sb_fdblocks will be updated lazily if lazysbcount is enabled, therefore when shrinking the filesystem sb_fdblocks could be larger than sb_dblocks and xfs_validate_sb_write() would fail. Even for growfs case, it'd be better to update lazy sb counters immediately to reflect the real sb counters. Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxx> --- fs/xfs/xfs_fsops.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index a2a407039227..2e490fb75832 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -128,6 +128,14 @@ xfs_growfs_data_private( nb - mp->m_sb.sb_dblocks); if (id.nfree) xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, id.nfree); + + /* + * update in-core counters now to reflect the real numbers + * (especially sb_fdblocks) + */ + if (xfs_sb_version_haslazysbcount(&mp->m_sb)) + xfs_log_sb(tp); + xfs_trans_set_sync(tp); error = xfs_trans_commit(tp); if (error) -- 2.27.0
