From ba3ae093ed16b76e2a787ae1fb5824ee8d0a6f7f Mon Sep 17 00:00:00 2001 From: "Sarang S. Dalal" Date: Tue, 23 Jan 2018 00:58:08 +0100 Subject: [PATCH] add comment to explain kernel_read --- kernel/ashmem/ashmem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/ashmem/ashmem.c b/kernel/ashmem/ashmem.c index dd15960..1831493 100644 --- a/kernel/ashmem/ashmem.c +++ b/kernel/ashmem/ashmem.c @@ -312,6 +312,8 @@ static ssize_t ashmem_read(struct file *file, char __user *buf, * once asma->file is set it will never be changed, and will not * be destroyed until all references to the file are dropped and * ashmem_release is called. + * + * kernel_read supersedes vfs_read from kernel version 3.9 */ #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0) ret = __vfs_read(asma->file, buf, len, pos);