| /* |
| * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 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. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., 59 |
| * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| * |
| * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, |
| * Mountain View, CA 94043, or: |
| * |
| * http://www.sgi.com |
| * |
| * For further information regarding this notice, see: |
| * |
| * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ |
| */ |
| #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) |
| #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 |
| #define XFS_SB_VERSION2_SASHFBITS 0xff000000 /* Mask: features that |
| require changing |
| PROM and SASH */ |
| |
| #define XFS_SB_VERSION2_OKREALFBITS \ |
| (0) |
| #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 |
| */ |
| #define XFS_SB_VERSION2_MKFS(xyz) \ |
| ((xyz) ? 0 : 0) |
| |
| 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; /* additonal 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_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) |
| |
| /* |
| * 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 |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_NUM) |
| int xfs_sb_version_num(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_NUM(sbp) xfs_sb_version_num(sbp) |
| #else |
| #define XFS_SB_VERSION_NUM(sbp) ((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_GOOD_VERSION) |
| int xfs_sb_good_version(xfs_sb_t *sbp); |
| #define XFS_SB_GOOD_VERSION(sbp) xfs_sb_good_version(sbp) |
| #else |
| #define XFS_SB_GOOD_VERSION_INT(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_OKREALBITS) || \ |
| (((sbp)->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) && \ |
| ((sbp)->sb_features2 & ~XFS_SB_VERSION2_OKREALBITS))) |
| |
| #ifdef __KERNEL__ |
| #define XFS_SB_GOOD_VERSION(sbp) \ |
| (XFS_SB_GOOD_VERSION_INT(sbp) && \ |
| (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN) )) |
| #else |
| /* |
| * extra 2 paren's here (( to unconfuse paren-matching editors |
| * like vi because XFS_SB_GOOD_VERSION_INT is a partial expression |
| * and the two XFS_SB_GOOD_VERSION's each 2 more close paren's to |
| * complete the expression. |
| */ |
| #define XFS_SB_GOOD_VERSION(sbp) \ |
| (XFS_SB_GOOD_VERSION_INT(sbp) && \ |
| (!((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) || \ |
| (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN)) )) |
| #endif /* __KERNEL__ */ |
| #endif |
| |
| #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))) |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TONEW) |
| unsigned xfs_sb_version_tonew(unsigned v); |
| #define XFS_SB_VERSION_TONEW(v) xfs_sb_version_tonew(v) |
| #else |
| #define XFS_SB_VERSION_TONEW(v) \ |
| ((((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) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TOOLD) |
| unsigned xfs_sb_version_toold(unsigned v); |
| #define XFS_SB_VERSION_TOOLD(v) xfs_sb_version_toold(v) |
| #else |
| #define XFS_SB_VERSION_TOOLD(v) \ |
| (((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))) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASATTR) |
| int xfs_sb_version_hasattr(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASATTR(sbp) xfs_sb_version_hasattr(sbp) |
| #else |
| #define XFS_SB_VERSION_HASATTR(sbp) \ |
| (((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))) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDATTR) |
| void xfs_sb_version_addattr(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_ADDATTR(sbp) xfs_sb_version_addattr(sbp) |
| #else |
| #define XFS_SB_VERSION_ADDATTR(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)))) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASNLINK) |
| int xfs_sb_version_hasnlink(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASNLINK(sbp) xfs_sb_version_hasnlink(sbp) |
| #else |
| #define XFS_SB_VERSION_HASNLINK(sbp) \ |
| (((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_NLINKBIT))) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDNLINK) |
| void xfs_sb_version_addnlink(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_ADDNLINK(sbp) xfs_sb_version_addnlink(sbp) |
| #else |
| #define XFS_SB_VERSION_ADDNLINK(sbp) \ |
| ((sbp)->sb_versionnum = \ |
| ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \ |
| XFS_SB_VERSION_3 : \ |
| ((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT))) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASQUOTA) |
| int xfs_sb_version_hasquota(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASQUOTA(sbp) xfs_sb_version_hasquota(sbp) |
| #else |
| #define XFS_SB_VERSION_HASQUOTA(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_QUOTABIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDQUOTA) |
| void xfs_sb_version_addquota(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_ADDQUOTA(sbp) xfs_sb_version_addquota(sbp) |
| #else |
| #define XFS_SB_VERSION_ADDQUOTA(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))) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASALIGN) |
| int xfs_sb_version_hasalign(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASALIGN(sbp) xfs_sb_version_hasalign(sbp) |
| #else |
| #define XFS_SB_VERSION_HASALIGN(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_ALIGNBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBALIGN) |
| void xfs_sb_version_subalign(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_SUBALIGN(sbp) xfs_sb_version_subalign(sbp) |
| #else |
| #define XFS_SB_VERSION_SUBALIGN(sbp) \ |
| ((sbp)->sb_versionnum = \ |
| XFS_SB_VERSION_TOOLD((sbp)->sb_versionnum & ~XFS_SB_VERSION_ALIGNBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDALIGN) |
| int xfs_sb_version_hasdalign(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASDALIGN(sbp) xfs_sb_version_hasdalign(sbp) |
| #else |
| #define XFS_SB_VERSION_HASDALIGN(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_DALIGNBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDDALIGN) |
| int xfs_sb_version_adddalign(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_ADDDALIGN(sbp) xfs_sb_version_adddalign(sbp) |
| #else |
| #define XFS_SB_VERSION_ADDDALIGN(sbp) \ |
| ((sbp)->sb_versionnum = \ |
| ((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSHARED) |
| int xfs_sb_version_hasshared(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASSHARED(sbp) xfs_sb_version_hasshared(sbp) |
| #else |
| #define XFS_SB_VERSION_HASSHARED(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDSHARED) |
| int xfs_sb_version_addshared(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_ADDSHARED(sbp) xfs_sb_version_addshared(sbp) |
| #else |
| #define XFS_SB_VERSION_ADDSHARED(sbp) \ |
| ((sbp)->sb_versionnum = \ |
| ((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBSHARED) |
| int xfs_sb_version_subshared(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_SUBSHARED(sbp) xfs_sb_version_subshared(sbp) |
| #else |
| #define XFS_SB_VERSION_SUBSHARED(sbp) \ |
| ((sbp)->sb_versionnum = \ |
| ((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDIRV2) |
| int xfs_sb_version_hasdirv2(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASDIRV2(sbp) xfs_sb_version_hasdirv2(sbp) |
| #else |
| #define XFS_SB_VERSION_HASDIRV2(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_DIRV2BIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASLOGV2) |
| int xfs_sb_version_haslogv2(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASLOGV2(sbp) xfs_sb_version_haslogv2(sbp) |
| #else |
| #define XFS_SB_VERSION_HASLOGV2(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_LOGV2BIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASEXTFLGBIT) |
| int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASEXTFLGBIT(sbp) xfs_sb_version_hasextflgbit(sbp) |
| #else |
| #define XFS_SB_VERSION_HASEXTFLGBIT(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDEXTFLGBIT) |
| int xfs_sb_version_addextflgbit(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) xfs_sb_version_addextflgbit(sbp) |
| #else |
| #define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) \ |
| ((sbp)->sb_versionnum = \ |
| ((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBEXTFLGBIT) |
| int xfs_sb_version_subextflgbit(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) xfs_sb_version_subextflgbit(sbp) |
| #else |
| #define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) \ |
| ((sbp)->sb_versionnum = \ |
| ((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSECTOR) |
| int xfs_sb_version_hassector(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASSECTOR(sbp) xfs_sb_version_hassector(sbp) |
| #else |
| #define XFS_SB_VERSION_HASSECTOR(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASMOREBITSBIT) |
| int xfs_sb_version_hasmorebits(xfs_sb_t *sbp); |
| #define XFS_SB_VERSION_HASMOREBITS(sbp) xfs_sb_version_hasmorebits(sbp) |
| #else |
| #define XFS_SB_VERSION_HASMOREBITS(sbp) \ |
| ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ |
| ((sbp)->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT)) |
| #endif |
| |
| /* |
| * sb_features2 bit version macros. |
| * |
| * For example, for a bit defined as XFS_SB_VERSION2_YBIT, has a macro: |
| * |
| * SB_VERSION_HASYBIT(xfs_sb_t *sbp) |
| * ((XFS_SB_VERSION_HASMOREBITS(sbp) && |
| * ((sbp)->sb_versionnum & XFS_SB_VERSION2_YBIT) |
| */ |
| |
| /* |
| * end of superblock version macros |
| */ |
| |
| #define XFS_SB_DADDR ((xfs_daddr_t)0) /* daddr in filesystem/ag */ |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_BLOCK) |
| xfs_agblock_t xfs_sb_block(struct xfs_mount *mp); |
| #define XFS_SB_BLOCK(mp) xfs_sb_block(mp) |
| #else |
| #define XFS_SB_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_SB_DADDR) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_HDR_BLOCK) |
| xfs_agblock_t xfs_hdr_block(struct xfs_mount *mp, xfs_daddr_t d); |
| #define XFS_HDR_BLOCK(mp,d) xfs_hdr_block(mp,d) |
| #else |
| #define XFS_HDR_BLOCK(mp,d) ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp,d))) |
| #endif |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_FSB) |
| xfs_fsblock_t xfs_daddr_to_fsb(struct xfs_mount *mp, xfs_daddr_t d); |
| #define XFS_DADDR_TO_FSB(mp,d) xfs_daddr_to_fsb(mp,d) |
| #else |
| #define XFS_DADDR_TO_FSB(mp,d) \ |
| XFS_AGB_TO_FSB(mp, XFS_DADDR_TO_AGNO(mp,d), XFS_DADDR_TO_AGBNO(mp,d)) |
| #endif |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_DADDR) |
| xfs_daddr_t xfs_fsb_to_daddr(struct xfs_mount *mp, xfs_fsblock_t fsbno); |
| #define XFS_FSB_TO_DADDR(mp,fsbno) xfs_fsb_to_daddr(mp,fsbno) |
| #else |
| #define XFS_FSB_TO_DADDR(mp,fsbno) \ |
| XFS_AGB_TO_DADDR(mp, XFS_FSB_TO_AGNO(mp,fsbno), \ |
| XFS_FSB_TO_AGBNO(mp,fsbno)) |
| #endif |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_SBP) |
| xfs_sb_t *xfs_buf_to_sbp(struct xfs_buf *bp); |
| #define XFS_BUF_TO_SBP(bp) xfs_buf_to_sbp(bp) |
| #else |
| #define XFS_BUF_TO_SBP(bp) ((xfs_sb_t *)XFS_BUF_PTR(bp)) |
| #endif |
| |
| /* |
| * 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__ */ |
