr_t)0) /* daddr in filesystem/ag */
2005-04-17 02:20:36 +04:00
# define XFS_SB_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_SB_DADDR)
# define XFS_BUF_TO_SBP(bp) ((xfs_sb_t *)XFS_BUF_PTR(bp))
2005-11-02 06:38:42 +03:00
# define XFS_HDR_BLOCK(mp,d) ((xfs_agblock_t)XFS_BB_TO_FSBT(mp,d))
# define XFS_DADDR_TO_FSB(mp,d) XFS_AGB_TO_FSB(mp, \
XFS_DADDR_TO_AGNO ( mp , d ) , XFS_DADDR_TO_AGBNO ( mp , d ) )
# define XFS_FSB_TO_DADDR(mp,fsbno) XFS_AGB_TO_DADDR(mp, \
XFS_FSB_TO_AGNO ( mp , fsbno ) , XFS_FSB_TO_AGBNO ( mp , fsbno ) )
2005-04-17 02:20:36 +04:00
/*
* File system sector to basic block conversions .
*/
# define XFS_FSS_TO_BB(mp,sec) ((sec) << (mp)->m_sectbb_log)
# define XFS_BB_TO_FSS(mp,bb) \
( ( ( bb ) + ( XFS_FSS_TO_BB ( mp , 1 ) - 1 ) ) > > ( mp ) - > m_sectbb_log )
# define XFS_BB_TO_FSST(mp,bb) ((bb) >> (mp)->m_sectbb_log)
/*
* File system sector to byte conversions .
*/
# define XFS_FSS_TO_B(mp,sectno) ((xfs_fsize_t)(sectno) << (mp)->m_sb.sb_sectlog)
# define XFS_B_TO_FSST(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_sectlog)
/*
* File system block to basic block conversions .
*/
# define XFS_FSB_TO_BB(mp,fsbno) ((fsbno) << (mp)->m_blkbb_log)
# define XFS_BB_TO_FSB(mp,bb) \
( ( ( bb ) + ( XFS_FSB_TO_BB ( mp , 1 ) - 1 ) ) > > ( mp ) - > m_blkbb_log )
# define XFS_BB_TO_FSBT(mp,bb) ((bb) >> (mp)->m_blkbb_log)
# define XFS_BB_FSB_OFFSET(mp,bb) ((bb) & ((mp)->m_bsize - 1))
/*
* File system block to byte conversions .
*/
# define XFS_FSB_TO_B(mp,fsbno) ((xfs_fsize_t)(fsbno) << (mp)->m_sb.sb_blocklog)
# define XFS_B_TO_FSB(mp,b) \
( ( ( ( __uint64_t ) ( b ) ) + ( mp ) - > m_blockmask ) > > ( mp ) - > m_sb . sb_blocklog )
# define XFS_B_TO_FSBT(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_blocklog)
# define XFS_B_FSB_OFFSET(mp,b) ((b) & (mp)->m_blockmask)
# endif /* __XFS_SB_H__ */