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binder: frozen notification binder_features flag

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Add a flag to binder_features to indicate that the freeze notification
feature is available.

Signed-off-by: Yu-Ting Tseng <yutingtseng@google.com>
Acked-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20240709070047.4055369-6-yutingtseng@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yu-Ting Tseng 2024-07-09 00:00:49 -07:00 committed by Greg Kroah-Hartman
parent d579b04a52
commit 30b968b002
2 changed files with 9 additions and 0 deletions
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8
drivers/android/binderfs.c
View file

@ -58,6 +58,7 @@ enum binderfs_stats_mode {
struct binder_features {
bool oneway_spam_detection;
bool extended_error;
bool freeze_notification;
};
static const struct constant_table binderfs_param_stats[] = {
@ -74,6 +75,7 @@ static const struct fs_parameter_spec binderfs_fs_parameters[] = {
static struct binder_features binder_features = {
.oneway_spam_detection = true,
.extended_error = true,
.freeze_notification = true,
};
static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb)
@ -608,6 +610,12 @@ static int init_binder_features(struct super_block *sb)
if (IS_ERR(dentry))
return PTR_ERR(dentry);
dentry = binderfs_create_file(dir, "freeze_notification",
&binder_features_fops,
&binder_features.freeze_notification);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
return 0;
}

1
tools/testing/selftests/filesystems/binderfs/binderfs_test.c
View file

@ -65,6 +65,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
static const char * const binder_features[] = {
"oneway_spam_detection",
"extended_error",
"freeze_notification",
};
change_mountns(_metadata);