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| author | Eric W. Biederman <ebiederm@xmission.com> | 2020-06-26 00:23:22 +0200 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2020-07-07 18:58:57 +0200 |
| commit | e80eb1dc868bc1ed93602389d54b27f170ca770c (patch) | |
| tree | 79fa3fd78b5dcdde8b08eb4d7f0d4c7b14a46ad9 /include | |
| parent | exit: Factor thread_group_exited out of pidfd_poll (diff) | |
| download | linux-e80eb1dc868bc1ed93602389d54b27f170ca770c.tar.xz linux-e80eb1dc868bc1ed93602389d54b27f170ca770c.zip | |
bpfilter: Take advantage of the facilities of struct pid
Instead of relying on the exit_umh cleanup callback use the fact a
struct pid can be tested to see if a process still exists, and that
struct pid has a wait queue that notifies when the process dies.
v1: https://lkml.kernel.org/r/87h7uydlu9.fsf_-_@x220.int.ebiederm.org
v2: https://lkml.kernel.org/r/874kqt4owu.fsf_-_@x220.int.ebiederm.org
Link: https://lkml.kernel.org/r/20200702164140.4468-14-ebiederm@xmission.com
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpfilter.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/bpfilter.h b/include/linux/bpfilter.h index ec9972d822e0..9b114c718a76 100644 --- a/include/linux/bpfilter.h +++ b/include/linux/bpfilter.h @@ -10,6 +10,8 @@ int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char __user *optval, unsigned int optlen); int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval, int __user *optlen); +void bpfilter_umh_cleanup(struct umd_info *info); + struct bpfilter_umh_ops { struct umd_info info; /* since ip_getsockopt() can run in parallel, serialize access to umh */ @@ -18,7 +20,6 @@ struct bpfilter_umh_ops { char __user *optval, unsigned int optlen, bool is_set); int (*start)(void); - bool stop; }; extern struct bpfilter_umh_ops bpfilter_ops; #endif |