From ec23df2b0cf3e1620f5db77972b7fb735f267eff Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Thu, 27 Sep 2018 15:30:25 +0100 Subject: gfs2: Fix marking bitmaps non-full Reservations in gfs can span multiple gfs2_bitmaps (but they won't span multiple resource groups). When removing a reservation, we want to clear the GBF_FULL flags of all involved gfs2_bitmaps, not just that of the first bitmap. Signed-off-by: Andreas Gruenbacher Signed-off-by: Bob Peterson Reviewed-by: Steven Whitehouse --- fs/gfs2/rgrp.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'fs/gfs2') diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index f47c76d9d9d0..7c5904c49a6a 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -641,7 +641,10 @@ static void __rs_deltree(struct gfs2_blkreserv *rs) RB_CLEAR_NODE(&rs->rs_node); if (rs->rs_free) { - struct gfs2_bitmap *bi = rbm_bi(&rs->rs_rbm); + u64 last_block = gfs2_rbm_to_block(&rs->rs_rbm) + + rs->rs_free - 1; + struct gfs2_rbm last_rbm = { .rgd = rs->rs_rbm.rgd, }; + struct gfs2_bitmap *start, *last; /* return reserved blocks to the rgrp */ BUG_ON(rs->rs_rbm.rgd->rd_reserved < rs->rs_free); @@ -652,7 +655,13 @@ static void __rs_deltree(struct gfs2_blkreserv *rs) it will force the number to be recalculated later. */ rgd->rd_extfail_pt += rs->rs_free; rs->rs_free = 0; - clear_bit(GBF_FULL, &bi->bi_flags); + if (gfs2_rbm_from_block(&last_rbm, last_block)) + return; + start = rbm_bi(&rs->rs_rbm); + last = rbm_bi(&last_rbm); + do + clear_bit(GBF_FULL, &start->bi_flags); + while (start++ != last); } } -- cgit v1.2.3-59-g8ed1b