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rust_binder: synchronize Rust Binder stats with freeze commands

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Rust Binder stats use BC_COUNT and BR_COUNT to size the command and
return counters, and use event string tables when printing debug
statistics.

The Binder protocol includes freeze-related commands and return codes,
but the Rust Binder statistics code was not updated to cover them. As a
result, those commands and return codes are not accounted for or printed
by the stats debug output.

Update the counts and event string tables so these commands and return
codes are included in the debug statistics output.

Fixes: eafedbc7c0 ("rust_binder: add Rust Binder driver")
Cc: stable <stable@kernel.org>
Acked-by: Carlos Llamas <cmllamas@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Keshav Verma <iganschel@gmail.com>
Link: https://patch.msgid.link/20260615211743.734-1-iganschel@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Keshav Verma
2026-06-16 02:47:43 +05:30
committed by Greg Kroah-Hartman
parent b34826e55a
commit eb1645bf10
2 changed files with 8 additions and 3 deletions
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7
drivers/android/binder/rust_binder_events.c
View File

@@ -28,6 +28,9 @@ const char * const binder_command_strings[] = {
"BC_DEAD_BINDER_DONE",
"BC_TRANSACTION_SG",
"BC_REPLY_SG",
"BC_REQUEST_FREEZE_NOTIFICATION",
"BC_CLEAR_FREEZE_NOTIFICATION",
"BC_FREEZE_NOTIFICATION_DONE",
};
const char * const binder_return_strings[] = {
@@ -51,7 +54,9 @@ const char * const binder_return_strings[] = {
"BR_FAILED_REPLY",
"BR_FROZEN_REPLY",
"BR_ONEWAY_SPAM_SUSPECT",
"BR_TRANSACTION_PENDING_FROZEN"
"BR_TRANSACTION_PENDING_FROZEN",
"BR_FROZEN_BINDER",
"BR_CLEAR_FREEZE_NOTIFICATION_DONE",
};
#define CREATE_TRACE_POINTS

4
drivers/android/binder/stats.rs
View File

@@ -8,8 +8,8 @@
use kernel::sync::atomic::{ordering::Relaxed, Atomic};
use kernel::{ioctl::_IOC_NR, seq_file::SeqFile, seq_print};
const BC_COUNT: usize = _IOC_NR(BC_REPLY_SG) as usize + 1;
const BR_COUNT: usize = _IOC_NR(BR_TRANSACTION_PENDING_FROZEN) as usize + 1;
const BC_COUNT: usize = _IOC_NR(BC_FREEZE_NOTIFICATION_DONE) as usize + 1;
const BR_COUNT: usize = _IOC_NR(BR_CLEAR_FREEZE_NOTIFICATION_DONE) as usize + 1;
pub(crate) static GLOBAL_STATS: BinderStats = BinderStats::new();