From: Darrick J. Wong Date: Thu, 21 Nov 2024 00:21:04 +0000 (-0800) Subject: xfs: check that the rtrefcount maxlevels doesn't increase when growing fs X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=88a70768df138b97b36bf1571fcde92907812a3d;p=users%2Fjedix%2Flinux-maple.git xfs: check that the rtrefcount maxlevels doesn't increase when growing fs 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" Reviewed-by: Christoph Hellwig --- diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 9df5a09c0acd..455298503d01 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -23,6 +23,7 @@ #include "xfs_trace.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 @@ -231,6 +232,7 @@ 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 f5a3d5f8c948..a5de5405800a 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -995,6 +995,7 @@ xfs_growfs_rt_bmblock( */ mp->m_features |= XFS_FEAT_REALTIME; xfs_rtrmapbt_compute_maxlevels(mp); + xfs_rtrefcountbt_compute_maxlevels(mp); kfree(nmp); return 0; @@ -1178,6 +1179,7 @@ xfs_growfs_check_rtgeom( nmp->m_sb.sb_dblocks = dblocks; xfs_rtrmapbt_compute_maxlevels(nmp); + xfs_rtrefcountbt_compute_maxlevels(nmp); xfs_trans_resv_calc(nmp, M_RES(nmp)); /*