[PATCH] lockdep: annotate enable_in_hardirq()

Make use of local_irq_enable_in_hardirq() API to annotate places that enable
hardirqs in hardirq context.

Has no effect on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7 files changed, 9 insertions, 9 deletions

diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index a76e93146585..2dd928a84645 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -107,7 +107,7 @@ int nmi_active;
 static __init void nmi_cpu_busy(void *data)
 {
         volatile int *endflag = data;
-        local_irq_enable();
+        local_irq_enable_in_hardirq();
         /* Intentionally don't use cpu_relax here. This is
            to make sure that the performance counter really ticks,
            even if there is a simulator or similar that catches the
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index 476c1472fc07..5baa0c726e97 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -127,7 +127,7 @@ void __cpuinit nmi_watchdog_default(void)
 static __init void nmi_cpu_busy(void *data)
 {
         volatile int *endflag = data;
-        local_irq_enable();
+        local_irq_enable_in_hardirq();
         /* Intentionally don't use cpu_relax here. This is
            to make sure that the performance counter really ticks,
            even if there is a simulator or similar that catches the
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 6ca3476d02c7..adbe9f76a505 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -838,7 +838,7 @@ static ide_startstop_t idefloppy_pc_intr (ide_drive_t *drive)
                         "transferred\n", pc->actually_transferred);
                 clear_bit(PC_DMA_IN_PROGRESS, &pc->flags);
 
-                local_irq_enable();
+                local_irq_enable_in_hardirq();
 
                 if (status.b.check || test_bit(PC_DMA_ERROR, &pc->flags)) {
                         /* Error detected */
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 7dba9992ad30..d6bf1ec96322 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -693,7 +693,7 @@ static ide_startstop_t drive_cmd_intr (ide_drive_t *drive)
         u8 stat = hwif->INB(IDE_STATUS_REG);
         int retries = 10;
 
-        local_irq_enable();
+        local_irq_enable_in_hardirq();
         if ((stat & DRQ_STAT) && args && args[3]) {
                 u8 io_32bit = drive->io_32bit;
                 drive->io_32bit = 0;
@@ -1286,7 +1286,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
                 if (masked_irq != IDE_NO_IRQ && hwif->irq != masked_irq)
                         disable_irq_nosync(hwif->irq);
                 spin_unlock(&ide_lock);
-                local_irq_enable();
+                local_irq_enable_in_hardirq();
                         /* allow other IRQs while we start this request */
                 startstop = start_request(drive, rq);
                 spin_lock_irq(&ide_lock);
@@ -1631,7 +1631,7 @@ irqreturn_t ide_intr (int irq, void *dev_id, struct pt_regs *regs)
         spin_unlock(&ide_lock);
 
         if (drive->unmask)
-                local_irq_enable();
+                local_irq_enable_in_hardirq();
         /* service this interrupt, may set handler for next interrupt */
         startstop = handler(drive);
         spin_lock_irq(&ide_lock);
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 04547eb0833f..97a9244312fc 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -222,7 +222,7 @@ ide_startstop_t task_no_data_intr (ide_drive_t *drive)
         ide_hwif_t *hwif        = HWIF(drive);
         u8 stat;
 
-        local_irq_enable();
+        local_irq_enable_in_hardirq();
         if (!OK_STAT(stat = hwif->INB(IDE_STATUS_REG),READY_STAT,BAD_STAT)) {
                 return ide_error(drive, "task_no_data_intr", stat);
                 /* calls ide_end_drive_cmd */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 285316c836b5..dc7abef10965 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1359,7 +1359,7 @@ extern struct semaphore ide_cfg_sem;
  * ide_drive_t->hwif: constant, no locking
  */
 
-#define local_irq_set(flags)    do { local_save_flags((flags)); local_irq_enable(); } while (0)
+#define local_irq_set(flags)    do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0)
 
 extern struct bus_type ide_bus_type;
 
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index a7b497ee919e..fc4e906aedbd 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -132,7 +132,7 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
         handle_dynamic_tick(action);
 
         if (!(action->flags & IRQF_DISABLED))
-                local_irq_enable();
+                local_irq_enable_in_hardirq();
 
         do {
                 ret = action->handler(irq, action->dev_id, regs);