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    Subject[TOMOYO #5 01/18] Add struct vfsmount to struct task_struct.
    This patch allows VFS wrapper functions associate "struct vfsmount"
    with "struct task_struct" so that LSM hooks can calculate
    pathname of given "struct dentry".

    Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
    ---
    include/linux/init_task.h | 1 +
    include/linux/sched.h | 2 ++
    2 files changed, 3 insertions(+)

    --- linux-2.6-mm.orig/include/linux/init_task.h 2007-11-14 15:12:03.000000000 +0900
    +++ linux-2.6-mm/include/linux/init_task.h 2007-11-14 15:15:33.000000000 +0900
    @@ -173,6 +173,7 @@ extern struct group_info init_groups;
    .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \
    INIT_TRACE_IRQFLAGS \
    INIT_LOCKDEP \
    + .last_vfsmount = NULL, \
    }


    --- linux-2.6-mm.orig/include/linux/sched.h 2007-11-14 15:14:35.000000000 +0900
    +++ linux-2.6-mm/include/linux/sched.h 2007-11-14 15:15:33.000000000 +0900
    @@ -1191,6 +1191,8 @@ struct task_struct {
    int make_it_fail;
    #endif
    struct prop_local_single dirties;
    + /* vfsmount info for LSM hooks. */
    + struct vfsmount *last_vfsmount;
    };

    /*
    --
    -
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