From: Darrick J. Wong <djwong@xxxxxxxxxx> The size of filesystem transaction reservations depends on the maximum height (maxlevels) of the realtime btrees. Since we don't want a grow operation to increase the reservation size enough that we'll fail the minimum log size checks on the next mount, constrain growfs operations if they would cause an increase in the rt refcount btree maxlevels. Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx> --- fs/xfs/xfs_fsops.c | 2 ++ fs/xfs/xfs_rtalloc.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index e78ee67b9dd12..9584c08480f75 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -24,6 +24,7 @@ #include "xfs_rtgroup.h" #include "xfs_rtalloc.h" #include "xfs_rtrmap_btree.h" +#include "xfs_rtrefcount_btree.h" /* * Write new AG headers to disk. Non-transactional, but need to be @@ -238,6 +239,7 @@ xfs_growfs_data_private( /* Compute new maxlevels for rt btrees. */ xfs_rtrmapbt_compute_maxlevels(mp); + xfs_rtrefcountbt_compute_maxlevels(mp); } return error; diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 14e17c2b39ef0..54859b32d37fc 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -1128,6 +1128,7 @@ xfs_growfs_check_rtgeom( fake_mp->m_features |= XFS_FEAT_REALTIME; xfs_rtrmapbt_compute_maxlevels(fake_mp); + xfs_rtrefcountbt_compute_maxlevels(fake_mp); xfs_trans_resv_calc(fake_mp, M_RES(fake_mp)); min_logfsbs = xfs_log_calc_minimum_size(fake_mp); @@ -1451,6 +1452,7 @@ xfs_growfs_rt( */ mp->m_features |= XFS_FEAT_REALTIME; xfs_rtrmapbt_compute_maxlevels(mp); + xfs_rtrefcountbt_compute_maxlevels(mp); } if (error) goto out_free;
