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authorMartijn Coenen <maco@android.com>2017-11-13 12:06:56 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-28 18:33:03 +0300
commit8d9a3ab6c17e9473ab31484da382914537e60152 (patch)
tree02c6929f87b150c243e947359ec90ba857a42962 /drivers/android/binder_alloc.c
parent0f5eb1545907edeea7672a9c1652c4231150ff22 (diff)
downloadlinux-8d9a3ab6c17e9473ab31484da382914537e60152.tar.xz
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. Signed-off-by: Martijn Coenen <maco@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android/binder_alloc.c')
-rw-r--r--drivers/android/binder_alloc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 6f6f745605af..0dba2308125c 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -281,6 +281,9 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
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 */
}
@@ -853,6 +856,7 @@ void binder_alloc_print_pages(struct seq_file *m,
}
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);
}
/**