forked from luck/tmp_suning_uos_patched
820a149705
Currently the IOMMU table's lock protects both the bitmap and access to the hardware's TCE table. Access to the TCE table is synchronized through the bitmap; therefore, only hold the lock while modifying the bitmap. This gives a yummy 10-15% reduction in CPU utilization for netperf on a large SMP machine. Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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boot | ||
crypto | ||
ia32 | ||
kernel | ||
lib | ||
mm | ||
oprofile | ||
pci | ||
vdso | ||
defconfig | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |