[PATCH v2 3/3] splice: fsnotify_access(in), fsnotify_modify(out) on success in tee

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Same logic applies here: this can fill up the pipe, and pollers that rely
on getting IN_MODIFY notifications never wake up.

Fixes: 983652c69199 ("splice: report related fsnotify events")
Link: https://lore.kernel.org/linux-fsdevel/jbyihkyk5dtaohdwjyivambb2gffyjs3dodpofafnkkunxq7bu@jngkdxx65pux/t/#u
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@xxxxxxxxxxxxxxxxxx>
---
 fs/splice.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/splice.c b/fs/splice.c
index a18274209dc1..3234aaa6e957 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1819,6 +1819,11 @@ long do_tee(struct file *in, struct file *out, size_t len, unsigned int flags)
 		}
 	}
 
+	if (ret > 0) {
+		fsnotify_access(in);
+		fsnotify_modify(out);
+	}
+
 	return ret;
 }
 
-- 
2.39.2

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