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(parent: 9332fcc) | patch
kstat: modify kstat_irqs_legacy to be variable sized
authorMike Travis <travis@sgi.com>
Sun, 11 Jan 2009 06:24:07 +0000 (22:24 -0800)
committerIngo Molnar <mingo@elte.hu>
Sun, 11 Jan 2009 18:13:42 +0000 (19:13 +0100)
commit542d865bbed4ce1f050f586e53cf1cfadda93766
tree73ed6c9ef7cf7defbcc50a210aafbf1d7d914f7atree | snapshot (tar.gz zip)
parent9332fccdedf8e09448f3b69b624211ae879f6c45commit | diff
kstat: modify kstat_irqs_legacy to be variable sized

Impact: reduce memory usage.

Allocate kstat_irqs_legacy based on nr_cpu_ids to deal with this
memory usage bump when NR_CPUS bumped from 128 to 4096:

     8192   +253952    262144 +3100%  kstat_irqs_legacy(.bss)

This is only when CONFIG_SPARSE_IRQS=y.

Signed-off-by: Mike Travis <travis@sgi.com>
kernel/irq/handle.c diff | blob | blame | history