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authorChris Metcalf <cmetcalf@tilera.com>2012-03-29 14:02:52 -0400
committerChris Metcalf <cmetcalf@tilera.com>2012-04-02 12:12:38 -0400
commitb287f69676a34a9fc341de4d79a9c74e1959dec6 (patch)
tree1db5f8cb448634f4925caa70275261314aa7720a
parentcbe224705e573cead57c4d4bed0c91efb564a344 (diff)
downloadop-kernel-dev-b287f69676a34a9fc341de4d79a9c74e1959dec6.zip
op-kernel-dev-b287f69676a34a9fc341de4d79a9c74e1959dec6.tar.gz
arch/tile: avoid false corrupt frame warning in early boot
With lockstat we can end up trying to get a backtrace before "high_memory" is initialized, so don't worry about range testing if it is zero. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
-rw-r--r--arch/tile/kernel/process.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index ee01b1c..2d5ef61 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -286,7 +286,7 @@ struct task_struct *validate_current(void)
static struct task_struct corrupt = { .comm = "<corrupt>" };
struct task_struct *tsk = current;
if (unlikely((unsigned long)tsk < PAGE_OFFSET ||
- (void *)tsk > high_memory ||
+ (high_memory && (void *)tsk > high_memory) ||
((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) {
pr_err("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer);
tsk = &corrupt;
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