Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ef29888ea8e1fdc499e995260195b66fc91d2728
Commit: ef29888ea8e1fdc499e995260195b66fc91d2728
Parent: c283f5dbe31920ca70b80a594a97bfaa2a28be13
Author: Matthias Kaehlcke <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 9 23:17:55 2007 +0200
Committer: Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
CommitDate: Mon Jul 9 23:17:55 2007 +0200
ide: use mutex instead of ide_cfg_sem semaphore in IDE driver
The IDE driver uses a semaphore as mutex.
Use the mutex API instead of the (binary) semaphore.
Signed-off-by: Matthias Kaehlcke <[EMAIL PROTECTED]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
---
drivers/ide/ide-probe.c | 6 +++---
drivers/ide/ide.c | 8 ++++----
include/linux/ide.h | 4 ++--
3 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index f5ce22c..648aabd 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1025,7 +1025,7 @@ static int init_irq (ide_hwif_t *hwif)
BUG_ON(irqs_disabled());
BUG_ON(hwif == NULL);
- down(&ide_cfg_sem);
+ mutex_lock(&ide_cfg_mtx);
hwif->hwgroup = NULL;
#if MAX_HWIFS > 1
/*
@@ -1154,7 +1154,7 @@ static int init_irq (ide_hwif_t *hwif)
printk(" (%sed with %s)",
hwif->sharing_irq ? "shar" : "serializ", match->name);
printk("\n");
- up(&ide_cfg_sem);
+ mutex_unlock(&ide_cfg_mtx);
return 0;
out_unlink:
spin_lock_irq(&ide_lock);
@@ -1177,7 +1177,7 @@ out_unlink:
}
spin_unlock_irq(&ide_lock);
out_up:
- up(&ide_cfg_sem);
+ mutex_unlock(&ide_cfg_mtx);
return 1;
}
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 3717a32..14ac7c2 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -169,7 +169,7 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR,
IDE1_MAJOR,
static int idebus_parameter; /* holds the "idebus=" parameter */
static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */
-DECLARE_MUTEX(ide_cfg_sem);
+DEFINE_MUTEX(ide_cfg_mtx);
__cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
@@ -564,7 +564,7 @@ void ide_unregister(unsigned int index)
{
ide_drive_t *drive;
ide_hwif_t *hwif, *g;
- static ide_hwif_t tmp_hwif; /* protected by ide_cfg_sem */
+ static ide_hwif_t tmp_hwif; /* protected by ide_cfg_mtx */
ide_hwgroup_t *hwgroup;
int irq_count = 0, unit;
@@ -572,7 +572,7 @@ void ide_unregister(unsigned int index)
BUG_ON(in_interrupt());
BUG_ON(irqs_disabled());
- down(&ide_cfg_sem);
+ mutex_lock(&ide_cfg_mtx);
spin_lock_irq(&ide_lock);
hwif = &ide_hwifs[index];
if (!hwif->present)
@@ -679,7 +679,7 @@ void ide_unregister(unsigned int index)
abort:
spin_unlock_irq(&ide_lock);
- up(&ide_cfg_sem);
+ mutex_unlock(&ide_cfg_mtx);
}
EXPORT_SYMBOL(ide_unregister);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 0bacf7f..16ae688 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1382,11 +1382,11 @@ extern const ide_pio_timings_t ide_pio_timings[6];
extern spinlock_t ide_lock;
-extern struct semaphore ide_cfg_sem;
+extern struct mutex ide_cfg_mtx;
/*
* Structure locking:
*
- * ide_cfg_sem and ide_lock together protect changes to
+ * ide_cfg_mtx and ide_lock together protect changes to
* ide_hwif_t->{next,hwgroup}
* ide_drive_t->next
*
-
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