netdev - [RFC v2 03/13] eventfd: Increase the recursion depth of eventfd

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Message-Id: <20201222145221.711-4-xieyongji@bytedance.com>
Date:   Tue, 22 Dec 2020 22:52:11 +0800
From:   Xie Yongji <xieyongji@...edance.com>
To:     mst@...hat.com, jasowang@...hat.com, stefanha@...hat.com,
        sgarzare@...hat.com, parav@...dia.com, akpm@...ux-foundation.org,
        rdunlap@...radead.org, willy@...radead.org,
        viro@...iv.linux.org.uk, axboe@...nel.dk, bcrl@...ck.org,
        corbet@....net
Cc:     virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        kvm@...r.kernel.org, linux-aio@...ck.org,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org
Subject: [RFC v2 03/13] eventfd: Increase the recursion depth of eventfd_signal()

Increase the recursion depth of eventfd_signal() to 1. This
will be used in VDUSE case later.

Signed-off-by: Xie Yongji <xieyongji@...edance.com>
---
 fs/eventfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/eventfd.c b/fs/eventfd.c
index 2df24f9bada3..478cdc175949 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -25,7 +25,7 @@
 #include <linux/idr.h>
 #include <linux/uio.h>
 
-#define EVENTFD_WAKE_DEPTH 0
+#define EVENTFD_WAKE_DEPTH 1
 
 DEFINE_PER_CPU(int, eventfd_wake_count);
 
-- 
2.11.0