From: Bob Peterson rpeterso@redhat.com
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@vger.kernel.org # v4.12+ Signed-off-by: Bob Peterson rpeterso@redhat.com Signed-off-by: Andreas Gruenbacher agruenba@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/gfs2/bmap.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -1680,6 +1680,7 @@ 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();