s390/irq: use hlists for external interrupt handler array
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Tue, 3 Sep 2013 12:12:07 +0000 (14:12 +0200)
committerHeiko Carstens <heiko.carstens@de.ibm.com>
Wed, 4 Sep 2013 15:19:10 +0000 (17:19 +0200)
Use hlists for the hashed array of external interrupt handlers.
Reduces the size of the array by 50% (2KB).

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

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