The patch titled
revoke: add documentation
has been added to the -mm tree. Its filename is
revoke-add-documentation.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: revoke: add documentation
From: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
This documents revoke file operation in Documentation/filesystems/vfs.txt.
Acked-by: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Michael Kerrisk <mtk-manpages@xxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/filesystems/vfs.txt | 5 +++++
1 file changed, 5 insertions(+)
diff -puN Documentation/filesystems/vfs.txt~revoke-add-documentation Documentation/filesystems/vfs.txt
--- a/Documentation/filesystems/vfs.txt~revoke-add-documentation
+++ a/Documentation/filesystems/vfs.txt
@@ -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
_
Patches currently in -mm which might be from penberg@xxxxxxxxxxxxxx are
slab-introduce-krealloc.patch
slab-introduce-krealloc-fix.patch
unionfs-fix-slab-abuses-with-krealloc.patch
slab-ensure-cache_alloc_refill-terminates.patch
module-use-krealloc.patch
slab-use-cpu_lock_.patch
revoke-special-mmap-handling.patch
revoke-core-code.patch
revoke-support-for-ext2-and-ext3.patch
revoke-add-documentation.patch
revoke-wire-up-i386-system-calls.patch
slab-leaks3-default-y.patch
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