*参照元 [#a6fe1bf5] #backlinks *説明 [#f102c533] -パス: [[linux-2.6.33/]] -FIXME: これは何? --説明 **引数 [#a7e7386d] - -- **返り値 [#lac31baa] - -- **参考 [#s3c31b83] *実装 [#b32c01fa] .align 5 __irq_usr: usr_entry kuser_cmpxchg_check get_thread_info tsk #ifdef CONFIG_PREEMPT ldr r8, [tsk, #TI_PREEMPT] @ get preempt count add r7, r8, #1 @ increment it str r7, [tsk, #TI_PREEMPT] #endif irq_handler #ifdef CONFIG_PREEMPT ldr r0, [tsk, #TI_PREEMPT] str r8, [tsk, #TI_PREEMPT] teq r0, r7 ARM( strne r0, [r0, -r0] ) THUMB( movne r0, #0 ) THUMB( strne r0, [r0] ) #endif #ifdef CONFIG_TRACE_IRQFLAGS bl trace_hardirqs_on #endif mov why, #0 b ret_to_user UNWIND(.fnend ) ENDPROC(__irq_usr) *コメント [#k289be3b]