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authorAleksey Makarov <amakarov@ru.mvista.com>2006-01-09 15:59:27 -0800
committerIngo Molnar <mingo@hera.kernel.org>2006-01-09 15:59:27 -0800
commitf36d4024caa3790606e43228a574157c45b73b22 (patch)
treeeb3d5e39d5fd83731bf608c4a7c424916e68c007
parent3fe0c2776113c24b4b30374003f934cf44280db5 (diff)
[PATCH] mutex subsystem, semaphore to completion: IDE ->gendev_rel_sem
The patch changes semaphores that are initialized as locked to complete(). Source: MontaVista Software, Inc. Modified-by: Steven Rostedt <rostedt@goodmis.org> The following patch is from Montavista. I modified it slightly. Semaphores are currently being used where it makes more sense for completions. This patch corrects that. Signed-off-by: Aleksey Makarov <amakarov@ru.mvista.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--drivers/ide/ide-probe.c4
-rw-r--r--drivers/ide/ide.c8
-rw-r--r--include/linux/ide.h5
3 files changed, 9 insertions, 8 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 1ddaa71a8f4..7cb2d86601d 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -655,7 +655,7 @@ static void hwif_release_dev (struct device *dev)
{
ide_hwif_t *hwif = container_of(dev, ide_hwif_t, gendev);
- up(&hwif->gendev_rel_sem);
+ complete(&hwif->gendev_rel_comp);
}
static void hwif_register (ide_hwif_t *hwif)
@@ -1327,7 +1327,7 @@ static void drive_release_dev (struct device *dev)
drive->queue = NULL;
spin_unlock_irq(&ide_lock);
- up(&drive->gendev_rel_sem);
+ complete(&drive->gendev_rel_comp);
}
/*
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index b069b13b75a..ec5a4cb173b 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -222,7 +222,7 @@ static void init_hwif_data(ide_hwif_t *hwif, unsigned int index)
hwif->mwdma_mask = 0x80; /* disable all mwdma */
hwif->swdma_mask = 0x80; /* disable all swdma */
- sema_init(&hwif->gendev_rel_sem, 0);
+ init_completion(&hwif->gendev_rel_comp);
default_hwif_iops(hwif);
default_hwif_transport(hwif);
@@ -245,7 +245,7 @@ static void init_hwif_data(ide_hwif_t *hwif, unsigned int index)
drive->is_flash = 0;
drive->vdma = 0;
INIT_LIST_HEAD(&drive->list);
- sema_init(&drive->gendev_rel_sem, 0);
+ init_completion(&drive->gendev_rel_comp);
}
}
@@ -602,7 +602,7 @@ void ide_unregister(unsigned int index)
}
spin_unlock_irq(&ide_lock);
device_unregister(&drive->gendev);
- down(&drive->gendev_rel_sem);
+ wait_for_completion(&drive->gendev_rel_comp);
spin_lock_irq(&ide_lock);
}
hwif->present = 0;
@@ -662,7 +662,7 @@ void ide_unregister(unsigned int index)
/* More messed up locking ... */
spin_unlock_irq(&ide_lock);
device_unregister(&hwif->gendev);
- down(&hwif->gendev_rel_sem);
+ wait_for_completion(&hwif->gendev_rel_comp);
/*
* Remove us from the kernel's knowledge
diff --git a/include/linux/ide.h b/include/linux/ide.h
index ef8d0cbb832..9a8c05dbe4f 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -18,6 +18,7 @@
#include <linux/bio.h>
#include <linux/device.h>
#include <linux/pci.h>
+#include <linux/completion.h>
#include <asm/byteorder.h>
#include <asm/system.h>
#include <asm/io.h>
@@ -638,7 +639,7 @@ typedef struct ide_drive_s {
int crc_count; /* crc counter to reduce drive speed */
struct list_head list;
struct device gendev;
- struct semaphore gendev_rel_sem; /* to deal with device release() */
+ struct completion gendev_rel_comp; /* to deal with device release() */
} ide_drive_t;
#define to_ide_device(dev)container_of(dev, ide_drive_t, gendev)
@@ -794,7 +795,7 @@ typedef struct hwif_s {
unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */
struct device gendev;
- struct semaphore gendev_rel_sem; /* To deal with device release() */
+ struct completion gendev_rel_comp; /* To deal with device release() */
void *hwif_data; /* extra hwif data */