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    [PATCH] drivers: wait for threaded probes between initcall levels · 735a7ffb
    Andrew Morton 提交于
    The multithreaded-probing code has a problem: after one initcall level (eg,
    core_initcall) has been processed, we will then start processing the next
    level (postcore_initcall) while the kernel threads which are handling
    core_initcall are still executing.  This breaks the guarantees which the
    layered initcalls previously gave us.
    
    IOW, we want to be multithreaded _within_ an initcall level, but not between
    different levels.
    
    Fix that up by causing the probing code to wait for all outstanding probes at
    one level to complete before we start processing the next level.
    
    Cc: Greg KH <greg@kroah.com>
    Signed-off-by: NAndrew Morton <akpm@osdl.org>
    Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
    735a7ffb
dd.c 9.3 KB