linux-kernel - [PATCH RFC 1/3] pipe: make is_packetized() non-static and declare in pipe_fs

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Message-ID: <20151215172901.16355.80770.stgit@localhost.localdomain>
Date:	Tue, 15 Dec 2015 21:29:01 +0400
From:	Stanislav Kinsburskiy <skinsbursky@...tuozzo.com>
To:	linux-fsdevel@...r.kernel.org, viro@...iv.linux.org.uk,
	linux-kernel@...r.kernel.org
Cc:	criu@...nvz.org, skinsbursky@...tuozzo.com
Subject: [PATCH RFC 1/3] pipe: make is_packetized() non-static and declare
 in pipe_fs_i.h

With introduction of packetized pipe mode, represented by O_DIRECT flag,
splice stopped working correctly with a pipe in this mode.
To be able to fix them, this helper have to exposed.

Signed-off-by: Stanislav Kinsburskiy <skinsbursky@...tuozzo.com>
---
 fs/pipe.c                 |    2 +-
 include/linux/pipe_fs_i.h |    2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index 42cf8dd..645d142 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -329,7 +329,7 @@ pipe_read(struct kiocb *iocb, struct iov_iter *to)
 	return ret;
 }
 
-static inline int is_packetized(struct file *file)
+int is_packetized(struct file *file)
 {
 	return (file->f_flags & O_DIRECT) != 0;
 }
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index eb8b8ac..9fdaf8f 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -146,4 +146,6 @@ struct pipe_inode_info *get_pipe_info(struct file *file);
 
 int create_pipe_files(struct file **, int);
 
+int is_packetized(struct file *file);
+
 #endif

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