From 7590632a33ef2d264665576d3d54e50f906fa758 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 11 Apr 2017 16:45:57 -0700 Subject: xfs: remove bmap block allocation retries Now that reflink operations don't set the firstblock value we don't need the workarounds for non-NULL firstblock values without a prior allocation. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_bmap.c | 29 ----------------------------- fs/xfs/libxfs/xfs_bmap_btree.c | 17 ----------------- 2 files changed, 46 deletions(-) (limited to 'fs/xfs') diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 9f55e5185d56..7f42f6067eb5 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -764,7 +764,6 @@ xfs_bmap_extents_to_btree( args.fsbno = XFS_INO_TO_FSB(mp, ip->i_ino); } else if (dfops->dop_low) { args.type = XFS_ALLOCTYPE_START_BNO; -try_another_ag: args.fsbno = *firstblock; } else { args.type = XFS_ALLOCTYPE_NEAR_BNO; @@ -779,20 +778,6 @@ try_another_ag: return error; } - /* - * During a CoW operation, the allocation and bmbt updates occur in - * different transactions. The mapping code tries to put new bmbt - * blocks near extents being mapped, but the only way to guarantee this - * is if the alloc and the mapping happen in a single transaction that - * has a block reservation. That isn't the case here, so if we run out - * of space we'll try again with another AG. - */ - if (xfs_sb_version_hasreflink(&cur->bc_mp->m_sb) && - args.fsbno == NULLFSBLOCK && - args.type == XFS_ALLOCTYPE_NEAR_BNO) { - args.type = XFS_ALLOCTYPE_FIRST_AG; - goto try_another_ag; - } if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) { xfs_iroot_realloc(ip, -1, whichfork); xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); @@ -925,7 +910,6 @@ xfs_bmap_local_to_extents( * file currently fits in an inode. */ if (*firstblock == NULLFSBLOCK) { -try_another_ag: args.fsbno = XFS_INO_TO_FSB(args.mp, ip->i_ino); args.type = XFS_ALLOCTYPE_START_BNO; } else { @@ -938,19 +922,6 @@ try_another_ag: if (error) goto done; - /* - * During a CoW operation, the allocation and bmbt updates occur in - * different transactions. The mapping code tries to put new bmbt - * blocks near extents being mapped, but the only way to guarantee this - * is if the alloc and the mapping happen in a single transaction that - * has a block reservation. That isn't the case here, so if we run out - * of space we'll try again with another AG. - */ - if (xfs_sb_version_hasreflink(&ip->i_mount->m_sb) && - args.fsbno == NULLFSBLOCK && - args.type == XFS_ALLOCTYPE_NEAR_BNO) { - goto try_another_ag; - } /* Can't fail, the space was reserved. */ ASSERT(args.fsbno != NULLFSBLOCK); ASSERT(args.len == 1); diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c index fd55db479385..3e17ceda038c 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.c +++ b/fs/xfs/libxfs/xfs_bmap_btree.c @@ -448,7 +448,6 @@ xfs_bmbt_alloc_block( if (args.fsbno == NULLFSBLOCK) { args.fsbno = be64_to_cpu(start->l); args.type = XFS_ALLOCTYPE_START_BNO; -try_another_ag: /* * Make sure there is sufficient room left in the AG to * complete a full tree split for an extent insert. If @@ -477,22 +476,6 @@ try_another_ag: if (error) goto error0; - /* - * During a CoW operation, the allocation and bmbt updates occur in - * different transactions. The mapping code tries to put new bmbt - * blocks near extents being mapped, but the only way to guarantee this - * is if the alloc and the mapping happen in a single transaction that - * has a block reservation. That isn't the case here, so if we run out - * of space we'll try again with another AG. - */ - if (xfs_sb_version_hasreflink(&cur->bc_mp->m_sb) && - args.fsbno == NULLFSBLOCK && - args.type == XFS_ALLOCTYPE_NEAR_BNO) { - args.fsbno = cur->bc_private.b.firstblock; - args.type = XFS_ALLOCTYPE_FIRST_AG; - goto try_another_ag; - } - if (args.fsbno == NULLFSBLOCK && args.minleft) { /* * Could not find an AG with enough free space to satisfy -- cgit v1.2.3