• Andrew Morton's avatar
    [PATCH] might_sleep() improvements · 5eebb6f2
    Andrew Morton authored
    From: Mitchell Blank Jr <mitch@sfgoth.com>
    
    This patch makes the following improvements to might_sleep():
    
     o Add a "might_sleep_if()" macro for when we might sleep only if some
       condition is met.  It's a bit tidier, and has an unlikely() in it.
    
     o Add might_sleep checks to skb_share_check() and skb_unshare() which
       sometimes need to allocate memory.
    
     o Make all architectures call might_sleep() in both down() and
       down_interruptible().  Before only ppc, ppc64, and i386 did this check.
       (sh did the check on down() but not down_interruptible())
    5eebb6f2
semaphore.h 5.72 KB