diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/gfs2/lock_dlm.c | 9 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_ialloc_btree.c | 9 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_refcount_btree.c | 9 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_rmap_btree.c | 9 |
4 files changed, 32 insertions, 4 deletions
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index 31df26ed7854..69bd1597bacf 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -31,9 +31,10 @@ * @delta is the difference between the current rtt sample and the * running average srtt. We add 1/8 of that to the srtt in order to * update the current srtt estimate. The variance estimate is a bit - * more complicated. We subtract the abs value of the @delta from - * the current variance estimate and add 1/4 of that to the running - * total. + * more complicated. We subtract the current variance estimate from + * the abs value of the @delta and add 1/4 of that to the running + * total. That's equivalent to 3/4 of the current variance + * estimate plus 1/4 of the abs of @delta. * * Note that the index points at the array entry containing the smoothed * mean value, and the variance is always in the following entry @@ -49,7 +50,7 @@ static inline void gfs2_update_stats(struct gfs2_lkstats *s, unsigned index, s64 delta = sample - s->stats[index]; s->stats[index] += (delta >> 3); index++; - s->stats[index] += ((abs(delta) - s->stats[index]) >> 2); + s->stats[index] += (s64)(abs(delta) - s->stats[index]) >> 2; } /** diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c index 1080381ff243..bc2dfacd2f4a 100644 --- a/fs/xfs/libxfs/xfs_ialloc_btree.c +++ b/fs/xfs/libxfs/xfs_ialloc_btree.c @@ -549,6 +549,15 @@ xfs_inobt_max_size( if (mp->m_inobt_mxr[0] == 0) return 0; + /* + * The log is permanently allocated, so the space it occupies will + * never be available for the kinds of things that would require btree + * expansion. We therefore can pretend the space isn't there. + */ + if (mp->m_sb.sb_logstart && + XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno) + agblocks -= mp->m_sb.sb_logblocks; + return xfs_btree_calc_size(mp->m_inobt_mnr, (uint64_t)agblocks * mp->m_sb.sb_inopblock / XFS_INODES_PER_CHUNK); diff --git a/fs/xfs/libxfs/xfs_refcount_btree.c b/fs/xfs/libxfs/xfs_refcount_btree.c index 6f47ab876d90..5d9de9b21726 100644 --- a/fs/xfs/libxfs/xfs_refcount_btree.c +++ b/fs/xfs/libxfs/xfs_refcount_btree.c @@ -427,6 +427,15 @@ xfs_refcountbt_calc_reserves( tree_len = be32_to_cpu(agf->agf_refcount_blocks); xfs_trans_brelse(tp, agbp); + /* + * The log is permanently allocated, so the space it occupies will + * never be available for the kinds of things that would require btree + * expansion. We therefore can pretend the space isn't there. + */ + if (mp->m_sb.sb_logstart && + XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno) + agblocks -= mp->m_sb.sb_logblocks; + *ask += xfs_refcountbt_max_size(mp, agblocks); *used += tree_len; diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c index 5738e11055e6..5d1f8884c888 100644 --- a/fs/xfs/libxfs/xfs_rmap_btree.c +++ b/fs/xfs/libxfs/xfs_rmap_btree.c @@ -578,6 +578,15 @@ xfs_rmapbt_calc_reserves( tree_len = be32_to_cpu(agf->agf_rmap_blocks); xfs_trans_brelse(tp, agbp); + /* + * The log is permanently allocated, so the space it occupies will + * never be available for the kinds of things that would require btree + * expansion. We therefore can pretend the space isn't there. + */ + if (mp->m_sb.sb_logstart && + XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno) + agblocks -= mp->m_sb.sb_logblocks; + /* Reserve 1% of the AG or enough for 1 block per record. */ *ask += max(agblocks / 100, xfs_rmapbt_max_size(mp, agblocks)); *used += tree_len; |