From db4710fd12248e5d4c3842520cd13f034136576b Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 13 Feb 2023 09:14:54 +1100 Subject: xfs: introduce xfs_alloc_vextent_near_bno() The remaining callers of xfs_alloc_vextent() are all doing NEAR_BNO allocations. We can replace that function with a new xfs_alloc_vextent_near_bno() function that does this explicitly. We also multiplex NEAR_BNO allocations through xfs_alloc_vextent_this_ag via args->type. Replace all of these with direct calls to xfs_alloc_vextent_near_bno(), too. Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_alloc.c | 50 +++++++++++++++++++++++--------------- fs/xfs/libxfs/xfs_alloc.h | 14 +++++------ fs/xfs/libxfs/xfs_bmap.c | 6 ++--- fs/xfs/libxfs/xfs_ialloc.c | 27 ++++++++------------ fs/xfs/libxfs/xfs_ialloc_btree.c | 5 ++-- fs/xfs/libxfs/xfs_refcount_btree.c | 7 +++--- 6 files changed, 55 insertions(+), 54 deletions(-) (limited to 'fs/xfs/libxfs') diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 008b3622b286..85e3b65286ac 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -3479,35 +3479,47 @@ xfs_alloc_vextent_first_ag( } /* - * Allocate an extent (variable-size). - * Depending on the allocation type, we either look in a single allocation - * group or loop over the allocation groups to find the result. + * Allocate an extent as close to the target as possible. If there are not + * viable candidates in the AG, then fail the allocation. */ int -xfs_alloc_vextent( - struct xfs_alloc_arg *args) +xfs_alloc_vextent_near_bno( + struct xfs_alloc_arg *args, + xfs_fsblock_t target) { + struct xfs_mount *mp = args->mp; + bool need_pag = !args->pag; xfs_agnumber_t minimum_agno = 0; int error; if (args->tp->t_highest_agno != NULLAGNUMBER) minimum_agno = args->tp->t_highest_agno; - switch (args->type) { - case XFS_ALLOCTYPE_THIS_AG: - case XFS_ALLOCTYPE_NEAR_BNO: - case XFS_ALLOCTYPE_THIS_BNO: - args->pag = xfs_perag_get(args->mp, - XFS_FSB_TO_AGNO(args->mp, args->fsbno)); - error = xfs_alloc_vextent_this_ag(args); - xfs_perag_put(args->pag); - break; - default: - error = -EFSCORRUPTED; - ASSERT(0); - break; + error = xfs_alloc_vextent_check_args(args, target); + if (error) { + if (error == -ENOSPC) + return 0; + return error; } - return error; + + args->agno = XFS_FSB_TO_AGNO(mp, target); + if (minimum_agno > args->agno) { + trace_xfs_alloc_vextent_skip_deadlock(args); + return 0; + } + + args->agbno = XFS_FSB_TO_AGBNO(mp, target); + args->type = XFS_ALLOCTYPE_NEAR_BNO; + if (need_pag) + args->pag = xfs_perag_get(args->mp, args->agno); + error = xfs_alloc_ag_vextent(args); + if (need_pag) + xfs_perag_put(args->pag); + if (error) + return error; + + xfs_alloc_vextent_set_fsbno(args, minimum_agno); + return 0; } /* Ensure that the freelist is at full capacity. */ diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h index 80e2c16f4cde..45a428e770f0 100644 --- a/fs/xfs/libxfs/xfs_alloc.h +++ b/fs/xfs/libxfs/xfs_alloc.h @@ -113,19 +113,19 @@ xfs_alloc_log_agf( struct xfs_buf *bp, /* buffer for a.g. freelist header */ uint32_t fields);/* mask of fields to be logged (XFS_AGF_...) */ -/* - * Allocate an extent (variable-size). - */ -int /* error */ -xfs_alloc_vextent( - xfs_alloc_arg_t *args); /* allocation argument structure */ - /* * Allocate an extent in the specific AG defined by args->fsbno. If there is no * space in that AG, then the allocation will fail. */ int xfs_alloc_vextent_this_ag(struct xfs_alloc_arg *args); +/* + * Allocate an extent as close to the target as possible. If there are not + * viable candidates in the AG, then fail the allocation. + */ +int xfs_alloc_vextent_near_bno(struct xfs_alloc_arg *args, + xfs_fsblock_t target); + /* * Best effort full filesystem allocation scan. * diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 94826f35fdae..da5809d3d004 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -3246,7 +3246,6 @@ xfs_bmap_btalloc_filestreams( int notinit = 0; int error; - args->type = XFS_ALLOCTYPE_NEAR_BNO; args->total = ap->total; start_agno = XFS_FSB_TO_AGNO(mp, ap->blkno); @@ -3565,7 +3564,7 @@ xfs_bmap_btalloc_at_eof( } if (ag_only) - error = xfs_alloc_vextent(args); + error = xfs_alloc_vextent_near_bno(args, ap->blkno); else error = xfs_alloc_vextent_start_ag(args, ap->blkno); if (error) @@ -3612,7 +3611,6 @@ xfs_bmap_btalloc_best_length( ap->blkno = XFS_INO_TO_FSB(mp, ap->ip->i_ino); } xfs_bmap_adjacent(ap); - args->fsbno = ap->blkno; /* * Search for an allocation group with a single extent large enough for @@ -3653,7 +3651,7 @@ xfs_bmap_btalloc_best_length( } if (is_filestream) - error = xfs_alloc_vextent(args); + error = xfs_alloc_vextent_near_bno(args, ap->blkno); else error = xfs_alloc_vextent_start_ag(args, ap->blkno); if (error) diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 74ad88853a8c..b85f038de9e3 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -717,23 +717,17 @@ xfs_ialloc_ag_alloc( isaligned = 1; } else args.alignment = igeo->cluster_align; - /* - * Need to figure out where to allocate the inode blocks. - * Ideally they should be spaced out through the a.g. - * For now, just allocate blocks up front. - */ - args.agbno = be32_to_cpu(agi->agi_root); - args.fsbno = XFS_AGB_TO_FSB(args.mp, pag->pag_agno, args.agbno); /* * Allocate a fixed-size extent of inodes. */ - args.type = XFS_ALLOCTYPE_NEAR_BNO; args.prod = 1; /* * Allow space for the inode btree to split. */ args.minleft = igeo->inobt_maxlevels; - error = xfs_alloc_vextent_this_ag(&args); + error = xfs_alloc_vextent_near_bno(&args, + XFS_AGB_TO_FSB(args.mp, pag->pag_agno, + be32_to_cpu(agi->agi_root))); if (error) return error; } @@ -743,11 +737,11 @@ xfs_ialloc_ag_alloc( * alignment. */ if (isaligned && args.fsbno == NULLFSBLOCK) { - args.type = XFS_ALLOCTYPE_NEAR_BNO; - args.agbno = be32_to_cpu(agi->agi_root); - args.fsbno = XFS_AGB_TO_FSB(args.mp, pag->pag_agno, args.agbno); args.alignment = igeo->cluster_align; - if ((error = xfs_alloc_vextent(&args))) + error = xfs_alloc_vextent_near_bno(&args, + XFS_AGB_TO_FSB(args.mp, pag->pag_agno, + be32_to_cpu(agi->agi_root))); + if (error) return error; } @@ -759,9 +753,6 @@ xfs_ialloc_ag_alloc( igeo->ialloc_min_blks < igeo->ialloc_blks && args.fsbno == NULLFSBLOCK) { sparse_alloc: - args.type = XFS_ALLOCTYPE_NEAR_BNO; - args.agbno = be32_to_cpu(agi->agi_root); - args.fsbno = XFS_AGB_TO_FSB(args.mp, pag->pag_agno, args.agbno); args.alignment = args.mp->m_sb.sb_spino_align; args.prod = 1; @@ -783,7 +774,9 @@ sparse_alloc: args.mp->m_sb.sb_inoalignmt) - igeo->ialloc_blks; - error = xfs_alloc_vextent_this_ag(&args); + error = xfs_alloc_vextent_near_bno(&args, + XFS_AGB_TO_FSB(args.mp, pag->pag_agno, + be32_to_cpu(agi->agi_root))); if (error) return error; diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c index fa6cd2502970..9b28211d5a4c 100644 --- a/fs/xfs/libxfs/xfs_ialloc_btree.c +++ b/fs/xfs/libxfs/xfs_ialloc_btree.c @@ -105,14 +105,13 @@ __xfs_inobt_alloc_block( args.mp = cur->bc_mp; args.pag = cur->bc_ag.pag; args.oinfo = XFS_RMAP_OINFO_INOBT; - args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_ag.pag->pag_agno, sbno); args.minlen = 1; args.maxlen = 1; args.prod = 1; - args.type = XFS_ALLOCTYPE_NEAR_BNO; args.resv = resv; - error = xfs_alloc_vextent_this_ag(&args); + error = xfs_alloc_vextent_near_bno(&args, + XFS_AGB_TO_FSB(args.mp, args.pag->pag_agno, sbno)); if (error) return error; diff --git a/fs/xfs/libxfs/xfs_refcount_btree.c b/fs/xfs/libxfs/xfs_refcount_btree.c index a980fb18bde2..f3b860970b26 100644 --- a/fs/xfs/libxfs/xfs_refcount_btree.c +++ b/fs/xfs/libxfs/xfs_refcount_btree.c @@ -68,14 +68,13 @@ xfs_refcountbt_alloc_block( args.tp = cur->bc_tp; args.mp = cur->bc_mp; args.pag = cur->bc_ag.pag; - args.type = XFS_ALLOCTYPE_NEAR_BNO; - args.fsbno = XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.pag->pag_agno, - xfs_refc_block(args.mp)); args.oinfo = XFS_RMAP_OINFO_REFC; args.minlen = args.maxlen = args.prod = 1; args.resv = XFS_AG_RESV_METADATA; - error = xfs_alloc_vextent_this_ag(&args); + error = xfs_alloc_vextent_near_bno(&args, + XFS_AGB_TO_FSB(args.mp, args.pag->pag_agno, + xfs_refc_block(args.mp))); if (error) goto out_error; trace_xfs_refcountbt_alloc_block(cur->bc_mp, cur->bc_ag.pag->pag_agno, -- cgit v1.2.3