diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_ialloc.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_ialloc.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 90594b880653..9a18c0b5beb9 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -607,9 +607,18 @@ xfs_ialloc_ag_alloc( struct xfs_inobt_rec_incore rec; struct xfs_perag *pag; + int do_sparse = 0; + +#ifdef DEBUG + /* randomly do sparse inode allocations */ + if (xfs_sb_version_hassparseinodes(&tp->t_mountp->m_sb)) + do_sparse = prandom_u32() & 1; +#endif + memset(&args, 0, sizeof(args)); args.tp = tp; args.mp = tp->t_mountp; + args.fsbno = NULLFSBLOCK; /* * Locking will ensure that we don't have two callers in here @@ -631,6 +640,8 @@ xfs_ialloc_ag_alloc( agno = be32_to_cpu(agi->agi_seqno); args.agbno = XFS_AGINO_TO_AGBNO(args.mp, newino) + args.mp->m_ialloc_blks; + if (do_sparse) + goto sparse_alloc; if (likely(newino != NULLAGINO && (args.agbno < be32_to_cpu(agi->agi_length)))) { args.fsbno = XFS_AGB_TO_FSB(args.mp, agno, args.agbno); @@ -669,8 +680,7 @@ xfs_ialloc_ag_alloc( * subsequent requests. */ args.minalignslop = 0; - } else - args.fsbno = NULLFSBLOCK; + } if (unlikely(args.fsbno == NULLFSBLOCK)) { /* @@ -728,6 +738,7 @@ xfs_ialloc_ag_alloc( if (xfs_sb_version_hassparseinodes(&args.mp->m_sb) && args.mp->m_ialloc_min_blks < args.mp->m_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, agno, args.agbno); |