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| author | Carlos Llamas <cmllamas@google.com> | 2022-04-29 23:56:42 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-09 15:43:24 +0200 |
| commit | d23386ed7019d50164fa2066aae8656097a02425 (patch) | |
| tree | 36cef5b0a3b0596d668d7a4c65a42355e01289f0 | |
| parent | bd32889e841c12533d09a1bd02bba932baa9ed8f (diff) | |
| download | lwn-d23386ed7019d50164fa2066aae8656097a02425.tar.gz lwn-d23386ed7019d50164fa2066aae8656097a02425.zip | |
binderfs: add extended_error feature entry
Add extended_error to the binderfs feature list, to help userspace
determine whether the BINDER_GET_EXTENDED_ERROR ioctl is supported by
the binder driver.
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220429235644.697372-4-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/android/binderfs.c | 8 | ||||
| -rw-r--r-- | tools/testing/selftests/filesystems/binderfs/binderfs_test.c | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c index e3605cdd4335..6c5e94f6cb3a 100644 --- a/drivers/android/binderfs.c +++ b/drivers/android/binderfs.c @@ -60,6 +60,7 @@ enum binderfs_stats_mode { struct binder_features { bool oneway_spam_detection; + bool extended_error; }; static const struct constant_table binderfs_param_stats[] = { @@ -75,6 +76,7 @@ static const struct fs_parameter_spec binderfs_fs_parameters[] = { static struct binder_features binder_features = { .oneway_spam_detection = true, + .extended_error = true, }; static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb) @@ -615,6 +617,12 @@ static int init_binder_features(struct super_block *sb) if (IS_ERR(dentry)) return PTR_ERR(dentry); + dentry = binderfs_create_file(dir, "extended_error", + &binder_features_fops, + &binder_features.extended_error); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + return 0; } diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c index 0315955ff0f4..9409bb136d95 100644 --- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c +++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c @@ -64,6 +64,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata) device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME]; static const char * const binder_features[] = { "oneway_spam_detection", + "extended_error", }; change_mountns(_metadata); |