linux-kernel - [PATCH] vfs: Update file

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Date:	Thu, 30 Jan 2014 13:07:42 -0500
From:	Richard Yao <ryao@...too.org>
To:	Rob Landley <rob@...dley.net>
Cc:	Al Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Jeff Layton <jlayton@...hat.com>,
	Lukas Czerner <lczerner@...hat.com>,
	Miklos Szeredi <mszeredi@...e.cz>,
	Linux Documentation Mailing List <linux-doc@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Gentoo Kernel Team <kernel@...too.org>,
	Matthew Thode <mthode@...ode.org>,
	Richard Yao <ryao@...too.org>
Subject: [PATCH] vfs: Update file_operations documentation

->readv, ->writev and ->sendfile have been removed while ->show_fdinfo
has been added. The documentation should reflect this.

Signed-off-by: Richard Yao <ryao@...too.org>
---
 Documentation/filesystems/vfs.txt | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index deb48b5..c53784c 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -782,7 +782,7 @@ struct file_operations
 ----------------------
 
 This describes how the VFS can manipulate an open file. As of kernel
-3.5, the following members are defined:
+3.12, the following members are defined:
 
 struct file_operations {
 	struct module *owner;
@@ -803,9 +803,6 @@ struct file_operations {
 	int (*aio_fsync) (struct kiocb *, int datasync);
 	int (*fasync) (int, struct file *, int);
 	int (*lock) (struct file *, int, struct file_lock *);
-	ssize_t (*readv) (struct file *, const struct iovec *, unsigned long, loff_t *);
-	ssize_t (*writev) (struct file *, const struct iovec *, unsigned long, loff_t *);
-	ssize_t (*sendfile) (struct file *, loff_t *, size_t, read_actor_t, void *);
 	ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
 	unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 	int (*check_flags)(int);
@@ -814,6 +811,7 @@ struct file_operations {
 	ssize_t (*splice_read)(struct file *, struct pipe_inode_info *, size_t, unsigned int);
 	int (*setlease)(struct file *, long arg, struct file_lock **);
 	long (*fallocate)(struct file *, int mode, loff_t offset, loff_t len);
+	int (*show_fdinfo)(struct seq_file *m, struct file *f);
 };
 
 Again, all methods are called without any locks being held, unless
@@ -864,12 +862,6 @@ otherwise noted.
   lock: called by the fcntl(2) system call for F_GETLK, F_SETLK, and F_SETLKW
   	commands
 
-  readv: called by the readv(2) system call
-
-  writev: called by the writev(2) system call
-
-  sendfile: called by the sendfile(2) system call
-
   get_unmapped_area: called by the mmap(2) system call
 
   check_flags: called by the fcntl(2) system call for F_SETFL command
-- 
1.8.3.2

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