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authorDavid Vrabel <david.vrabel@citrix.com>2012-07-09 11:39:07 +0100
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-07-19 15:51:45 -0400
commit59290362da587ce2e6d2f4a7f85e362fa2d7fd39 (patch)
treef111491ff440fa50cc7d0c7d33496e7c4a1c48ed /arch/x86
parent66a27dde9ae96e35278983f2e59bea04eb714cd0 (diff)
xen/x86: add desc_equal() to compare GDT descriptors
Signed-off-by: David Vrabel <david.vrabel@citrix.com> [v1: Moving it to the Xen file] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/xen/enlighten.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 0c1ab43f6672..225ffdc3c4ca 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -539,6 +539,12 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
BUG();
}
+static inline bool desc_equal(const struct desc_struct *d1,
+ const struct desc_struct *d2)
+{
+ return d1->a == d2->a && d1->b == d2->b;
+}
+
static void load_TLS_descriptor(struct thread_struct *t,
unsigned int cpu, unsigned int i)
{