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| author |   Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2009-04-24 00:50:27 -0700 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2009-06-17 13:21:26 -0700 |
| commit | 16d9dbf0c2bd167fdd942b83592d59696c7b73bd (patch) | |
| tree | 8d650eb7a107e1e781d2612f9109fdbf923c5cc7 /arch/x86/mm/fault.c | |
| parent | x86-32: make sure clts is batched during context switch (diff) | |
| download | linux-dev-16d9dbf0c2bd167fdd942b83592d59696c7b73bd.tar.xz linux-dev-16d9dbf0c2bd167fdd942b83592d59696c7b73bd.zip | |
x86-64: move unlazy_fpu() into lazy cpu state part of context switch
Make sure that unlazy_fpu()'s stts gets batched along with the other
cpu state changes during context switch. (32-bit already does this.)
This makes sure it gets batched when running paravirtualized.
[ Impact: optimise paravirtual FPU context switch ]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/x86/mm/fault.c')
0 files changed, 0 insertions, 0 deletions