linux-kernel - [PATCH] fs/pipe: Delete unused do_pipe

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Message-Id: <20230111030547.7730-1-zhouchengming@bytedance.com>
Date:   Wed, 11 Jan 2023 11:05:47 +0800
From:   Chengming Zhou <zhouchengming@...edance.com>
To:     viro@...iv.linux.org.uk
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chengming Zhou <zhouchengming@...edance.com>
Subject: [PATCH] fs/pipe: Delete unused do_pipe_flags()

It looks like do_pipe_flags() is not used anywhere and not exported
too, so delete it. No any functional changes.

Signed-off-by: Chengming Zhou <zhouchengming@...edance.com>
---
 fs/pipe.c          | 11 -----------
 include/linux/fs.h |  1 -
 2 files changed, 12 deletions(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index 42c7ff41c2db..9b6d7b6658f1 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -986,17 +986,6 @@ static int __do_pipe_flags(int *fd, struct file **files, int flags)
 	return error;
 }
 
-int do_pipe_flags(int *fd, int flags)
-{
-	struct file *files[2];
-	int error = __do_pipe_flags(fd, files, flags);
-	if (!error) {
-		fd_install(fd[0], files[0]);
-		fd_install(fd[1], files[1]);
-	}
-	return error;
-}
-
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way Unix traditionally does this, though.
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 452700c5fa1d..0b8fe4243f48 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3014,7 +3014,6 @@ static inline void i_readcount_inc(struct inode *inode)
 	return;
 }
 #endif
-extern int do_pipe_flags(int *, int);
 
 extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
 ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos);
-- 
2.37.2