diff options
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 17 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.c | 21 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.h | 7 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 9 |
4 files changed, 51 insertions, 3 deletions
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; } diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index eff8b4c3eb3e..4cedf6f8565b 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1451,3 +1451,24 @@ xfs_force_summary_recalc( xfs_fs_mark_sick(mp, XFS_SICK_FS_COUNTERS); } + +/* + * Update the in-core delayed block counter. + * + * We prefer to update the counter without having to take a spinlock for every + * counter update (i.e. batching). Each change to delayed allocation + * reservations can change can easily exceed the default percpu counter + * batching, so we use a larger batch factor here. + * + * Note that we don't currently have any callers requiring fast summation + * (e.g. percpu_counter_read) so we can use a big batch value here. + */ +#define XFS_DELALLOC_BATCH (4096) +void +xfs_mod_delalloc( + struct xfs_mount *mp, + int64_t delta) +{ + percpu_counter_add_batch(&mp->m_delalloc_blks, delta, + XFS_DELALLOC_BATCH); +} diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 14fba76ab811..c81a5cd7c228 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -81,6 +81,12 @@ typedef struct xfs_mount { struct percpu_counter m_icount; /* allocated inodes counter */ struct percpu_counter m_ifree; /* free inodes counter */ struct percpu_counter m_fdblocks; /* free block counter */ + /* + * Count of data device blocks reserved for delayed allocations, + * including indlen blocks. Does not include allocated CoW staging + * extents or anything related to the rt device. + */ + struct percpu_counter m_delalloc_blks; struct xfs_buf *m_sb_bp; /* buffer for superblock */ char *m_fsname; /* filesystem name */ @@ -475,5 +481,6 @@ int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb, struct xfs_error_cfg * xfs_error_get_cfg(struct xfs_mount *mp, int error_class, int error); void xfs_force_summary_recalc(struct xfs_mount *mp); +void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta); #endif /* __XFS_MOUNT_H__ */ diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index df917f41ca46..3a870a194cd9 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1538,8 +1538,14 @@ xfs_init_percpu_counters( if (error) goto free_ifree; + error = percpu_counter_init(&mp->m_delalloc_blks, 0, GFP_KERNEL); + if (error) + goto free_fdblocks; + return 0; +free_fdblocks: + percpu_counter_destroy(&mp->m_fdblocks); free_ifree: percpu_counter_destroy(&mp->m_ifree); free_icount: @@ -1563,6 +1569,9 @@ xfs_destroy_percpu_counters( percpu_counter_destroy(&mp->m_icount); percpu_counter_destroy(&mp->m_ifree); percpu_counter_destroy(&mp->m_fdblocks); + ASSERT(XFS_FORCED_SHUTDOWN(mp) || + percpu_counter_sum(&mp->m_delalloc_blks) == 0); + percpu_counter_destroy(&mp->m_delalloc_blks); } static struct xfs_mount * |