linux-kernel - [PATCH 02/13] vfs: export do_splice

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Date:	Fri, 23 May 2014 11:43:32 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	viro@...IV.linux.org.uk, torvalds@...ux-foundation.org
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	hch@...radead.org, akpm@...ux-foundation.org, apw@...onical.com,
	nbd@...nwrt.org, neilb@...e.de, jordipujolp@...il.com,
	ezk@....cs.sunysb.edu, dhowells@...hat.com, sedat.dilek@...il.com,
	hooanon05@...oo.co.jp, mszeredi@...e.cz
Subject: [PATCH 02/13] vfs: export do_splice_direct() to modules

From: Miklos Szeredi <mszeredi@...e.cz>

Export do_splice_direct() to modules.  Needed by overlay filesystem.

Signed-off-by: Miklos Szeredi <mszeredi@...e.cz>
---
 fs/internal.h      | 6 ------
 fs/splice.c        | 1 +
 include/linux/fs.h | 3 +++
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/fs/internal.h b/fs/internal.h
index 465742407466..873cdf544d54 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -135,12 +135,6 @@ extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *);
 extern int rw_verify_area(int, struct file *, const loff_t *, size_t);
 
 /*
- * splice.c
- */
-extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
-		loff_t *opos, size_t len, unsigned int flags);
-
-/*
  * pipe.c
  */
 extern const struct file_operations pipefifo_fops;
diff --git a/fs/splice.c b/fs/splice.c
index 9bc07d2b53cf..fb1094bbe5af 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1319,6 +1319,7 @@ long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
 
 	return ret;
 }
+EXPORT_SYMBOL(do_splice_direct);
 
 static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe,
 			       struct pipe_inode_info *opipe,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d38875d70db2..90463dfd77d1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2433,6 +2433,9 @@ extern ssize_t generic_file_splice_write(struct pipe_inode_info *,
 		struct file *, loff_t *, size_t, unsigned int);
 extern ssize_t generic_splice_sendpage(struct pipe_inode_info *pipe,
 		struct file *out, loff_t *, size_t len, unsigned int flags);
+extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
+		loff_t *opos, size_t len, unsigned int flags);
+
 
 extern void
 file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping);
-- 
1.8.1.4

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