kernel/git/stable/linux.git/Documentation/credentials.txt, branch master

Create Documentation/security/,

2011-05-19T22:59:38+00:00

move LSM-, credentials-, and keys-related files from Documentation/ to Documentation/security/, add Documentation/security/00-INDEX, and update all occurrences of Documentation/ to Documentation/security/.

CRED: Fix __task_cred()'s lockdep check and banner comment

2010-07-29T22:16:18+00:00

Fix __task_cred()'s lockdep check by removing the following validation condition: lockdep_tasklist_lock_is_held() as commit_creds() does not take the tasklist_lock, and nor do most of the functions that call it, so this check is pointless and it can prevent detection of the RCU lock not being held if the tasklist_lock is held. Instead, add the following validation condition: task->exit_state >= 0 to permit the access if the target task is dead and therefore unable to change its own credentials. Fix __task_cred()'s comment to: (1) discard the bit that says that the caller must prevent the target task from being deleted. That shouldn't need saying. (2) Add a comment indicating the result of __task_cred() should not be passed directly to get_cred(), but rather than get_task_cred() should be used instead. Also put a note into the documentation to enforce this point there too. Signed-off-by: David Howells Acked-by: Jiri Olsa Cc: Paul E. McKenney Signed-off-by: Linus Torvalds

CRED: Holding a spinlock does not imply the holding of RCU read lock

2010-04-26T22:49:03+00:00

Change the credentials documentation to make it clear that the RCU read lock must be explicitly held when accessing credentials pointers in some other task than current. Holding a spinlock does not implicitly hold the RCU read lock. Signed-off-by: Serge Hallyn Reviewed-by: Paul E. McKenney Signed-off-by: David Howells Signed-off-by: James Morris

CRED: Documentation

2008-11-13T23:39:26+00:00

Document credentials and the new credentials API. Signed-off-by: David Howells Signed-off-by: James Morris