From 91ac033d8377552d3654501a105ab55bf546940e Mon Sep 17 00:00:00 2001 From: Marc Dionne Date: Thu, 23 Apr 2009 11:21:55 +0100 Subject: [PATCH] CacheFiles: Fix the documentation to use the correct credential pointer names Adjust the CacheFiles documentation to use the correct names of the credential pointers in task_struct. The documentation was using names from the old versions of the credentials patches. Signed-off-by: Marc Dionne Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- Documentation/filesystems/caching/cachefiles.txt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/filesystems/caching/cachefiles.txt b/Documentation/filesystems/caching/cachefiles.txt index c78a49b7bba..748a1ae49e1 100644 --- a/Documentation/filesystems/caching/cachefiles.txt +++ b/Documentation/filesystems/caching/cachefiles.txt @@ -407,7 +407,7 @@ A NOTE ON SECURITY ================== CacheFiles makes use of the split security in the task_struct. It allocates -its own task_security structure, and redirects current->act_as to point to it +its own task_security structure, and redirects current->cred to point to it when it acts on behalf of another process, in that process's context. The reason it does this is that it calls vfs_mkdir() and suchlike rather than @@ -429,9 +429,9 @@ This means it may lose signals or ptrace events for example, and affects what the process looks like in /proc. So CacheFiles makes use of a logical split in the security between the -objective security (task->sec) and the subjective security (task->act_as). The -objective security holds the intrinsic security properties of a process and is -never overridden. This is what appears in /proc, and is what is used when a +objective security (task->real_cred) and the subjective security (task->cred). +The objective security holds the intrinsic security properties of a process and +is never overridden. This is what appears in /proc, and is what is used when a process is the target of an operation by some other process (SIGKILL for example).