From 3781461a444ce784056eca12ce328c9eebc88998 Mon Sep 17 00:00:00 2001 From: chenerqi Date: Wed, 10 Apr 2019 13:56:29 +0800 Subject: [PATCH] mds: check dir fragment to split dir if mkdir makes it oversized. In handle_client_mkdir we hit_dir (via hit_inode) in mkdir finish callback, but by then we might have overshot the split size (multiple mkdir in flight), so check dir fragment for an early chance to split the dir if mkdir makes it oversized. Fixes: https://tracker.ceph.com/issues/39166 Signed-off-by: Erqi Chen (cherry picked from commit 01b4818c26b744ef74ccb09586ec03478f6b1b61) --- src/mds/Server.cc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mds/Server.cc b/src/mds/Server.cc index 8bfd19cbcfaad..1c720953800ce 100644 --- a/src/mds/Server.cc +++ b/src/mds/Server.cc @@ -5830,6 +5830,11 @@ void Server::handle_client_mkdir(MDRequestRef& mdr) le->metablob.add_opened_ino(newi->ino()); journal_and_reply(mdr, newi, dn, le, new C_MDS_mknod_finish(this, mdr, dn, newi)); + + // We hit_dir (via hit_inode) in our finish callback, but by then we might + // have overshot the split size (multiple mkdir in flight), so here is + // an early chance to split the dir if this mkdir makes it oversized. + mds->balancer->maybe_fragment(dir, false); } -- 2.39.5