From 9fe82b8c422b5d9e9011bc08e27b9044936d945f Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Thu, 25 Apr 2019 18:26:22 -0700 Subject: xfs: track delayed allocation reservations across the filesystem Add a percpu counter to track the number of blocks directly reserved for delayed allocations on the data device. This counter (in contrast to i_delayed_blks) does not track allocated CoW staging extents or anything going on with the realtime device. It will be used in the upcoming summary counter scrub function to check the free block counts without having to freeze the filesystem or walk all the inodes to find the delayed allocations. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner --- fs/xfs/libxfs/xfs_bmap.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'fs/xfs/libxfs/xfs_bmap.c') diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 4637ae1ae91c..356ebd1cbe82 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -2009,6 +2009,9 @@ xfs_bmap_add_extent_delay_real( goto done; } + if (da_new != da_old) + xfs_mod_delalloc(mp, (int64_t)da_new - da_old); + if (bma->cur) { da_new += bma->cur->bc_private.b.allocated; bma->cur->bc_private.b.allocated = 0; @@ -2640,6 +2643,7 @@ xfs_bmap_add_extent_hole_delay( /* * Nothing to do for disk quota accounting here. */ + xfs_mod_delalloc(ip->i_mount, (int64_t)newlen - oldlen); } } @@ -3352,8 +3356,10 @@ xfs_bmap_btalloc_accounting( * already have quota reservation and there's nothing to do * yet. */ - if (ap->wasdel) + if (ap->wasdel) { + xfs_mod_delalloc(ap->ip->i_mount, -(int64_t)args->len); return; + } /* * Otherwise, we've allocated blocks in a hole. The transaction @@ -3372,8 +3378,10 @@ xfs_bmap_btalloc_accounting( /* data/attr fork only */ ap->ip->i_d.di_nblocks += args->len; xfs_trans_log_inode(ap->tp, ap->ip, XFS_ILOG_CORE); - if (ap->wasdel) + if (ap->wasdel) { ap->ip->i_delayed_blks -= args->len; + xfs_mod_delalloc(ap->ip->i_mount, -(int64_t)args->len); + } xfs_trans_mod_dquot_byino(ap->tp, ap->ip, ap->wasdel ? XFS_TRANS_DQ_DELBCOUNT : XFS_TRANS_DQ_BCOUNT, args->len); @@ -3969,6 +3977,7 @@ xfs_bmapi_reserve_delalloc( ip->i_delayed_blks += alen; + xfs_mod_delalloc(ip->i_mount, alen + indlen); got->br_startoff = aoff; got->br_startblock = nullstartblock(indlen); @@ -4840,8 +4849,10 @@ xfs_bmap_del_extent_delay( da_diff = da_old - da_new; if (!isrt) da_diff += del->br_blockcount; - if (da_diff) + if (da_diff) { xfs_mod_fdblocks(mp, da_diff, false); + xfs_mod_delalloc(mp, -da_diff); + } return error; } -- cgit v1.2.3