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| author | David S. Miller <davem@davemloft.net> | 2020-03-26 02:58:11 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-26 02:58:11 +0100 |
| commit | 9fb16955fb661945ddffce4504dcffbe55cd518a (patch) | |
| tree | e0811476a96a9411686e24f15a48d63cc6d02e49 /kernel/bpf/bpf_struct_ops.c | |
| parent | cxgb4: Add support to catch bits set in INT_CAUSE5 (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff) | |
| download | linux-9fb16955fb661945ddffce4504dcffbe55cd518a.tar.xz linux-9fb16955fb661945ddffce4504dcffbe55cd518a.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Overlapping header include additions in macsec.c
A bug fix in 'net' overlapping with the removal of 'version'
string in ena_netdev.c
Overlapping test additions in selftests Makefile
Overlapping PCI ID table adjustments in iwlwifi driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf/bpf_struct_ops.c')
| -rw-r--r-- | kernel/bpf/bpf_struct_ops.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c index ca5cc8cdb6eb..26cb51f2db72 100644 --- a/kernel/bpf/bpf_struct_ops.c +++ b/kernel/bpf/bpf_struct_ops.c @@ -490,13 +490,21 @@ static int bpf_struct_ops_map_delete_elem(struct bpf_map *map, void *key) prev_state = cmpxchg(&st_map->kvalue.state, BPF_STRUCT_OPS_STATE_INUSE, BPF_STRUCT_OPS_STATE_TOBEFREE); - if (prev_state == BPF_STRUCT_OPS_STATE_INUSE) { + switch (prev_state) { + case BPF_STRUCT_OPS_STATE_INUSE: st_map->st_ops->unreg(&st_map->kvalue.data); if (refcount_dec_and_test(&st_map->kvalue.refcnt)) bpf_map_put(map); + return 0; + case BPF_STRUCT_OPS_STATE_TOBEFREE: + return -EINPROGRESS; + case BPF_STRUCT_OPS_STATE_INIT: + return -ENOENT; + default: + WARN_ON_ONCE(1); + /* Should never happen. Treat it as not found. */ + return -ENOENT; } - - return 0; } static void bpf_struct_ops_map_seq_show_elem(struct bpf_map *map, void *key, |