diff options
| -rw-r--r-- | fs/xfs/xfs_bmap.c | 373 | ||||
| -rw-r--r-- | fs/xfs/xfs_bmap.h | 7 | ||||
| -rw-r--r-- | fs/xfs/xfs_dinode.h | 11 | ||||
| -rw-r--r-- | fs/xfs/xfs_fs.h | 2 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode.c | 16 | ||||
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 390 | ||||
| -rw-r--r-- | fs/xfs/xfs_vnodeops.c | 158 |
7 files changed, 547 insertions, 410 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index e415a4698e9..8a32d65211b 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -2146,13 +2146,176 @@ xfs_bmap_add_extent_hole_real( return 0; /* keep gcc quite */ } +/* + * Adjust the size of the new extent based on di_extsize and rt extsize. + */ +STATIC int +xfs_bmap_extsize_align( + xfs_mount_t *mp, + xfs_bmbt_irec_t *gotp, /* next extent pointer */ + xfs_bmbt_irec_t *prevp, /* previous extent pointer */ + xfs_extlen_t extsz, /* align to this extent size */ + int rt, /* is this a realtime inode? */ + int eof, /* is extent at end-of-file? */ + int delay, /* creating delalloc extent? */ + int convert, /* overwriting unwritten extent? */ + xfs_fileoff_t *offp, /* in/out: aligned offset */ + xfs_extlen_t *lenp) /* in/out: aligned length */ +{ + xfs_fileoff_t orig_off; /* original offset */ + xfs_extlen_t orig_alen; /* original length */ + xfs_fileoff_t orig_end; /* original off+len */ + xfs_fileoff_t nexto; /* next file offset */ + xfs_fileoff_t prevo; /* previous file offset */ + xfs_fileoff_t align_off; /* temp for offset */ + xfs_extlen_t align_alen; /* temp for length */ + xfs_extlen_t temp; /* temp for calculations */ + + if (convert) + return 0; + + orig_off = align_off = *offp; + orig_alen = align_alen = *lenp; + orig_end = orig_off + orig_alen; + + /* + * If this request overlaps an existing extent, then don't + * attempt to perform any additional alignment. + */ + if (!delay && !eof && + (orig_off >= gotp->br_startoff) && + (orig_end <= gotp->br_startoff + gotp->br_blockcount)) { + return 0; + } + + /* + * If the file offset is unaligned vs. the extent size + * we need to align it. This will be possible unless + * the file was previously written with a kernel that didn't + * perform this alignment, or if a truncate shot us in the + * foot. + */ + temp = do_mod(orig_off, extsz); + if (temp) { + align_alen += temp; + align_off -= temp; + } + /* + * Same adjustment for the end of the requested area. + */ + if ((temp = (align_alen % extsz))) { + align_alen += extsz - temp; + } + /* + * If the previous block overlaps with this proposed allocation + * then move the start forward without adjusting the length. + */ + if (prevp->br_startoff != NULLFILEOFF) { + if (prevp->br_startblock == HOLESTARTBLOCK) + prevo = prevp->br_startoff; + else + prevo = prevp->br_startoff + prevp->br_blockcount; + } else + prevo = 0; + if (align_off != orig_off && align_off < prevo) + align_off = prevo; + /* + * If the next block overlaps with this proposed allocation + * then move the start back without adjusting the length, + * but not before offset 0. + * This may of course make the start overlap previous block, + * and if we hit the offset 0 limit then the next block + * can still overlap too. + */ + if (!eof && gotp->br_startoff != NULLFILEOFF) { + if ((delay && gotp->br_startblock == HOLESTARTBLOCK) || + (!delay && gotp->br_startblock == DELAYSTARTBLOCK)) + nexto = gotp->br_startoff + gotp->br_blockcount; + else + nexto = gotp->br_startoff; + } else + nexto = NULLFILEOFF; + if (!eof && + align_off + align_alen != orig_end && + align_off + align_alen > nexto) + align_off = nexto > align_alen ? nexto - align_alen : 0; + /* + * If we're now overlapping the next or previous extent that + * means we can't fit an extsz piece in this hole. Just move + * the start forward to the first valid spot and set + * the length so we hit the end. + */ + if (align_off != orig_off && align_off < prevo) + align_off = prevo; + if (align_off + align_alen != orig_end && + align_off + align_alen > nexto && + nexto != NULLFILEOFF) { + ASSERT(nexto > prevo); + align_alen = nexto - align_off; + } + + /* + * If realtime, and the result isn't a multiple of the realtime + * extent size we need to remove blocks until it is. + */ + if (rt && (temp = (align_alen % mp->m_sb.sb_rextsize))) { + /* + * We're not covering the original request, or + * we won't be able to once we fix the length. + */ + if (orig_off < align_off || + orig_end > align_off + align_alen || + align_alen - temp < orig_alen) + return XFS_ERROR(EINVAL); + /* + * Try to fix it by moving the start up. + */ + if (align_off + temp <= orig_off) { + align_alen -= temp; + align_off += temp; + } + /* + * Try to fix it by moving the end in. + */ + else if (align_off + align_alen - temp >= orig_end) + align_alen -= temp; + /* + * Set the start to the minimum then trim the length. + */ + else { + align_alen -= orig_off - align_off; + align_off = orig_off; + align_alen -= align_alen % mp->m_sb.sb_rextsize; + } + /* + * Result doesn't cover the request, fail it. + */ + if (orig_off < align_off || orig_end > align_off + align_alen) + return XFS_ERROR(EINVAL); + } else { + ASSERT(orig_off >= align_off); + ASSERT(orig_end <= align_off + align_alen); + } + +#ifdef DEBUG + if (!eof && gotp->br_startoff != NULLFILEOFF) + ASSERT(align_off + align_alen <= gotp->br_startoff); + if (prevp->br_startoff != NULLFILEOFF) + ASSERT(align_off >= prevp->br_startoff + prevp->br_blockcount); +#endif + + *lenp = align_alen; + *offp = align_off; + return 0; +} + #define XFS_ALLOC_GAP_UNITS 4 /* * xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file. * It figures out where to ask the underlying allocator to put the new extent. */ -STATIC int /* error */ +STATIC int xfs_bmap_alloc( xfs_bmalloca_t *ap) /* bmap alloc argument struct */ { @@ -2163,10 +2326,10 @@ xfs_bmap_alloc( xfs_mount_t *mp; /* mount point structure */ int nullfb; /* true if ap->firstblock isn't set */ int rt; /* true if inode is realtime */ -#ifdef __KERNEL__ - xfs_extlen_t prod=0; /* product factor for allocators */ - xfs_extlen_t ralen=0; /* realtime allocation length */ -#endif + xfs_extlen_t prod = 0; /* product factor for allocators */ + xfs_extlen_t ralen = 0; /* realtime allocation length */ + xfs_extlen_t align; /* minimum allocation alignment */ + xfs_rtblock_t rtx; #define ISVALID(x,y) \ (rt ? \ @@ -2182,125 +2345,25 @@ xfs_bmap_alloc( nullfb = ap->firstblock == NULLFSBLOCK; rt = XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata; fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, ap->firstblock); -#ifdef __KERNEL__ if (rt) { - xfs_extlen_t extsz; /* file extent size for rt */ - xfs_fileoff_t nexto; /* next file offset */ - xfs_extlen_t orig_alen; /* original ap->alen */ - xfs_fileoff_t orig_end; /* original off+len */ - xfs_fileoff_t orig_off; /* original ap->off */ - xfs_extlen_t mod_off; /* modulus calculations */ - xfs_fileoff_t prevo; /* previous file offset */ - xfs_rtblock_t rtx; /* realtime extent number */ - xfs_extlen_t temp; /* temp for rt calculations */ - - /* - * Set prod to match the realtime extent size. - */ - if (!(extsz = ap->ip->i_d.di_extsize)) - extsz = mp->m_sb.sb_rextsize; - prod = extsz / mp->m_sb.sb_rextsize; - orig_off = ap->off; - orig_alen = ap->alen; - orig_end = orig_off + orig_alen; - /* - * If the file offset is unaligned vs. the extent size - * we need to align it. This will be possible unless - * the file was previously written with a kernel that didn't - * perform this alignment. - */ - mod_off = do_mod(orig_off, extsz); - if (mod_off) { - ap->alen += mod_off; - ap->off -= mod_off; - } - /* - * Same adjustment for the end of the requested area. - */ - if ((temp = (ap->alen % extsz))) - ap->alen += extsz - temp; - /* - * If the previous block overlaps with this proposed allocation - * then move the start forward without adjusting the length. - */ - prevo = - ap->prevp->br_startoff == NULLFILEOFF ? - 0 : - (ap->prevp->br_startoff + - ap->prevp->br_blockcount); - if (ap->off != orig_off && ap->off < prevo) - ap->off = prevo; - /* - * If the next block overlaps with this proposed allocation - * then move the start back without adjusting the length, - * but not before offset 0. - * This may of course make the start overlap previous block, - * and if we hit the offset 0 limit then the next block - * can still overlap too. - */ - nexto = (ap->eof || ap->gotp->br_startoff == NULLFILEOFF) ? - NULLFILEOFF : ap->gotp->br_startoff; - if (!ap->eof && - ap->off + ap->alen != orig_end && - ap->off + ap->alen > nexto) - ap->off = nexto > ap->alen ? nexto - ap->alen : 0; - /* - * If we're now overlapping the next or previous extent that - * means we can't fit an extsz piece in this hole. Just move - * the start forward to the first valid spot and set - * the length so we hit the end. - */ - if ((ap->off != orig_off && ap->off < prevo) || - (ap->off + ap->alen != orig_end && - ap->off + ap->alen > nexto)) { - ap->off = prevo; - ap->alen = nexto - prevo; - } - /* - * If the result isn't a multiple of rtextents we need to - * remove blocks until it is. - */ - if ((temp = (ap->alen % mp->m_sb.sb_rextsize))) { - /* - * We're not covering the original request, or - * we won't be able to once we fix the length. - */ - if (orig_off < ap->off || - orig_end > ap->off + ap->alen || - ap->alen - temp < orig_alen) - return XFS_ERROR(EINVAL); - /* - * Try to fix it by moving the start up. - */ - if (ap->off + temp <= orig_off) { - ap->alen -= temp; - ap->off += temp; - } - /* - * Try to fix it by moving the end in. - */ - else if (ap->off + ap->alen - temp >= orig_end) - ap->alen -= temp; - /* - * Set the start to the minimum then trim the length. - */ - else { - ap->alen -= orig_off - ap->off; - ap->off = orig_off; - ap->alen -= ap->alen % mp->m_sb.sb_rextsize; - } - /* - * Result doesn't cover the request, fail it. - */ - if (orig_off < ap->off || orig_end > ap->off + ap->alen) - return XFS_ERROR(EINVAL); - } + align = ap->ip->i_d.di_extsize ? + ap->ip->i_d.di_extsize : mp->m_sb.sb_rextsize; + /* Set prod to match the extent size */ + prod = align / mp->m_sb.sb_rextsize; + + error = xfs_bmap_extsize_align(mp, ap->gotp, ap->prevp, + align, rt, ap->eof, 0, + ap->conv, &ap->off, &ap->alen); + if (error) + return error; + ASSERT(ap->alen); ASSERT(ap->alen % mp->m_sb.sb_rextsize == 0); + /* * If the offset & length are not perfectly aligned * then kill prod, it will just get us in trouble. */ - if (do_mod(ap->off, extsz) || ap->alen % extsz) + if (do_mod(ap->off, align) || ap->alen % align) prod = 1; /* * Set ralen to be the actual requested length in rtextents. @@ -2326,15 +2389,24 @@ xfs_bmap_alloc( ap->rval = rtx * mp->m_sb.sb_rextsize; } else ap->rval = 0; + } else { + align = (ap->userdata && ap->ip->i_d.di_extsize && + (ap->ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)) ? + ap->ip->i_d.di_extsize : 0; + if (unlikely(align)) { + error = xfs_bmap_extsize_align(mp, ap->gotp, ap->prevp, + align, rt, + ap->eof, 0, ap->conv, + &ap->off, &ap->alen); + ASSERT(!error); + ASSERT(ap->alen); + } + if (nullfb) + ap->rval = XFS_INO_TO_FSB(mp, ap->ip->i_ino); + else + ap->rval = ap->firstblock; } -#else - if (rt) - ap->rval = 0; -#endif /* __KERNEL__ */ - else if (nullfb) - ap->rval = XFS_INO_TO_FSB(mp, ap->ip->i_ino); - else - ap->rval = ap->firstblock; + /* * If allocating at eof, and there's a previous real block, * try to use it's last block as our starting point. @@ -2598,11 +2670,12 @@ xfs_bmap_alloc( args.total = ap->total; args.minlen = ap->minlen; } - if (ap->ip->i_d.di_extsize) { + if (unlikely(ap->userdata && ap->ip->i_d.di_extsize && + (ap->ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE))) { args.prod = ap->ip->i_d.di_extsize; if ((args.mod = (xfs_extlen_t)do_mod(ap->off, args.prod))) args.mod = (xfs_extlen_t)(args.prod - args.mod); - } else if (mp->m_sb.sb_blocksize >= NBPP) { + } else if (unlikely(mp->m_sb.sb_blocksize >= NBPP)) { args.prod = 1; args.mod = 0; } else { @@ -4590,6 +4663,7 @@ xfs_bmapi( char contig; /* allocation must be one extent */ char delay; /* this request is for delayed alloc */ char exact; /* don't do all of wasdelayed extent */ + char convert; /* unwritten extent I/O completion */ xfs_bmbt_rec_t *ep; /* extent list entry pointer */ int error; /* error return */ xfs_bmbt_irec_t got; /* current extent list record */ @@ -4643,7 +4717,7 @@ xfs_bmapi( } if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - rt = XFS_IS_REALTIME_INODE(ip); + rt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip); ifp = XFS_IFORK_PTR(ip, whichfork); ASSERT(ifp->if_ext_max == XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t)); @@ -4654,6 +4728,7 @@ xfs_bmapi( delay = (flags & XFS_BMAPI_DELAY) != 0; trim = (flags & XFS_BMAPI_ENTIRE) == 0; userdata = (flags & XFS_BMAPI_METADATA) == 0; + convert = (flags & XFS_BMAPI_CONVERT) != 0; exact = (flags & XFS_BMAPI_EXACT) != 0; rsvd = (flags & XFS_BMAPI_RSVBLOCKS) != 0; contig = (flags & XFS_BMAPI_CONTIG) != 0; @@ -4748,16 +4823,26 @@ xfs_bmapi( } minlen = contig ? alen : 1; if (delay) { - xfs_extlen_t extsz = 0; + xfs_extlen_t extsz; /* Figure out the extent size, adjust alen */ if (rt) { if (!(extsz = ip->i_d.di_extsize)) extsz = mp->m_sb.sb_rextsize; - alen = roundup(alen, extsz); - extsz = alen / mp->m_sb.sb_rextsize; + } else { + extsz = ip->i_d.di_extsize; + } + if (extsz) { + error = xfs_bmap_extsize_align(mp, + &got, &prev, extsz, + rt, eof, delay, convert, + &aoff, &alen); + ASSERT(!error); } + if (rt) + extsz = alen / mp->m_sb.sb_rextsize; + /* * Make a transaction-less quota reservation for * delayed allocation blocks. This number gets @@ -4785,14 +4870,15 @@ xfs_bmapi( xfs_bmap_worst_indlen(ip, alen); ASSERT(indlen > 0); - if (rt) + if (rt) { error = xfs_mod_incore_sb(mp, XFS_SBS_FREXTENTS, -(extsz), rsvd); - else + } else { error = xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, -(alen), rsvd); + } if (!error) { error = xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, @@ -4811,6 +4897,7 @@ xfs_bmapi( if (error) { if (XFS_IS_QUOTA_ON(ip->i_mount)) /* unreserve the blocks now */ + (void) XFS_TRANS_UNRESERVE_QUOTA_NBLKS( mp, NULL, ip, (long)alen, 0, rt ? @@ -4849,6 +4936,7 @@ xfs_bmapi( bma.firstblock = *firstblock; bma.alen = alen; bma.off = aoff; + bma.conv = convert; bma.wasdel = wasdelay; bma.minlen = minlen; bma.low = flist->xbf_low; @@ -5270,8 +5358,7 @@ xfs_bunmapi( return 0; } XFS_STATS_INC(xs_blk_unmap); - isrt = (whichfork == XFS_DATA_FORK) && - (ip->i_d.di_flags & XFS_DIFLAG_REALTIME); + isrt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip); start = bno; bno = start + len - 1; ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got, @@ -5443,7 +5530,7 @@ xfs_bunmapi( } if (wasdel) { ASSERT(STARTBLOCKVAL(del.br_startblock) > 0); - /* Update realtim/data freespace, unreserve quota */ + /* Update realtime/data freespace, unreserve quota */ if (isrt) { xfs_filblks_t rtexts; @@ -5451,14 +5538,14 @@ xfs_bunmapi( do_div(rtexts, mp->m_sb.sb_rextsize); xfs_mod_incore_sb(mp, XFS_SBS_FREXTENTS, (int)rtexts, rsvd); - XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip, - -((long)del.br_blockcount), 0, + (void)XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, + NULL, ip, -((long)del.br_blockcount), 0, XFS_QMOPT_RES_RTBLKS); } else { xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int)del.br_blockcount, rsvd); - XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip, - -((long)del.br_blockcount), 0, + (void)XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, + NULL, ip, -((long)del.br_blockcount), 0, XFS_QMOPT_RES_REGBLKS); } ip->i_delayed_blks -= del.br_blockcount; @@ -5652,7 +5739,9 @@ xfs_getbmap( ip->i_d.di_format != XFS_DINODE_FMT_LOCAL) return XFS_ERROR(EINVAL); if (whichfork == XFS_DATA_FORK) { - if (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC) { + if ((ip->i_d.di_extsize && (ip->i_d.di_flags & + (XFS_DIFLAG_REALTIME|XFS_DIFLAG_EXTSIZE))) || + ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)){ prealloced = 1; fixlen = XFS_MAXIOFFSET(mp); } else { diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index 2e0717a0130..12cc63dfc2c 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -62,6 +62,10 @@ typedef struct xfs_bmap_free #define XFS_BMAPI_IGSTATE 0x200 /* Ignore state - */ /* combine contig. space */ #define XFS_BMAPI_CONTIG 0x400 /* must allocate only one extent */ +/* XFS_BMAPI_DIRECT_IO 0x800 */ +#define XFS_BMAPI_CONVERT 0x1000 /* unwritten extent conversion - */ + /* need write cache flushing and no */ + /* additional allocation alignments */ #define XFS_BMAPI_AFLAG(w) xfs_bmapi_aflag(w) static inline int xfs_bmapi_aflag(int w) @@ -101,7 +105,8 @@ typedef struct xfs_bmalloca { char wasdel; /* replacing a delayed allocation */ char userdata;/* set if is user data */ char low; /* low on space, using seq'l ags */ - char aeof; /* allocated space at eof */ + char aeof; /* allocated space at eof */ + char conv; /* overwriting unwritten extents */ } xfs_bmalloca_t; #ifdef __KERNEL__ diff --git a/fs/xfs/xfs_dinode.h b/fs/xfs/xfs_dinode.h index c5a0e537ff1..f697aab8a3d 100644 --- a/fs/xfs/xfs_dinode.h +++ b/fs/xfs/xfs_dinode.h @@ -246,8 +246,10 @@ typedef enum xfs_dinode_fmt #define XFS_DIFLAG_NOATIME_BIT 6 /* do not update atime */ #define XFS_DIFLAG_NODUMP_BIT 7 /* do not dump */ #define XFS_DIFLAG_RTINHERIT_BIT 8 /* create with realtime bit set */ -#define XFS_DIFLAG_PROJINHERIT_BIT 9 /* create with parents projid */ -#define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */ +#define XFS_DIFLAG_PROJINHERIT_BIT 9 /* create with parents projid */ +#define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */ +#define XFS_DIFLAG_EXTSIZE_BIT 11 /* inode extent size allocator hint */ +#define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */ #define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT) #define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT) #define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT) @@ -259,11 +261,14 @@ typedef enum xfs_dinode_fmt #define XFS_DIFLAG_RTINHERIT (1 << XFS_DIFLAG_RTINHERIT_BIT) #define XFS_DIFLAG_PROJINHERIT (1 << XFS_DIFLAG_PROJINHERIT_BIT) #define XFS_DIFLAG_NOSYMLINKS (1 << XFS_DIFLAG_NOSYMLINKS_BIT) +#define XFS_DIFLAG_EXTSIZE (1 << XFS_DIFLAG_EXTSIZE_BIT) +#define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_BIT) #define XFS_DIFLAG_ANY \ (XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \ XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \ XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \ - XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS) + XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \ + XFS_DIFLAG_EXTSZINHERIT) #endif /* __XFS_DINODE_H__ */ diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index ba096f80f48..3280f49496b 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -65,6 +65,8 @@ struct fsxattr { #define XFS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */ #define XFS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */ #define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */ +#define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */ +#define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */ #define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */ /* diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index df0d4572d70..e486c7d244c 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -809,6 +809,10 @@ _xfs_dic2xflags( flags |= XFS_XFLAG_PROJINHERIT; if (di_flags & XFS_DIFLAG_NOSYMLINKS) flags |= XFS_XFLAG_NOSYMLINKS; + if (di_flags & XFS_DIFLAG_EXTSIZE) + flags |= XFS_XFLAG_EXTSIZE; + if (di_flags & XFS_DIFLAG_EXTSZINHERIT) + flags |= XFS_XFLAG_EXTSZINHERIT; } return flags; @@ -1192,11 +1196,19 @@ xfs_ialloc( if ((mode & S_IFMT) == S_IFDIR) { if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT) di_flags |= XFS_DIFLAG_RTINHERIT; - } else { + if (pip->i_d.di_flags & XFS_DIFLAG_EXTSZINHERIT) { + di_flags |= XFS_DIFLAG_EXTSZINHERIT; + ip->i_d.di_extsize = pip->i_d.di_extsize; + } + } else if ((mode & S_IFMT) == S_IFREG) { if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT) { di_flags |= XFS_DIFLAG_REALTIME; ip->i_iocore.io_flags |= XFS_IOCORE_RT; } + if (pip->i_d.di_flags & XFS_DIFLAG_EXTSZINHERIT) { + di_flags |= XFS_DIFLAG_EXTSIZE; + ip->i_d.di_extsize = pip->i_d.di_extsize; + } } if ((pip->i_d.di_flags & XFS_DIFLAG_NOATIME) && xfs_inherit_noatime) @@ -1262,7 +1274,7 @@ xfs_isize_check( if ((ip->i_d.di_mode & S_IFMT) != S_IFREG) return; - if ( ip->i_d.di_flags & XFS_DIFLAG_REALTIME ) + if (ip->i_d.di_flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_EXTSIZE)) return; nimaps = 2; diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 45a77a3a6c0..5ecf3e3e86a 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -263,7 +263,7 @@ phase2: case BMAPI_WRITE: /* If we found an extent, return it */ if (nimaps && - (imap.br_startblock != HOLESTARTBLOCK) && + (imap.br_startblock != HOLESTARTBLOCK) && (imap.br_startblock != DELAYSTARTBLOCK)) { xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, io, offset, count, iomapp, &imap, flags); @@ -318,6 +318,58 @@ out: } STATIC int +xfs_iomap_eof_align_last_fsb( + xfs_mount_t *mp, + xfs_iocore_t *io, + xfs_fsize_t isize, + xfs_extlen_t extsize, + xfs_fileoff_t *last_fsb) +{ + xfs_fileoff_t new_last_fsb = 0; + xfs_extlen_t align; + int eof, error; + + if (io->io_flags & XFS_IOCORE_RT) + ; + /* + * If mounted with the "-o swalloc" option, roundup the allocation + * request to a stripe width boundary if the file size is >= + * stripe width and we are allocating past the allocation eof. + */ + else if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC) && + (isize >= XFS_FSB_TO_B(mp, mp->m_swidth))) + new_last_fsb = roundup_64(*last_fsb, mp->m_swidth); + /* + * Roundup the allocation request to a stripe unit (m_dalign) boundary + * if the file size is >= stripe unit size, and we are allocating past + * the allocation eof. + */ + else if (mp->m_dalign && (isize >= XFS_FSB_TO_B(mp, mp->m_dalign))) + new_last_fsb = roundup_64(*last_fsb, mp->m_dalign); + + /* + * Always round up the allocation request to an extent boundary + * (when file on a real-time subvolume or has di_extsize hint). + */ + if (extsize) { + if (new_last_fsb) + align = roundup_64(new_last_fsb, extsize); + else + align = extsize; + new_last_fsb = roundup_64(*last_fsb, align); + } + + if (new_last_fsb) { + error = XFS_BMAP_EOF(mp, io, new_last_fsb, XFS_DATA_FORK, &eof); + if (error) + return error; + if (eof) + *last_fsb = new_last_fsb; + } + return 0; +} + +STATIC int xfs_flush_space( xfs_inode_t *ip, int *fsynced, @@ -363,19 +415,20 @@ xfs_iomap_write_direct( xfs_iocore_t *io = &ip->i_iocore; xfs_fileoff_t offset_fsb; xfs_fileoff_t last_fsb; - xfs_filblks_t count_fsb; + xfs_filblks_t count_fsb, resaligned; xfs_fsblock_t firstfsb; + xfs_extlen_t extsz, temp; + xfs_fsize_t isize; int nimaps; - int error; int bmapi_flag; int quota_flag; int rt; xfs_trans_t *tp; xfs_bmbt_irec_t imap; xfs_bmap_free_t free_list; - xfs_filblks_t qblocks, resblks; + uint qblocks, resblks, resrtextents; int committed; - int resrtextents; + int error; /* * Make sure that the dquots are there. This doesn't hold @@ -385,37 +438,52 @@ xfs_iomap_write_direct( if (error) return XFS_ERROR(error); - offset_fsb = XFS_B_TO_FSBT(mp, offset); - last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); - count_fsb = last_fsb - offset_fsb; - if (found && (ret_imap->br_startblock == HOLESTARTBLOCK)) { - xfs_fileoff_t map_last_fsb; - - map_last_fsb = ret_imap->br_blockcount + ret_imap->br_startoff; - if (map_last_fsb < last_fsb) { - last_fsb = map_last_fsb; - count_fsb = last_fsb - offset_fsb; - } - ASSERT(count_fsb > 0); + rt = XFS_IS_REALTIME_INODE(ip); + if (unlikely(rt)) { + if (!(extsz = ip->i_d.di_extsize)) + extsz = mp->m_sb.sb_rextsize; + } else { + extsz = ip->i_d.di_extsize; } - /* - * Determine if reserving space on the data or realtime partition. - */ - if ((rt = XFS_IS_REALTIME_INODE(ip))) { - xfs_extlen_t extsz; + isize = ip->i_d.di_size; + if (io->io_new_size > isize) + isize = io->io_new_size; - if (!(extsz = ip->i_d.di_extsize)) - extsz = mp->m_sb.sb_rextsize; - resrtextents = qblocks = (count_fsb + extsz - 1); - do_div(resrtextents, mp->m_sb.sb_rextsize); - resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0); - quota_flag = XFS_QMOPT_RES_RTBLKS; + offset_fsb = XFS_B_TO_FSBT(mp, offset); + last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); + if ((offset + count) > isize) { + error = xfs_iomap_eof_align_last_fsb(mp, io, isize, extsz, + &last_fsb); + if (error) + goto error_out; } else { - resrtextents = 0; - resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, count_fsb); - quota_flag = XFS_QMOPT_RES_REGBLKS; + if (found && (ret_imap->br_startblock == HOLESTARTBLOCK)) + last_fsb = MIN(last_fsb, (xfs_fileoff_t) + ret_imap->br_blockcount + + ret_imap->br_startoff); } + count_fsb = last_fsb - offset_fsb; + ASSERT(count_fsb > 0); + + resaligned = count_fsb; + if (unlikely(extsz)) { + if ((temp = do_mod(offset_fsb, extsz))) + resaligned += temp; + if ((temp = do_mod(resaligned, extsz))) + resaligned += extsz - temp; + } + + if (unlikely(rt)) { + resrtextents = qblocks = resaligned; + resrtextents /= mp->m_sb.sb_rextsize; + resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0); + quota_flag = XFS_QMOPT_RES_RTBLKS; + } else { + resrtextents = 0; + resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned); + quota_flag = XFS_QMOPT_RES_REGBLKS; + } /* * Allocate and setup the transaction @@ -426,7 +494,6 @@ xfs_iomap_write_direct( XFS_WRITE_LOG_RES(mp), resrtextents, XFS_TRANS_PERM_LOG_RES, XFS_WRITE_LOG_COUNT); - /* * Check for running out of space, note: need lock to return */ @@ -436,20 +503,20 @@ xfs_iomap_write_direct( if (error) goto error_out; - if (XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag)) { - error = (EDQUOT); + error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, + qblocks, 0, quota_flag); + if (error) goto error1; - } - bmapi_flag = XFS_BMAPI_WRITE; xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); xfs_trans_ihold(tp, ip); - if (!(flags & BMAPI_MMAP) && (offset < ip->i_d.di_size || rt)) + bmapi_flag = XFS_BMAPI_WRITE; + if ((flags & BMAPI_DIRECT) && (offset < ip->i_d.di_size || extsz)) bmapi_flag |= XFS_BMAPI_PREALLOC; /* - * Issue the bmapi() call to allocate the blocks + * Issue the xfs_bmapi() call to allocate the blocks */ XFS_BMAP_INIT(&free_list, &firstfsb); nimaps = 1; @@ -501,6 +568,62 @@ error_out: return XFS_ERROR(error); } +/* + * If the caller is doing a write at the end of the file, + * then extend the allocation out to the file system's write + * iosize. We clean up any extra space left over when the + * file is closed in xfs_inactive(). + * + * For sync writes, we are flushing delayed allocate space to + * try to make additional space available for allocation near + * the filesystem full boundary - preallocation hurts in that + * situation, of course. + */ +STATIC int +xfs_iomap_eof_want_preallocate( + xfs_mount_t *mp, + xfs_iocore_t *io, + xfs_fsize_t isize, + xfs_off_t offset, + size_t count, + int ioflag, + xfs_bmbt_irec_t *imap, + int nimaps, + int *prealloc) +{ + xfs_fileoff_t start_fsb; + xfs_filblks_t count_fsb; + xfs_fsblock_t firstblock; + int n, error, imaps; + + *prealloc = 0; + if ((ioflag & BMAPI_SYNC) || (offset + count) <= isize) + return 0; + + /* + * If there are any real blocks past eof, then don't + * do any speculative allocation. + */ + start_fsb = XFS_B_TO_FSBT(mp, ((xfs_ufsize_t)(offset + count - 1))); + count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp)); + while (count_fsb > 0) { + imaps = nimaps; + error = XFS_BMAPI(mp, NULL, io, start_fsb, count_fsb, + 0, &firstblock, 0, imap, &imaps, NULL); + if (error) + return error; + for (n = 0; n < imaps; n++) { + if ((imap[n].br_startblock != HOLESTARTBLOCK) && + (imap[n].br_startblock != DELAYSTARTBLOCK)) + return 0; + start_fsb += imap[n].br_blockcount; + count_fsb -= imap[n].br_blockcount; + } + } + *prealloc = 1; + return 0; +} + int xfs_iomap_write_delay( xfs_inode_t *ip, @@ -514,13 +637,15 @@ xfs_iomap_write_delay( xfs_iocore_t *io = &ip->i_iocore; xfs_fileoff_t offset_fsb; xfs_fileoff_t last_fsb; - xfs_fsize_t isize; + xfs_off_t aligned_offset; + xfs_fileoff_t ioalign; xfs_fsblock_t firstblock; + xfs_extlen_t extsz; + xfs_fsize_t isize; int nimaps; - int error; xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS]; - int aeof; - int fsynced = 0; + int prealloc, fsynced = 0; + int error; ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0); @@ -528,152 +653,57 @@ xfs_iomap_write_delay( * Make sure that the dquots are there. This doesn't hold * the ilock across a disk read. */ - error = XFS_QM_DQATTACH(mp, ip, XFS_QMOPT_ILOCKED); if (error) return XFS_ERROR(error); + if (XFS_IS_REALTIME_INODE(ip)) { + if (!(extsz = ip->i_d.di_extsize)) + extsz = mp->m_sb.sb_rextsize; + } else { + extsz = ip->i_d.di_extsize; + } + + offset_fsb = XFS_B_TO_FSBT(mp, offset); + retry: isize = ip->i_d.di_size; - if (io->io_new_size > isize) { + if (io->io_new_size > isize) isize = io->io_new_size; - } - aeof = 0; - offset_fsb = XFS_B_TO_FSBT(mp, offset); - last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); - /* - * If the caller is doing a write at the end of the file, - * then extend the allocation (and the buffer used for the write) - * out to the file system's write iosize. We clean up any extra - * space left over when the file is closed in xfs_inactive(). - * - * For sync writes, we are flushing delayed allocate space to - * try to make additional space available for allocation near - * the filesystem full boundary - preallocation hurts in that - * situation, of course. - */ - if (!(ioflag & BMAPI_SYNC) && ((offset + count) > ip->i_d.di_size)) { - xfs_off_t aligned_offset; - xfs_filblks_t count_fsb; - unsigned int iosize; - xfs_fileoff_t ioalign; - int n; - xfs_fileoff_t start_fsb; + error = xfs_iomap_eof_want_preallocate(mp, io, isize, offset, count, + ioflag, imap, XFS_WRITE_IMAPS, &prealloc); + if (error) + return error; - /* - * If there are any real blocks past eof, then don't - * do any speculative allocation. - */ - start_fsb = XFS_B_TO_FSBT(mp, - ((xfs_ufsize_t)(offset + count - 1))); - count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp)); - while (count_fsb > 0) { - nimaps = XFS_WRITE_IMAPS; - error = XFS_BMAPI(mp, NULL, io, start_fsb, count_fsb, - 0, &firstblock, 0, imap, &nimaps, NULL); - if (error) { - return error; - } - for (n = 0; n < nimaps; n++) { - if ( !(io->io_flags & XFS_IOCORE_RT) && - !imap[n].br_startblock) { - cmn_err(CE_PANIC,"Access to block " - "zero: fs <%s> inode: %lld " - "start_block : %llx start_off " - ": %llx blkcnt : %llx " - "extent-state : %x \n", - (ip->i_mount)->m_fsname, - (long long)ip->i_ino, - imap[n].br_startblock, - imap[n].br_startoff, - imap[n].br_blockcount, - imap[n].br_state); - } - if ((imap[n].br_startblock != HOLESTARTBLOCK) && - (imap[n].br_startblock != DELAYSTARTBLOCK)) { - goto write_map; - } - start_fsb += imap[n].br_blockcount; - count_fsb -= imap[n].br_blockcount; - } - } - iosize = mp->m_writeio_blocks; + if (prealloc) { aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1)); ioalign = XFS_B_TO_FSBT(mp, aligned_offset); - last_fsb = ioalign + iosize; - aeof = 1; + last_fsb = ioalign + mp->m_writeio_blocks; + } else { + last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); } -write_map: - nimaps = XFS_WRITE_IMAPS; - firstblock = NULLFSBLOCK; - /* - * If mounted with the "-o swalloc" option, roundup the allocation - * request to a stripe width boundary if the file size is >= - * stripe width and we are allocating past the allocation eof. - */ - if (!(io->io_flags & XFS_IOCORE_RT) && mp->m_swidth - && (mp->m_flags & XFS_MOUNT_SWALLOC) - && (isize >= XFS_FSB_TO_B(mp, mp->m_swidth)) && aeof) { - int eof; - xfs_fileoff_t new_last_fsb; - - new_last_fsb = roundup_64(last_fsb, mp->m_swidth); - error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof); - if (error) { - return error; - } - if (eof) { - last_fsb = new_last_fsb; - } - /* - * Roundup the allocation request to a stripe unit (m_dalign) boundary - * if the file size is >= stripe unit size, and we are allocating past - * the allocation eof. - */ - } else if (!(io->io_flags & XFS_IOCORE_RT) && mp->m_dalign && - (isize >= XFS_FSB_TO_B(mp, mp->m_dalign)) && aeof) { - int eof; - xfs_fileoff_t new_last_fsb; - new_last_fsb = roundup_64(last_fsb, mp->m_dalign); - error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof); - if (error) { - return error; - } - if (eof) { - last_fsb = new_last_fsb; - } - /* - * Round up the allocation request to a real-time extent boundary - * if the file is on the real-time subvolume. - */ - } else if (io->io_flags & XFS_IOCORE_RT && aeof) { - int eof; - xfs_fileoff_t new_last_fsb; - - new_last_fsb = roundup_64(last_fsb, mp->m_sb.sb_rextsize); - error = XFS_BMAP_EOF(mp, io, new_last_fsb, XFS_DATA_FORK, &eof); - if (error) { + if (prealloc || extsz) { + error = xfs_iomap_eof_align_last_fsb(mp, io, isize, extsz, + &last_fsb); + if (error) return error; - } - if (eof) - last_fsb = new_last_fsb; } + + nimaps = XFS_WRITE_IMAPS; + firstblock = NULLFSBLOCK; error = xfs_bmapi(NULL, ip, offset_fsb, (xfs_filblks_t)(last_fsb - offset_fsb), XFS_BMAPI_DELAY | XFS_BMAPI_WRITE | XFS_BMAPI_ENTIRE, &firstblock, 1, imap, &nimaps, NULL); - /* - * This can be EDQUOT, if nimaps == 0 - */ - if (error && (error != ENOSPC)) { + if (error && (error != ENOSPC)) return XFS_ERROR(error); - } + /* * If bmapi returned us nothing, and if we didn't get back EDQUOT, - * then we must have run out of space. + * then we must have run out of space - flush delalloc, and retry.. */ if (nimaps == 0) { xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE, @@ -685,9 +715,7 @@ write_map: goto retry; } - *ret_imap = imap[0]; - *nmaps = 1; - if ( !(io->io_flags & XFS_IOCORE_RT) && !ret_imap->br_startblock) { + if (!(io->io_flags & XFS_IOCORE_RT) && !ret_imap->br_startblock) { cmn_err(CE_PANIC,"Access to block zero: fs <%s> inode: %lld " "start_block : %llx start_off : %llx blkcnt : %llx " "extent-state : %x \n", @@ -696,6 +724,10 @@ write_map: ret_imap->br_startblock, ret_imap->br_startoff, ret_imap->br_blockcount,ret_imap->br_state); } + + *ret_imap = imap[0]; + *nmaps = 1; + return 0; } @@ -868,17 +900,17 @@ xfs_iomap_write_unwritten( { xfs_mount_t *mp = ip->i_mount; xfs_iocore_t *io = &ip->i_iocore; - xfs_trans_t *tp; xfs_fileoff_t offset_fsb; xfs_filblks_t count_fsb; xfs_filblks_t numblks_fsb; - xfs_bmbt_irec_t imap; + xfs_fsblock_t firstfsb; + int nimaps; + xfs_trans_t *tp; + xfs_bmbt_irec_t imap; + xfs_bmap_free_t free_list; + uint resblks; int committed; int error; - int nres; - int nimaps; - xfs_fsblock_t firstfsb; - xfs_bmap_free_t free_list; xfs_iomap_enter_trace(XFS_IOMAP_UNWRITTEN, &ip->i_iocore, offset, count); @@ -887,9 +919,9 @@ xfs_iomap_write_unwritten( count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count); count_fsb = (xfs_filblks_t)(count_fsb - offset_fsb); - do { - nres = XFS_DIOSTRAT_SPACE_RES(mp, 0); + resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0) << 1; + do { /* * set up a transaction to convert the range of extents * from unwritten to real. Do allocations in a loop until @@ -897,7 +929,7 @@ xfs_iomap_write_unwritten( */ tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE); - error = xfs_trans_reserve(tp, nres, + error = xfs_trans_reserve(tp, resblks, XFS_WRITE_LOG_RES(mp), 0, XFS_TRANS_PERM_LOG_RES, XFS_WRITE_LOG_COUNT); @@ -916,7 +948,7 @@ xfs_iomap_write_unwritten( XFS_BMAP_INIT(&free_list, &firstfsb); nimaps = 1; error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, - XFS_BMAPI_WRITE, &firstfsb, + XFS_BMAPI_WRITE|XFS_BMAPI_CONVERT, &firstfsb, 1, &imap, &nimaps, &free_list); if (error) goto error_on_bmapi_transaction; @@ -930,7 +962,7 @@ xfs_iomap_write_unwritten( xfs_iunlock(ip, XFS_ILOCK_EXCL); if (error) goto error0; - + if ( !(io->io_flags & XFS_IOCORE_RT) && !imap.br_startblock) { cmn_err(CE_PANIC,"Access to block zero: fs <%s> " "inode: %lld start_block : %llx start_off : " diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 5f6dce3b4fd..a2b422c984f 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -541,24 +541,6 @@ xfs_setattr( } /* - * Can't set extent size unless the file is marked, or - * about to be marked as a realtime file. - * - * This check will be removed when fixed size extents - * with buffered data writes is implemented. - * - */ - if ((mask & XFS_AT_EXTSIZE) && - ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != - vap->va_extsize) && - (!((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) || - ((mask & XFS_AT_XFLAGS) && - (vap->va_xflags & XFS_XFLAG_REALTIME))))) { - code = XFS_ERROR(EINVAL); - goto error_return; - } - - /* * Can't change realtime flag if any extents are allocated. */ if ((ip->i_d.di_nextents || ip->i_delayed_blks) && @@ -820,13 +802,17 @@ xfs_setattr( di_flags |= XFS_DIFLAG_RTINHERIT; if (vap->va_xflags & XFS_XFLAG_NOSYMLINKS) di_flags |= XFS_DIFLAG_NOSYMLINKS; - } else { + if (vap->va_xflags & XFS_XFLAG_EXTSZINHERIT) + di_flags |= XFS_DIFLAG_EXTSZINHERIT; + } else if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) { if (vap->va_xflags & XFS_XFLAG_REALTIME) { di_flags |= XFS_DIFLAG_REALTIME; ip->i_iocore.io_flags |= XFS_IOCORE_RT; } else { ip->i_iocore.io_flags &= ~XFS_IOCORE_RT; } + if (vap->va_xflags & XFS_XFLAG_EXTSIZE) + di_flags |= XFS_DIFLAG_EXTSIZE; } ip->i_d.di_flags = di_flags; } @@ -1568,7 +1554,8 @@ xfs_release( if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) && ((ip->i_d.di_size > 0) || (VN_CACHED(vp) > 0)) && (ip->i_df.if_flags & XFS_IFEXTENTS)) && - (!(ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)))) { + (!(ip->i_d.di_flags & + (XFS_DIFLAG_PREALLOC | XFS_DIFLAG_APPEND)))) { if ((error = xfs_inactive_free_eofblocks(mp, ip))) return (error); /* Update linux inode block count after free above */ @@ -1644,9 +1631,10 @@ xfs_inactive( if (ip->i_d.di_nlink != 0) { if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) && ((ip->i_d.di_size > 0) || (VN_CACHED(vp) > 0)) && - (ip->i_df.if_flags & XFS_IFEXTENTS)) && - (!(ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)) || - (ip->i_delayed_blks != 0))) { + (ip->i_df.if_flags & XFS_IFEXTENTS) && + (!(ip->i_d.di_flags & + (XFS_DIFLAG_PREALLOC | XFS_DIFLAG_APPEND)) || + (ip->i_delayed_blks != 0)))) { if ((error = xfs_inactive_free_eofblocks(mp, ip))) return (VN_INACTIVE_CACHE); /* Update linux inode block count after free above */ @@ -3998,42 +3986,36 @@ xfs_alloc_file_space( int alloc_type, int attr_flags) { + xfs_mount_t *mp = ip->i_mount; + xfs_off_t count; xfs_filblks_t allocated_fsb; xfs_filblks_t allocatesize_fsb; - int committed; - xfs_off_t count; - xfs_filblks_t datablocks; - int error; + xfs_extlen_t extsz, temp; + xfs_fileoff_t startoffset_fsb; xfs_fsblock_t firstfsb; - xfs_bmap_free_t free_list; - xfs_bmbt_irec_t *imapp; - xfs_bmbt_irec_t imaps[1]; - xfs_mount_t *mp; - int numrtextents; - int reccount; - uint resblks; + int nimaps; + int bmapi_flag; + int quota_flag; int rt; - int rtextsize; - xfs_fileoff_t startoffset_fsb; xfs_trans_t *tp; - int xfs_bmapi_flags; + xfs_bmbt_irec_t imaps[1], *imapp; + xfs_bmap_free_t free_list; + uint qblocks, resblks, resrtextents; + int committed; + int error; vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address); - mp = ip->i_mount; if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - /* - * determine if this is a realtime file - */ - if ((rt = XFS_IS_REALTIME_INODE(ip)) != 0) { - if (ip->i_d.di_extsize) - rtextsize = ip->i_d.di_extsize; - else - rtextsize = mp->m_sb.sb_rextsize; - } else - rtextsize = 0; + rt = XFS_IS_REALTIME_INODE(ip); + if (unlikely(rt)) { + if (!(extsz = ip->i_d.di_extsize)) + extsz = mp->m_sb.sb_rextsize; + } else { + extsz = ip->i_d.di_extsize; + } if ((error = XFS_QM_DQATTACH(mp, ip, 0))) return error; @@ -4044,8 +4026,8 @@ xfs_alloc_file_space( count = len; error = 0; imapp = &imaps[0]; - reccount = 1; - xfs_bmapi_flags = XFS_BMAPI_WRITE | (alloc_type ? XFS_BMAPI_PREALLOC : 0); + nimaps = 1; + bmapi_flag = XFS_BMAPI_WRITE | (alloc_type ? XFS_BMAPI_PREALLOC : 0); startoffset_fsb = XFS_B_TO_FSBT(mp, offset); allocatesize_fsb = XFS_B_TO_FSB(mp, count); @@ -4066,43 +4048,51 @@ xfs_alloc_file_space( } /* - * allocate file space until done or until there is an error + * Allocate file space until done or until there is an error */ retry: while (allocatesize_fsb && !error) { + xfs_fileoff_t s, e; + /* - * determine if reserving space on - * the data or realtime partition. + * Determine space reservations for data/realtime, */ - if (rt) { - xfs_fileoff_t s, e; - + if (unlikely(extsz)) { s = startoffset_fsb; - do_div(s, rtextsize); - s *= rtextsize; - e = roundup_64(startoffset_fsb + allocatesize_fsb, - rtextsize); - numrtextents = (int)(e - s) / mp->m_sb.sb_rextsize; - datablocks = 0; + do_div(s, extsz); + s *= extsz; + e = startoffset_fsb + allocatesize_fsb; + if ((temp = do_mod(startoffset_fsb, extsz))) + e += temp; + if ((temp = do_mod(e, extsz))) + e += extsz - temp; + } else { + s = 0; + e = allocatesize_fsb; + } + + if (unlikely(rt)) { + resrtextents = qblocks = (uint)(e - s); + resrtextents /= mp->m_sb.sb_rextsize; + resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0); + quota_flag = XFS_QMOPT_RES_RTBLKS; } else { - datablocks = allocatesize_fsb; - numrtextents = 0; + resrtextents = 0; + resblks = qblocks = \ + XFS_DIOSTRAT_SPACE_RES(mp, (uint)(e - s)); + quota_flag = XFS_QMOPT_RES_REGBLKS; } /* - * allocate and setup the transaction + * Allocate and setup the transaction. */ tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); - resblks = XFS_DIOSTRAT_SPACE_RES(mp, datablocks); - error = xfs_trans_reserve(tp, - resblks, - XFS_WRITE_LOG_RES(mp), - numrtextents, + error = xfs_trans_reserve(tp, resblks, + XFS_WRITE_LOG_RES(mp), resrtextents, XFS_TRANS_PERM_LOG_RES, XFS_WRITE_LOG_COUNT); - /* - * check for running out of space + * Check for running out of space */ if (error) { /* @@ -4113,8 +4103,8 @@ retry: break; } xfs_ilock(ip, XFS_ILOCK_EXCL); - error = XFS_TRANS_RESERVE_QUOTA(mp, tp, - ip->i_udquot, ip->i_gdquot, resblks, 0, 0); + error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, + qblocks, 0, quota_flag); if (error) goto error1; @@ -4122,19 +4112,19 @@ retry: xfs_trans_ihold(tp, ip); /* - * issue the bmapi() call to allocate the blocks + * Issue the xfs_bmapi() call to allocate the blocks */ XFS_BMAP_INIT(&free_list, &firstfsb); error = xfs_bmapi(tp, ip, startoffset_fsb, - allocatesize_fsb, xfs_bmapi_flags, - &firstfsb, 0, imapp, &reccount, + allocatesize_fsb, bmapi_flag, + &firstfsb, 0, imapp, &nimaps, &free_list); if (error) { goto error0; } /* - * complete the transaction + * Complete the transaction */ error = xfs_bmap_finish(&tp, &free_list, firstfsb, &committed); if (error) { @@ -4149,7 +4139,7 @@ retry: allocated_fsb = imapp->br_blockcount; - if (reccount == 0) { + if (nimaps == 0) { error = XFS_ERROR(ENOSPC); break; } @@ -4172,9 +4162,11 @@ dmapi_enospc_check: return error; - error0: +error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */ xfs_bmap_cancel(&free_list); - error1: + XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag); + +error1: /* Just cancel transaction */ xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); xfs_iunlock(ip, XFS_ILOCK_EXCL); goto dmapi_enospc_check; @@ -4419,8 +4411,8 @@ xfs_free_file_space( } xfs_ilock(ip, XFS_ILOCK_EXCL); error = XFS_TRANS_RESERVE_QUOTA(mp, tp, - ip->i_udquot, ip->i_gdquot, resblks, 0, rt ? - XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS); + ip->i_udquot, ip->i_gdquot, resblks, 0, + XFS_QMOPT_RES_REGBLKS); if (error) goto error1; |