diff options
| author | Martijn Coenen <maco@android.com> | 2018-09-07 16:38:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-14 16:22:48 +0300 |
| commit | b7e6a8961b5d6dd3fc535970e65d497d868bb49f (patch) | |
| tree | 97e6dda19380e653059e478ba9102963132df713 /include/uapi/linux/android | |
| parent | 6b6642dadd685af885367d6e30f18553e2a23b22 (diff) | |
| download | linux-b7e6a8961b5d6dd3fc535970e65d497d868bb49f.tar.xz | |
binder: Add BINDER_GET_NODE_INFO_FOR_REF ioctl.
This allows the context manager to retrieve information about nodes
that it holds a reference to, such as the current number of
references to those nodes.
Such information can for example be used to determine whether the
servicemanager is the only process holding a reference to a node.
This information can then be passed on to the process holding the
node, which can in turn decide whether it wants to shut down to
reduce resource usage.
Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/android')
| -rw-r--r-- | include/uapi/linux/android/binder.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h index bfaec6903b8b..b9ba520f7e4b 100644 --- a/include/uapi/linux/android/binder.h +++ b/include/uapi/linux/android/binder.h @@ -200,6 +200,15 @@ struct binder_node_debug_info { __u32 has_weak_ref; }; +struct binder_node_info_for_ref { + __u32 handle; + __u32 strong_count; + __u32 weak_count; + __u32 reserved1; + __u32 reserved2; + __u32 reserved3; +}; + #define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read) #define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64) #define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32) @@ -208,6 +217,7 @@ struct binder_node_debug_info { #define BINDER_THREAD_EXIT _IOW('b', 8, __s32) #define BINDER_VERSION _IOWR('b', 9, struct binder_version) #define BINDER_GET_NODE_DEBUG_INFO _IOWR('b', 11, struct binder_node_debug_info) +#define BINDER_GET_NODE_INFO_FOR_REF _IOWR('b', 12, struct binder_node_info_for_ref) /* * NOTE: Two special error codes you should check for when calling |