1 files changed, 63 insertions, 0 deletions

diff --git a/arch/i386/lib/semaphore.S b/arch/i386/lib/semaphore.S
index e16ff1696390..01f80b5c45d2 100644
--- a/arch/i386/lib/semaphore.S
+++ b/arch/i386/lib/semaphore.S
@@ -152,3 +152,66 @@ ENTRY(__read_lock_failed)
         END(__read_lock_failed)
 
 #endif
+
+/* Fix up special calling conventions */
+ENTRY(call_rwsem_down_read_failed)
+        CFI_STARTPROC
+        push %ecx
+        CFI_ADJUST_CFA_OFFSET 4
+        CFI_REL_OFFSET ecx,0
+        push %edx
+        CFI_ADJUST_CFA_OFFSET 4
+        CFI_REL_OFFSET edx,0
+        call rwsem_down_read_failed
+        pop %edx
+        CFI_ADJUST_CFA_OFFSET -4
+        pop %ecx
+        CFI_ADJUST_CFA_OFFSET -4
+        ret
+        CFI_ENDPROC
+        END(call_rwsem_down_read_failed)
+
+ENTRY(call_rwsem_down_write_failed)
+        CFI_STARTPROC
+        push %ecx
+        CFI_ADJUST_CFA_OFFSET 4
+        CFI_REL_OFFSET ecx,0
+        calll rwsem_down_write_failed
+        pop %ecx
+        CFI_ADJUST_CFA_OFFSET -4
+        ret
+        CFI_ENDPROC
+        END(call_rwsem_down_write_failed)
+
+ENTRY(call_rwsem_wake)
+        CFI_STARTPROC
+        decw %dx    /* do nothing if still outstanding active readers */
+        jnz 1f
+        push %ecx
+        CFI_ADJUST_CFA_OFFSET 4
+        CFI_REL_OFFSET ecx,0
+        call rwsem_wake
+        pop %ecx
+        CFI_ADJUST_CFA_OFFSET -4
+1:      ret
+        CFI_ENDPROC
+        END(call_rwsem_wake)
+
+/* Fix up special calling conventions */
+ENTRY(call_rwsem_downgrade_wake)
+        CFI_STARTPROC
+        push %ecx
+        CFI_ADJUST_CFA_OFFSET 4
+        CFI_REL_OFFSET ecx,0
+        push %edx
+        CFI_ADJUST_CFA_OFFSET 4
+        CFI_REL_OFFSET edx,0
+        call rwsem_downgrade_wake
+        pop %edx
+        CFI_ADJUST_CFA_OFFSET -4
+        pop %ecx
+        CFI_ADJUST_CFA_OFFSET -4
+        ret
+        CFI_ENDPROC
+        END(call_rwsem_downgrade_wake)
+