From: Bob Peterson <rpeterso@xxxxxxxxxx> commit f0b444b349e33ae0d3dd93e25ca365482a5d17d4 upstream. In function sweep_bh_for_rgrps, which is a helper for punch_hole, it uses variable buf_in_tr to keep track of when it needs to commit pending block frees on a partial delete that overflows the transaction created for the delete. The problem is that the variable was initialized at the start of function sweep_bh_for_rgrps but it was never cleared, even when starting a new transaction. This patch reinitializes the variable when the transaction is ended, so the next transaction starts out with it cleared. Fixes: d552a2b9b33e ("GFS2: Non-recursive delete") Cc: stable@xxxxxxxxxxxxxxx # v4.12+ Signed-off-by: Bob Peterson <rpeterso@xxxxxxxxxx> Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/gfs2/bmap.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -1670,6 +1670,7 @@ out_unlock: brelse(dibh); up_write(&ip->i_rw_mutex); gfs2_trans_end(sdp); + buf_in_tr = false; } gfs2_glock_dq_uninit(rd_gh); cond_resched();