lkml.org 
[lkml]   [2005]   [Nov]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[PATCH] 2.6.14-rt15 IDE compat_semaphore to completion
    Hi Ingo,

    Please consider if this patch could be included into
    the next realtime patch.

    Aleksey Makarov

    Index: linux-2.6.14-rt15/include/linux/ide.h
    ===================================================================
    --- linux-2.6.14-rt15.orig/include/linux/ide.h
    +++ linux-2.6.14-rt15/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>
    @@ -754,7 +755,7 @@ typedef struct ide_drive_s {
    int crc_count; /* crc counter to reduce drive speed */
    struct list_head list;
    struct device gendev;
    - struct compat_semaphore gendev_rel_sem; /* to deal with device
    release() */
    + struct completion gendev_rel_sem; /* to deal with device release() */
    } ide_drive_t;

    #define to_ide_device(dev)container_of(dev, ide_drive_t, gendev)
    @@ -910,7 +911,7 @@ typedef struct hwif_s {
    unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */

    struct device gendev;
    - struct compat_semaphore gendev_rel_sem; /* To deal with device
    release() */
    + struct completion gendev_rel_sem; /* To deal with device release() */

    void *hwif_data; /* extra hwif data */

    Index: linux-2.6.14-rt15/drivers/ide/ide.c
    ===================================================================
    --- linux-2.6.14-rt15.orig/drivers/ide/ide.c
    +++ linux-2.6.14-rt15/drivers/ide/ide.c
    @@ -222,7 +222,7 @@ static void init_hwif_data(ide_hwif_t *h
    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_sem);

    default_hwif_iops(hwif);
    default_hwif_transport(hwif);
    @@ -245,7 +245,7 @@ static void init_hwif_data(ide_hwif_t *h
    drive->is_flash = 0;
    drive->vdma = 0;
    INIT_LIST_HEAD(&drive->list);
    - sema_init(&drive->gendev_rel_sem, 0);
    + init_completion(&drive->gendev_rel_sem);
    }
    }

    @@ -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_sem);
    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_sem);

    /*
    * Remove us from the kernel's knowledge
    Index: linux-2.6.14-rt15/drivers/ide/ide-probe.c
    ===================================================================
    --- linux-2.6.14-rt15.orig/drivers/ide/ide-probe.c
    +++ linux-2.6.14-rt15/drivers/ide/ide-probe.c
    @@ -656,7 +656,7 @@ static void hwif_release_dev (struct dev
    {
    ide_hwif_t *hwif = container_of(dev, ide_hwif_t, gendev);

    - up(&hwif->gendev_rel_sem);
    + complete(&hwif->gendev_rel_sem);
    }

    static void hwif_register (ide_hwif_t *hwif)
    @@ -1328,7 +1328,7 @@ static void drive_release_dev (struct de
    drive->queue = NULL;
    spin_unlock_irq(&ide_lock);

    - up(&drive->gendev_rel_sem);
    + complete(&drive->gendev_rel_sem);
    }

    /*
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/
    \
     
     \ /
      Last update: 2005-11-25 13:59    [W:0.046 / U:0.128 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site