linux-kernel - [PATCH 4/5] revoke: add documentation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.64.0703111331190.765@sbz-30.cs.Helsinki.FI>
Date:	Sun, 11 Mar 2007 13:31:43 +0200 (EET)
From:	Pekka J Enberg <penberg@...helsinki.fi>
To:	akpm@...ux-foundation.org
cc:	linux-kernel@...r.kernel.org, hch@...radead.org,
	alan@...rguk.ukuu.org.uk
Subject: [PATCH 4/5] revoke: add documentation

From: Pekka Enberg <penberg@...helsinki.fi>

This documents revoke file operation in Documentation/filesystems/vfs.txt.

Acked-by: Alan Cox <alan@...hat.com>
Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
---
 Documentation/filesystems/vfs.txt |    5 +++++
 1 file changed, 5 insertions(+)

Index: uml-2.6/Documentation/filesystems/vfs.txt
===================================================================
--- uml-2.6.orig/Documentation/filesystems/vfs.txt	2007-03-11 13:05:33.000000000 +0200
+++ uml-2.6/Documentation/filesystems/vfs.txt	2007-03-11 13:09:22.000000000 +0200
@@ -732,6 +732,7 @@ struct file_operations {
 int);
 	ssize_t (*splice_read)(struct file *, struct pipe_inode_info *, size_t, unsigned  
 int);
+	int (*revoke)(struct file *);
 };
 
 Again, all methods are called without any locks being held, unless
@@ -805,6 +806,10 @@ otherwise noted.
   splice_read: called by the VFS to splice data from file to a pipe. This
 	       method is used by the splice(2) system call
 
+  revoke: called by revokeat(2) and frevoke(2) system calls to revoke access
+	  to an open file. This method must ensure that all currently blocked
+	  writes are flushed and reads will fail.
+
 Note that the file operations are implemented by the specific
 filesystem in which the inode resides. When opening a device node
 (character or block special) most filesystems will call special
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/