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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 /arch/tile
parentcbe224705e573cead57c4d4bed0c91efb564a344 (diff)
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>
Diffstat (limited to 'arch/tile')
-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 ee01b1c683e4..2d5ef617bb39 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -286,7 +286,7 @@ struct task_struct *validate_current(void)
286 static struct task_struct corrupt = { .comm = "<corrupt>" }; 286 static struct task_struct corrupt = { .comm = "<corrupt>" };
287 struct task_struct *tsk = current; 287 struct task_struct *tsk = current;
288 if (unlikely((unsigned long)tsk < PAGE_OFFSET || 288 if (unlikely((unsigned long)tsk < PAGE_OFFSET ||
289 (void *)tsk > high_memory || 289 (high_memory && (void *)tsk > high_memory) ||
290 ((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) { 290 ((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) {
291 pr_err("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer); 291 pr_err("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer);
292 tsk = &corrupt; 292 tsk = &corrupt;