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| author | David Vrabel <david.vrabel@citrix.com> | 2013-07-19 15:51:59 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-08-09 11:06:44 -0400 |
| commit | 65a45fa2f640f72757ef00f2bc83f9654d65a62b (patch) | |
| tree | f72ac647de00fcd4cb119816c803a31d05cae846 /arch/x86/xen | |
| parent | 3eeef8f72a9365fe20f2c9d84b0afe60a20788cd (diff) | |
| download | blackbird-obmc-linux-65a45fa2f640f72757ef00f2bc83f9654d65a62b.tar.gz blackbird-obmc-linux-65a45fa2f640f72757ef00f2bc83f9654d65a62b.zip | |
xen/p2m: avoid unneccesary TLB flush in m2p_remove_override()
In m2p_remove_override() when removing the grant map from the kernel
mapping and replacing with a mapping to the original page, the grant
unmap will already have flushed the TLB and it is not necessary to do
it again after updating the mapping.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/p2m.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index 95fb2aa5927e..74672eeac881 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -1003,7 +1003,6 @@ int m2p_remove_override(struct page *page, set_pte_at(&init_mm, address, ptep, pfn_pte(pfn, PAGE_KERNEL)); - __flush_tlb_single(address); kmap_op->host_addr = 0; } } |
