ANDROID: binder: show high watermark of alloc->pages.
Show the high watermark of the index into the alloc->pages
array, to facilitate sizing the buffer on a per-process
basis.
Change-Id: I2b40cd16628e0ee45216c51dc9b3c5b0c862032e
Signed-off-by: Martijn Coenen <maco@android.com>
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 3ad1bcf..1c76daa 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -281,6 +281,9 @@
goto err_vm_insert_page_failed;
}
+ if (index + 1 > alloc->pages_high)
+ alloc->pages_high = index + 1;
+
trace_binder_alloc_page_end(alloc, index);
/* vm_insert_page does not seem to increment the refcount */
}
@@ -854,6 +857,7 @@
}
mutex_unlock(&alloc->mutex);
seq_printf(m, " pages: %d:%d:%d\n", active, lru, free);
+ seq_printf(m, " pages high watermark: %zu\n", alloc->pages_high);
}
/**