Messages in this thread Patch in this message | | | Date | Sun, 11 Mar 2007 13:31:43 +0200 (EET) | From | Pekka J Enberg <> | Subject | [PATCH 4/5] revoke: add documentation |
| |
From: Pekka Enberg <penberg@cs.helsinki.fi>
This documents revoke file operation in Documentation/filesystems/vfs.txt.
Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Pekka Enberg <penberg@cs.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@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |