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kernel_google_b1c1/lib/kref.c
Eric Dumazet 8b5536bbee [PATCH] kref: avoid an atomic operation in kref_put() 
Avoid an atomic operation in kref_put() when the last reference is
dropped. On most platforms, atomic_read() is a plan read of the counter
and involves no atomic at all.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20 13:42:57 -08:00

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