xfs: move firstblock and bmap freelist cursor into bmalloca structure
Rather than passing the firstblock and freelist structure around, embed it into the bmalloca structure and remove it from the function parameters. This also enables the minleft parameter to be set only once in xfs_bmapi_write(), and the freelist cursor directly queried in xfs_bmapi_allocate to clear it when the lowspace algorithm is activated. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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@ -2006,9 +2006,9 @@ xfs_bmap_adjacent(
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XFS_FSB_TO_AGBNO(mp, x) < mp->m_sb.sb_agblocks)
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mp = ap->ip->i_mount;
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nullfb = ap->firstblock == NULLFSBLOCK;
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nullfb = *ap->firstblock == NULLFSBLOCK;
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rt = XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata;
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fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, ap->firstblock);
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fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock);
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/*
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* If allocating at eof, and there's a previous real block,
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* try to use its last block as our starting point.
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@ -2380,8 +2380,8 @@ xfs_bmap_btalloc(
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ASSERT(!error);
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ASSERT(ap->alen);
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}
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nullfb = ap->firstblock == NULLFSBLOCK;
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fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, ap->firstblock);
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nullfb = *ap->firstblock == NULLFSBLOCK;
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fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock);
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if (nullfb) {
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if (ap->userdata && xfs_inode_is_filestream(ap->ip)) {
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ag = xfs_filestream_lookup_ag(ap->ip);
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@ -2391,7 +2391,7 @@ xfs_bmap_btalloc(
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ap->rval = XFS_INO_TO_FSB(mp, ap->ip->i_ino);
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}
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} else
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ap->rval = ap->firstblock;
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ap->rval = *ap->firstblock;
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xfs_bmap_adjacent(ap);
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@ -2402,7 +2402,7 @@ xfs_bmap_btalloc(
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if (nullfb || XFS_FSB_TO_AGNO(mp, ap->rval) == fb_agno)
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;
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else
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ap->rval = ap->firstblock;
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ap->rval = *ap->firstblock;
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/*
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* Normal allocation, done through xfs_alloc_vextent.
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*/
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@ -2413,13 +2413,13 @@ xfs_bmap_btalloc(
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/* Trim the allocation back to the maximum an AG can fit. */
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args.maxlen = MIN(ap->alen, XFS_ALLOC_AG_MAX_USABLE(mp));
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args.firstblock = ap->firstblock;
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args.firstblock = *ap->firstblock;
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blen = 0;
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if (nullfb) {
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error = xfs_bmap_btalloc_nullfb(ap, &args, &blen);
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if (error)
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return error;
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} else if (ap->low) {
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} else if (ap->flist->xbf_low) {
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if (xfs_inode_is_filestream(ap->ip))
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args.type = XFS_ALLOCTYPE_FIRST_AG;
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else
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@ -2452,7 +2452,7 @@ xfs_bmap_btalloc(
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* is >= the stripe unit and the allocation offset is
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* at the end of file.
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*/
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if (!ap->low && ap->aeof) {
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if (!ap->flist->xbf_low && ap->aeof) {
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if (!ap->off) {
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args.alignment = mp->m_dalign;
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atype = args.type;
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@ -2540,12 +2540,25 @@ xfs_bmap_btalloc(
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args.minleft = 0;
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if ((error = xfs_alloc_vextent(&args)))
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return error;
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ap->low = 1;
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ap->flist->xbf_low = 1;
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}
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if (args.fsbno != NULLFSBLOCK) {
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ap->firstblock = ap->rval = args.fsbno;
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/*
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* check the allocation happened at the same or higher AG than
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* the first block that was allocated.
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*/
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ASSERT(*ap->firstblock == NULLFSBLOCK ||
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XFS_FSB_TO_AGNO(mp, *ap->firstblock) ==
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XFS_FSB_TO_AGNO(mp, args.fsbno) ||
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(ap->flist->xbf_low &&
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XFS_FSB_TO_AGNO(mp, *ap->firstblock) <
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XFS_FSB_TO_AGNO(mp, args.fsbno)));
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ap->rval = args.fsbno;
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if (*ap->firstblock == NULLFSBLOCK)
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*ap->firstblock = args.fsbno;
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ASSERT(nullfb || fb_agno == args.agno ||
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(ap->low && fb_agno < args.agno));
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(ap->flist->xbf_low && fb_agno < args.agno));
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ap->alen = args.len;
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ap->ip->i_d.di_nblocks += args.len;
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xfs_trans_log_inode(ap->tp, ap->ip, XFS_ILOG_CORE);
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@ -4596,8 +4609,6 @@ xfs_bmapi_allocate(
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struct xfs_bmalloca *bma,
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xfs_extnum_t *lastx,
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struct xfs_btree_cur **cur,
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xfs_fsblock_t *firstblock,
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struct xfs_bmap_free *flist,
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int flags,
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int *nallocs,
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int *logflags)
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@ -4647,9 +4658,7 @@ xfs_bmapi_allocate(
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*/
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bma->alen = alen;
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bma->off = aoff;
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bma->firstblock = *firstblock;
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bma->minlen = (flags & XFS_BMAPI_CONTIG) ? alen : 1;
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bma->low = flist->xbf_low;
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bma->aeof = 0;
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/*
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@ -4671,24 +4680,18 @@ xfs_bmapi_allocate(
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* Copy out result fields.
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*/
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abno = bma->rval;
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flist->xbf_low = bma->low;
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alen = bma->alen;
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aoff = bma->off;
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ASSERT(*firstblock == NULLFSBLOCK ||
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XFS_FSB_TO_AGNO(mp, *firstblock) ==
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XFS_FSB_TO_AGNO(mp, bma->firstblock) ||
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(flist->xbf_low &&
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XFS_FSB_TO_AGNO(mp, *firstblock) <
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XFS_FSB_TO_AGNO(mp, bma->firstblock)));
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*firstblock = bma->firstblock;
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if (bma->flist->xbf_low)
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bma->minleft = 0;
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if (*cur)
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(*cur)->bc_private.b.firstblock = *firstblock;
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(*cur)->bc_private.b.firstblock = *bma->firstblock;
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if (abno == NULLFSBLOCK)
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return 0;
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if ((ifp->if_flags & XFS_IFBROOT) && !*cur) {
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(*cur) = xfs_bmbt_init_cursor(mp, bma->tp, bma->ip, whichfork);
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(*cur)->bc_private.b.firstblock = *firstblock;
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(*cur)->bc_private.b.flist = flist;
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(*cur)->bc_private.b.firstblock = *bma->firstblock;
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(*cur)->bc_private.b.flist = bma->flist;
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}
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/*
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* Bump the number of extents we've allocated
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@ -4715,11 +4718,12 @@ xfs_bmapi_allocate(
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if (bma->wasdel) {
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error = xfs_bmap_add_extent_delay_real(bma->tp, bma->ip, lastx,
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cur, &bma->got, firstblock, flist, logflags);
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cur, &bma->got, bma->firstblock, bma->flist,
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logflags);
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} else {
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error = xfs_bmap_add_extent_hole_real(bma->tp, bma->ip, lastx,
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cur, &bma->got, firstblock, flist, logflags,
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whichfork);
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cur, &bma->got, bma->firstblock, bma->flist,
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logflags, whichfork);
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}
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if (error)
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@ -4746,8 +4750,6 @@ xfs_bmapi_convert_unwritten(
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xfs_filblks_t len,
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xfs_extnum_t *lastx,
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struct xfs_btree_cur **cur,
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xfs_fsblock_t *firstblock,
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struct xfs_bmap_free *flist,
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int flags,
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int *logflags)
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{
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@ -4776,14 +4778,14 @@ xfs_bmapi_convert_unwritten(
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if ((ifp->if_flags & XFS_IFBROOT) && !*cur) {
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*cur = xfs_bmbt_init_cursor(bma->ip->i_mount, bma->tp,
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bma->ip, whichfork);
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(*cur)->bc_private.b.firstblock = *firstblock;
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(*cur)->bc_private.b.flist = flist;
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(*cur)->bc_private.b.firstblock = *bma->firstblock;
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(*cur)->bc_private.b.flist = bma->flist;
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}
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mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN)
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? XFS_EXT_NORM : XFS_EXT_UNWRITTEN;
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error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, lastx,
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cur, mval, firstblock, flist, logflags);
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cur, mval, bma->firstblock, bma->flist, logflags);
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if (error)
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return error;
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@ -4838,7 +4840,6 @@ xfs_bmapi_write(
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int error; /* error return */
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xfs_extnum_t lastx; /* last useful extent number */
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int logflags; /* flags for transaction logging */
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xfs_extlen_t minleft; /* min blocks left after allocation */
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int n; /* current extent index */
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int nallocs; /* number of extents alloc'd */
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xfs_fileoff_t obno; /* old block number (offset) */
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@ -4900,11 +4901,11 @@ xfs_bmapi_write(
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if (*firstblock == NULLFSBLOCK) {
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if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE)
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minleft = be16_to_cpu(ifp->if_broot->bb_level) + 1;
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bma.minleft = be16_to_cpu(ifp->if_broot->bb_level) + 1;
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else
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minleft = 1;
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bma.minleft = 1;
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} else {
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minleft = 0;
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bma.minleft = 0;
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}
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if (!(ifp->if_flags & XFS_IFEXTENTS)) {
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@ -4923,6 +4924,8 @@ xfs_bmapi_write(
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bma.ip = ip;
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bma.total = total;
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bma.userdata = 0;
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bma.flist = flist;
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bma.firstblock = firstblock;
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while (bno < end && n < *nmap) {
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inhole = eof || bma.got.br_startoff > bno;
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bma.wasdel = wasdelay;
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bma.alen = len;
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bma.off = bno;
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bma.minleft = minleft;
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error = xfs_bmapi_allocate(&bma, &lastx, &cur,
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firstblock, flist, flags, &nallocs,
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&tmp_logflags);
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error = xfs_bmapi_allocate(&bma, &lastx, &cur, flags,
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&nallocs, &tmp_logflags);
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logflags |= tmp_logflags;
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if (error)
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goto error0;
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if (flist && flist->xbf_low)
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minleft = 0;
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if (bma.rval == NULLFSBLOCK)
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break;
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}
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@ -4958,8 +4957,7 @@ xfs_bmapi_write(
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/* Execute unwritten extent conversion if necessary */
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error = xfs_bmapi_convert_unwritten(&bma, mval, len, &lastx,
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&cur, firstblock, flist,
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flags, &tmp_logflags);
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&cur, flags, &tmp_logflags);
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logflags |= tmp_logflags;
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if (error == EAGAIN)
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continue;
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@ -109,7 +109,8 @@ static inline void xfs_bmap_init(xfs_bmap_free_t *flp, xfs_fsblock_t *fbp)
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* Argument structure for xfs_bmap_alloc.
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*/
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typedef struct xfs_bmalloca {
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xfs_fsblock_t firstblock; /* i/o first block allocated */
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xfs_fsblock_t *firstblock; /* i/o first block allocated */
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struct xfs_bmap_free *flist; /* bmap freelist */
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xfs_fsblock_t rval; /* starting block of new extent */
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xfs_fileoff_t off; /* offset in file filling in */
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struct xfs_trans *tp; /* transaction pointer */
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@ -123,7 +124,6 @@ typedef struct xfs_bmalloca {
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char eof; /* set if allocating past last extent */
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char wasdel; /* replacing a delayed allocation */
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char userdata;/* set if is user data */
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char low; /* low on space, using seq'l ags */
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char aeof; /* allocated space at eof */
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char conv; /* overwriting unwritten extents */
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} xfs_bmalloca_t;
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@ -761,7 +761,7 @@ xfs_filestream_new_ag(
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*/
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ag = (ag == NULLAGNUMBER) ? 0 : (ag + 1) % mp->m_sb.sb_agcount;
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flags = (ap->userdata ? XFS_PICK_USERDATA : 0) |
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(ap->low ? XFS_PICK_LOWSPACE : 0);
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(ap->flist->xbf_low ? XFS_PICK_LOWSPACE : 0);
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err = _xfs_filestream_pick_ag(mp, ag, agp, flags, minlen);
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if (err || *agp == NULLAGNUMBER)
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