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[PATCH] mutex subsystem, semaphore to completion: IDE ->gendev_rel_sem

Browse source 
The patch changes semaphores that are initialized as
locked to complete().

Source: MontaVista Software, Inc.

Modified-by: Steven Rostedt <[email protected]>

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 <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Aleksey Makarov 2006-01-09 15:59:27 -08:00 • committed by Ingo Molnar
commit f36d4024ca
3 changed files with 9 additions and 8 deletions
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4
drivers/ide/ide-probe.c
View file

@ -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);
}
/*

8
drivers/ide/ide.c
View file

@ -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