diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_rtbitmap.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_rtbitmap.h | 114 |
1 files changed, 97 insertions, 17 deletions
diff --git a/fs/xfs/libxfs/xfs_rtbitmap.h b/fs/xfs/libxfs/xfs_rtbitmap.h index b2b9e59a87a2..16563a44bd13 100644 --- a/fs/xfs/libxfs/xfs_rtbitmap.h +++ b/fs/xfs/libxfs/xfs_rtbitmap.h @@ -26,7 +26,7 @@ xfs_rtx_to_rtb( xfs_rtxnum_t rtx) { struct xfs_mount *mp = rtg_mount(rtg); - xfs_rtblock_t start = xfs_rgno_start_rtb(mp, rtg_rgno(rtg)); + xfs_rtblock_t start = xfs_group_start_fsb(rtg_group(rtg)); if (mp->m_rtxblklog >= 0) return start + (rtx << mp->m_rtxblklog); @@ -101,17 +101,38 @@ xfs_blen_to_rtbxlen( return div_u64(blen, mp->m_sb.sb_rextsize); } +/* Return the offset of a file block length within an rt extent. */ +static inline xfs_extlen_t +xfs_blen_to_rtxoff( + struct xfs_mount *mp, + xfs_filblks_t blen) +{ + if (likely(mp->m_rtxblklog >= 0)) + return blen & mp->m_rtxblkmask; + + return do_div(blen, mp->m_sb.sb_rextsize); +} + +/* Round this block count up to the nearest rt extent size. */ +static inline xfs_filblks_t +xfs_blen_roundup_rtx( + struct xfs_mount *mp, + xfs_filblks_t blen) +{ + return roundup_64(blen, mp->m_sb.sb_rextsize); +} + /* Convert an rt block number into an rt extent number. */ static inline xfs_rtxnum_t xfs_rtb_to_rtx( struct xfs_mount *mp, xfs_rtblock_t rtbno) { - uint64_t __rgbno = __xfs_rtb_to_rgbno(mp, rtbno); - + /* open-coded 64-bit masking operation */ + rtbno &= mp->m_groups[XG_TYPE_RTG].blkmask; if (likely(mp->m_rtxblklog >= 0)) - return __rgbno >> mp->m_rtxblklog; - return div_u64(__rgbno, mp->m_sb.sb_rextsize); + return rtbno >> mp->m_rtxblklog; + return div_u64(rtbno, mp->m_sb.sb_rextsize); } /* Return the offset of an rt block number within an rt extent. */ @@ -120,28 +141,29 @@ xfs_rtb_to_rtxoff( struct xfs_mount *mp, xfs_rtblock_t rtbno) { + /* open-coded 64-bit masking operation */ + rtbno &= mp->m_groups[XG_TYPE_RTG].blkmask; if (likely(mp->m_rtxblklog >= 0)) return rtbno & mp->m_rtxblkmask; - return do_div(rtbno, mp->m_sb.sb_rextsize); } -/* Round this rtblock up to the nearest rt extent size. */ +/* Round this file block offset up to the nearest rt extent size. */ static inline xfs_rtblock_t -xfs_rtb_roundup_rtx( +xfs_fileoff_roundup_rtx( struct xfs_mount *mp, - xfs_rtblock_t rtbno) + xfs_fileoff_t off) { - return roundup_64(rtbno, mp->m_sb.sb_rextsize); + return roundup_64(off, mp->m_sb.sb_rextsize); } -/* Round this rtblock down to the nearest rt extent size. */ +/* Round this file block offset down to the nearest rt extent size. */ static inline xfs_rtblock_t -xfs_rtb_rounddown_rtx( +xfs_fileoff_rounddown_rtx( struct xfs_mount *mp, - xfs_rtblock_t rtbno) + xfs_fileoff_t off) { - return rounddown_64(rtbno, mp->m_sb.sb_rextsize); + return rounddown_64(off, mp->m_sb.sb_rextsize); } /* Convert an rt extent number to a file block offset in the rt bitmap file. */ @@ -150,6 +172,9 @@ xfs_rtx_to_rbmblock( struct xfs_mount *mp, xfs_rtxnum_t rtx) { + if (xfs_has_rtgroups(mp)) + return div_u64(rtx, mp->m_rtx_per_rbmblock); + return rtx >> mp->m_blkbit_log; } @@ -159,6 +184,13 @@ xfs_rtx_to_rbmword( struct xfs_mount *mp, xfs_rtxnum_t rtx) { + if (xfs_has_rtgroups(mp)) { + unsigned int mod; + + div_u64_rem(rtx >> XFS_NBWORDLOG, mp->m_blockwsize, &mod); + return mod; + } + return (rtx >> XFS_NBWORDLOG) & (mp->m_blockwsize - 1); } @@ -168,6 +200,9 @@ xfs_rbmblock_to_rtx( struct xfs_mount *mp, xfs_fileoff_t rbmoff) { + if (xfs_has_rtgroups(mp)) + return rbmoff * mp->m_rtx_per_rbmblock; + return rbmoff << mp->m_blkbit_log; } @@ -177,7 +212,14 @@ xfs_rbmblock_wordptr( struct xfs_rtalloc_args *args, unsigned int index) { - union xfs_rtword_raw *words = args->rbmbp->b_addr; + struct xfs_mount *mp = args->mp; + union xfs_rtword_raw *words; + struct xfs_rtbuf_blkinfo *hdr = args->rbmbp->b_addr; + + if (xfs_has_rtgroups(mp)) + words = (union xfs_rtword_raw *)(hdr + 1); + else + words = args->rbmbp->b_addr; return words + index; } @@ -190,6 +232,8 @@ xfs_rtbitmap_getword( { union xfs_rtword_raw *word = xfs_rbmblock_wordptr(args, index); + if (xfs_has_rtgroups(args->mp)) + return be32_to_cpu(word->rtg); return word->old; } @@ -202,7 +246,10 @@ xfs_rtbitmap_setword( { union xfs_rtword_raw *word = xfs_rbmblock_wordptr(args, index); - word->old = value; + if (xfs_has_rtgroups(args->mp)) + word->rtg = cpu_to_be32(value); + else + word->old = value; } /* @@ -227,6 +274,9 @@ xfs_rtsumoffs_to_block( struct xfs_mount *mp, xfs_rtsumoff_t rsumoff) { + if (xfs_has_rtgroups(mp)) + return rsumoff / mp->m_blockwsize; + return XFS_B_TO_FSBT(mp, rsumoff * sizeof(xfs_suminfo_t)); } @@ -241,6 +291,9 @@ xfs_rtsumoffs_to_infoword( { unsigned int mask = mp->m_blockmask >> XFS_SUMINFOLOG; + if (xfs_has_rtgroups(mp)) + return rsumoff % mp->m_blockwsize; + return rsumoff & mask; } @@ -250,7 +303,13 @@ xfs_rsumblock_infoptr( struct xfs_rtalloc_args *args, unsigned int index) { - union xfs_suminfo_raw *info = args->sumbp->b_addr; + union xfs_suminfo_raw *info; + struct xfs_rtbuf_blkinfo *hdr = args->sumbp->b_addr; + + if (xfs_has_rtgroups(args->mp)) + info = (union xfs_suminfo_raw *)(hdr + 1); + else + info = args->sumbp->b_addr; return info + index; } @@ -263,6 +322,8 @@ xfs_suminfo_get( { union xfs_suminfo_raw *info = xfs_rsumblock_infoptr(args, index); + if (xfs_has_rtgroups(args->mp)) + return be32_to_cpu(info->rtg); return info->old; } @@ -275,10 +336,28 @@ xfs_suminfo_add( { union xfs_suminfo_raw *info = xfs_rsumblock_infoptr(args, index); + if (xfs_has_rtgroups(args->mp)) { + be32_add_cpu(&info->rtg, delta); + return be32_to_cpu(info->rtg); + } + info->old += delta; return info->old; } +static inline const struct xfs_buf_ops * +xfs_rtblock_ops( + struct xfs_mount *mp, + enum xfs_rtg_inodes type) +{ + if (xfs_has_rtgroups(mp)) { + if (type == XFS_RTGI_SUMMARY) + return &xfs_rtsummary_buf_ops; + return &xfs_rtbitmap_buf_ops; + } + return &xfs_rtbuf_ops; +} + /* * Functions for walking free space rtextents in the realtime bitmap. */ @@ -324,6 +403,7 @@ int xfs_rtfree_extent(struct xfs_trans *tp, struct xfs_rtgroup *rtg, int xfs_rtfree_blocks(struct xfs_trans *tp, struct xfs_rtgroup *rtg, xfs_fsblock_t rtbno, xfs_filblks_t rtlen); +xfs_rtxnum_t xfs_rtbitmap_rtx_per_rbmblock(struct xfs_mount *mp); xfs_filblks_t xfs_rtbitmap_blockcount(struct xfs_mount *mp); xfs_filblks_t xfs_rtbitmap_blockcount_len(struct xfs_mount *mp, xfs_rtbxlen_t rtextents); |