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/* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * 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. * * 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 */ #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 | \ XFS_SB_VERSION_SECTORBIT | \ XFS_SB_VERSION_MOREBITSBIT) #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) /* * 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_DONOTUSEBIT1 0x00000001 #define XFS_SB_VERSION2_LAZYSBCOUNTBIT 0x00000002 /* Lazy SB counters */ #define XFS_SB_VERSION2_DONOTUSEBIT2 0x00000004 #define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */ #define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* Parent pointers */ #define XFS_SB_VERSION2_SASHFBITS 0xff000000 /* Mask: features that require changing PROM and SASH */ #define XFS_SB_VERSION2_OKREALFBITS \ (XFS_SB_VERSION2_ATTR2BIT) #define XFS_SB_VERSION2_OKSASHFBITS \ (0) #define XFS_SB_VERSION2_OKREALBITS \ (XFS_SB_VERSION2_OKREALFBITS | \ XFS_SB_VERSION2_OKSASHFBITS ) 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 */ __uint32_t sb_features2; /* additional feature bits */ } 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) #define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2) #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 | \ XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \ XFS_SB_FEATURES2) /* * 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__ 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)))); } #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) static inline unsigned xfs_sb_version_tonew(unsigned v) { return ((((v) == XFS_SB_VERSION_1) ? \ 0 : \ (((v) == XFS_SB_VERSION_2) ? \ XFS_SB_VERSION_ATTRBIT : \ (XFS_SB_VERSION_ATTRBIT | XFS_SB_VERSION_NLINKBIT))) | \ XFS_SB_VERSION_4); } #define XFS_SB_VERSION_TOOLD(v) xfs_sb_version_toold(v) static inline unsigned xfs_sb_version_toold(unsigned v) { return (((v) & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT)) ? \ 0 : \ (((v) & XFS_SB_VERSION_NLINKBIT) ? \ XFS_SB_VERSION_3 : \ (((v) & XFS_SB_VERSION_ATTRBIT) ? \ XFS_SB_VERSION_2 : \ XFS_SB_VERSION_1))); } #define XFS_SB_VERSION_HASATTR(sbp) xfs_sb_version_hasattr(sbp) 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)); } #define XFS_SB_VERSION_ADDATTR(sbp) xfs_sb_version_addattr(sbp) static inline void xfs_sb_version_addattr(xfs_sb_t *sbp) { (sbp)->sb_versionnum = (((sbp)->sb_versionnum == XFS_SB_VERSION_1) ? \ XFS_SB_VERSION_2 : \ ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) ? \ ((sbp)->sb_versionnum | XFS_SB_VERSION_ATTRBIT) : \ (XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT))); } #define XFS_SB_VERSION_HASNLINK(sbp) xfs_sb_version_hasnlink(sbp) 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)); } #define XFS_SB_VERSION_ADDNLINK(sbp) xfs_sb_version_addnlink(sbp) static inline void xfs_sb_version_addnlink(xfs_sb_t *sbp) { (sbp)->sb_versionnum = ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \ XFS_SB_VERSION_3 : \ ((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT)); } #define XFS_SB_VERSION_HASQUOTA(sbp) xfs_sb_version_hasquota(sbp) 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); } #define XFS_SB_VERSION_ADDQUOTA(sbp) xfs_sb_version_addquota(sbp) 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)); } #define XFS_SB_VERSION_HASALIGN(sbp) xfs_sb_version_hasalign(sbp) 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); } #define XFS_SB_VERSION_SUBALIGN(sbp) xfs_sb_version_subalign(sbp) 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); } #define XFS_SB_VERSION_HASDALIGN(sbp) xfs_sb_version_hasdalign(sbp) 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); } #define XFS_SB_VERSION_ADDDALIGN(sbp) xfs_sb_version_adddalign(sbp) static inline int xfs_sb_version_adddalign(xfs_sb_t *sbp) { return (sbp)->sb_versionnum = \ ((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT); } #define XFS_SB_VERSION_HASSHARED(sbp) xfs_sb_version_hasshared(sbp) 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); } #define XFS_SB_VERSION_ADDSHARED(sbp) xfs_sb_version_addshared(sbp) static inline int xfs_sb_version_addshared(xfs_sb_t *sbp) { return (sbp)->sb_versionnum = \ ((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT); } #define XFS_SB_VERSION_SUBSHARED(sbp) xfs_sb_version_subshared(sbp) static inline int xfs_sb_version_subshared(xfs_sb_t *sbp) { return (sbp)->sb_versionnum = \ ((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT); } #define XFS_SB_VERSION_HASDIRV2(sbp) xfs_sb_version_hasdirv2(sbp) 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); } #define XFS_SB_VERSION_HASLOGV2(sbp) xfs_sb_version_haslogv2(sbp) 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); } #define XFS_SB_VERSION_HASEXTFLGBIT(sbp) xfs_sb_version_hasextflgbit(sbp) 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); } #define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) xfs_sb_version_addextflgbit(sbp) static inline int xfs_sb_version_addextflgbit(xfs_sb_t *sbp) { return (sbp)->sb_versionnum = \ ((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT); } #define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) xfs_sb_version_subextflgbit(sbp) static inline int xfs_sb_version_subextflgbit(xfs_sb_t *sbp) { return (sbp)->sb_versionnum = \ ((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT); } #define XFS_SB_VERSION_HASSECTOR(sbp) xfs_sb_version_hassector(sbp) 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); } #define XFS_SB_VERSION_HASMOREBITS(sbp) xfs_sb_version_hasmorebits(sbp) 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); } /* * sb_features2 bit version macros. * * For example, for a bit defined as XFS_SB_VERSION2_FUNBIT, has a macro: * * SB_VERSION_HASFUNBIT(xfs_sb_t *sbp) * ((XFS_SB_VERSION_HASMOREBITS(sbp) && * ((sbp)->sb_features2 & XFS_SB_VERSION2_FUNBIT) */ #define XFS_SB_VERSION_HASATTR2(sbp) xfs_sb_version_hasattr2(sbp) static inline int xfs_sb_version_hasattr2(xfs_sb_t *sbp) { return (XFS_SB_VERSION_HASMOREBITS(sbp)) && \ ((sbp)->sb_features2 & XFS_SB_VERSION2_ATTR2BIT); } #define XFS_SB_VERSION_ADDATTR2(sbp) xfs_sb_version_addattr2(sbp) static inline void xfs_sb_version_addattr2(xfs_sb_t *sbp) { ((sbp)->sb_versionnum = \ ((sbp)->sb_versionnum | XFS_SB_VERSION_MOREBITSBIT), \ ((sbp)->sb_features2 = \ ((sbp)->sb_features2 | XFS_SB_VERSION2_ATTR2BIT))); } /* * end of superblock version macros */ #define XFS_SB_DADDR ((xfs_daddr_t)0) /* daddr in filesystem/ag */ #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)) #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)) /* * 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__ */