Hi folks, v9: https://lore.kernel.org/r/20210305025703.3069469-1-hsiangkao@xxxxxxxxxx This patchset attempts to support shrinking free space in the last AG. This version mainly addresses previous review of v8. Hope I don't miss previous comments... changes since v8 (Brian): - [2/5] rename to `lastag_extended'; - [2/5] use `delta' instead; - [3/5] refine several comments; - [3/5] lock agf buffer here to close perag reservation race window; - [4/5] drop unnecessary `nb == mp->m_sb.sb_dblocks' check. - [4/5] refine a comment. Thanks for the time! Thanks, Gao Xiang Gao Xiang (5): xfs: update lazy sb counters immediately for resizefs xfs: hoist out xfs_resizefs_init_new_ags() xfs: introduce xfs_ag_shrink_space() xfs: support shrinking unused space in the last AG xfs: add error injection for per-AG resv failure fs/xfs/libxfs/xfs_ag.c | 115 +++++++++++++++++++++ fs/xfs/libxfs/xfs_ag.h | 2 + fs/xfs/libxfs/xfs_ag_resv.c | 6 +- fs/xfs/libxfs/xfs_errortag.h | 4 +- fs/xfs/xfs_error.c | 3 + fs/xfs/xfs_fsops.c | 194 ++++++++++++++++++++++------------- fs/xfs/xfs_trans.c | 1 - 7 files changed, 248 insertions(+), 77 deletions(-) -- 2.27.0
