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| author | Eelco Chaudron <echaudro@redhat.com> | 2020-11-03 11:25:49 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-04 03:57:42 +0300 |
| commit | fea07a487c6dd422dc8837237c9d2bc7c33119af (patch) | |
| tree | ebc98ebedce3b675e448eea3944ed2215c164c3c /net/openvswitch/flow_table.c | |
| parent | dbfe394dad33f99cf8458be50483ec40a5d29c34 (diff) | |
| download | linux-fea07a487c6dd422dc8837237c9d2bc7c33119af.tar.xz | |
net: openvswitch: silence suspicious RCU usage warning
Silence suspicious RCU usage warning in ovs_flow_tbl_masks_cache_resize()
by replacing rcu_dereference() with rcu_dereference_ovsl().
In addition, when creating a new datapath, make sure it's configured under
the ovs_lock.
Fixes: 9bf24f594c6a ("net: openvswitch: make masks cache size configurable")
Reported-by: syzbot+9a8f8bfcc56e8578016c@syzkaller.appspotmail.com
Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://lore.kernel.org/r/160439190002.56943.1418882726496275961.stgit@ebuild
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/openvswitch/flow_table.c')
| -rw-r--r-- | net/openvswitch/flow_table.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c index f3486a37361a..c89c8da99f1a 100644 --- a/net/openvswitch/flow_table.c +++ b/net/openvswitch/flow_table.c @@ -390,7 +390,7 @@ static struct mask_cache *tbl_mask_cache_alloc(u32 size) } int ovs_flow_tbl_masks_cache_resize(struct flow_table *table, u32 size) { - struct mask_cache *mc = rcu_dereference(table->mask_cache); + struct mask_cache *mc = rcu_dereference_ovsl(table->mask_cache); struct mask_cache *new; if (size == mc->cache_size) |