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authorNitin Gupta <nitin.m.gupta@oracle.com>2016-03-30 11:17:13 -0700
committerDavid S. Miller <davem@davemloft.net>2016-05-20 18:44:27 -0700
commit24e49ee3d76b70853a96520e46b8837e5eae65b2 (patch)
tree4893dd3011dc7a4db11082ce6953d1e1d2c13803 /arch/sparc/kernel
parentb1ac6b7b4061f6c92bacf6938f94fb61b2fbf7f3 (diff)
downloadlinux-24e49ee3d76b70853a96520e46b8837e5eae65b2.tar.gz
sparc64: Reduce TLB flushes during hugepte changes
During hugepage map/unmap, TSB and TLB flushes are currently issued at every PAGE_SIZE'd boundary which is unnecessary. We now issue the flush at REAL_HPAGE_SIZE boundaries only. Without this patch workloads which unmap a large hugepage backed VMA region get CPU lockups due to excessive TLB flush calls. Orabug: 22365539, 22643230, 22995196 Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel')
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