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FROMGIT: 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>

Bug: 363013421
(cherry picked from commit 30b968b002a92870325a5c9d1ce78eba0ce386e7
 git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
 char-misc-next)
Change-Id: Ic26c8ae42d27c6fd8f5daed5eecabd1652e29502
Signed-off-by: Carlos Llamas <cmllamas@google.com>
This commit is contained in:
Yu-Ting Tseng
2024-07-09 00:00:49 -07:00
committed by Treehugger Robot
parent eda0570485
commit 2f43c68d05
2 changed files with 9 additions and 0 deletions
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8
drivers/android/binderfs.c
View File

@@ -60,6 +60,7 @@ enum binderfs_stats_mode {
struct binder_features { struct binder_features {
bool oneway_spam_detection; bool oneway_spam_detection;
bool extended_error; bool extended_error;
bool freeze_notification;
}; };
static const struct constant_table binderfs_param_stats[] = { static const struct constant_table binderfs_param_stats[] = {
@@ -76,6 +77,7 @@ static const struct fs_parameter_spec binderfs_fs_parameters[] = {
static struct binder_features binder_features = { static struct binder_features binder_features = {
.oneway_spam_detection = true, .oneway_spam_detection = true,
.extended_error = true, .extended_error = true,
.freeze_notification = true,
}; };
static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb) static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb)
@@ -610,6 +612,12 @@ static int init_binder_features(struct super_block *sb)
if (IS_ERR(dentry)) if (IS_ERR(dentry))
return PTR_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; 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[] = { static const char * const binder_features[] = {
"oneway_spam_detection", "oneway_spam_detection",
"extended_error", "extended_error",
"freeze_notification",
}; };
change_mountns(_metadata); change_mountns(_metadata);