• Steven Rostedt's avatar
    trace: remove deprecated entry->cpu · 1830b52d
    Steven Rostedt authored
    Impact: fix to prevent developers from using entry->cpu
    With the new ring buffer infrastructure, the cpu for the entry is
    implicit with which CPU buffer it is on.
    The original code use to record the current cpu into the generic
    entry header, which can be retrieved by entry->cpu. When the
    ring buffer was introduced, the users were convert to use the
    the cpu number of which cpu ring buffer was in use (this was passed
    to the tracers by the iterator: iter->cpu).
    Unfortunately, the cpu item in the entry structure was never removed.
    This allowed for developers to use it instead of the proper iter->cpu,
    unknowingly, using an uninitialized variable. This was not the fault
    of the developers, since it would seem like the logical place to
    retrieve the cpu identifier.
    This patch removes the cpu item from the entry structure and fixes
    all the users that should have been using iter->cpu.
    Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>