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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Denis Efremov <efremov@linux.com>, Tim Waugh <tim@cyberelk.net>,
Michal Simek <michal.simek@xilinx.com>,
Borislav Petkov <bp@alien8.de>,
"David S. Miller" <davem@davemloft.net>,
Song Liu <song@kernel.org>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Finn Thain <fthain@telegraphics.com.au>,
Michael Schmitz <schmitzmic@gmail.com>,
linux-m68k@lists.linux-m68k.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
linux-raid@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: [PATCH 09/19] xsysace: simplify media change handling
Date: Tue, 8 Sep 2020 16:53:37 +0200 [thread overview]
Message-ID: <20200908145347.2992670-10-hch@lst.de> (raw)
In-Reply-To: <20200908145347.2992670-1-hch@lst.de>
Pass a struct ace_device to ace_revalidate_disk, move the media changed
check into the one caller that needs it, and give the routine a better
name.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/xsysace.c | 26 ++++++++++----------------
1 file changed, 10 insertions(+), 16 deletions(-)
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index eefe542f2d9fff..8d581c7536fb51 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -888,26 +888,20 @@ static unsigned int ace_check_events(struct gendisk *gd, unsigned int clearing)
return ace->media_change ? DISK_EVENT_MEDIA_CHANGE : 0;
}
-static int ace_revalidate_disk(struct gendisk *gd)
+static void ace_media_changed(struct ace_device *ace)
{
- struct ace_device *ace = gd->private_data;
unsigned long flags;
- dev_dbg(ace->dev, "ace_revalidate_disk()\n");
-
- if (ace->media_change) {
- dev_dbg(ace->dev, "requesting cf id and scheduling tasklet\n");
+ dev_dbg(ace->dev, "requesting cf id and scheduling tasklet\n");
- spin_lock_irqsave(&ace->lock, flags);
- ace->id_req_count++;
- spin_unlock_irqrestore(&ace->lock, flags);
+ spin_lock_irqsave(&ace->lock, flags);
+ ace->id_req_count++;
+ spin_unlock_irqrestore(&ace->lock, flags);
- tasklet_schedule(&ace->fsm_tasklet);
- wait_for_completion(&ace->id_completion);
- }
+ tasklet_schedule(&ace->fsm_tasklet);
+ wait_for_completion(&ace->id_completion);
dev_dbg(ace->dev, "revalidate complete\n");
- return ace->id_result;
}
static int ace_open(struct block_device *bdev, fmode_t mode)
@@ -922,8 +916,8 @@ static int ace_open(struct block_device *bdev, fmode_t mode)
ace->users++;
spin_unlock_irqrestore(&ace->lock, flags);
- if (bdev_check_media_change(bdev))
- ace_revalidate_disk(bdev->bd_disk);
+ if (bdev_check_media_change(bdev) && ace->media_change)
+ ace_media_changed(ace);
mutex_unlock(&xsysace_mutex);
return 0;
@@ -1080,7 +1074,7 @@ static int ace_setup(struct ace_device *ace)
(unsigned long long) ace->physaddr, ace->baseaddr, ace->irq);
ace->media_change = 1;
- ace_revalidate_disk(ace->gd);
+ ace_media_changed(ace);
/* Make the sysace device 'live' */
add_disk(ace->gd);
--
2.28.0
next prev parent reply other threads:[~2020-09-08 15:55 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-08 14:53 rework check_disk_change() v2 Christoph Hellwig
2020-09-08 14:53 ` [PATCH 01/19] block: add a bdev_check_media_change helper Christoph Hellwig
2020-09-09 6:59 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 02/19] amiflop: use bdev_check_media_change Christoph Hellwig
2020-09-09 6:59 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 03/19] ataflop: " Christoph Hellwig
2020-09-09 7:00 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 04/19] floppy: " Christoph Hellwig
2020-09-09 6:52 ` Johannes Thumshirn
2020-09-09 7:00 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 05/19] swim: " Christoph Hellwig
2020-09-09 7:01 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 06/19] swim: simplify media change handling Christoph Hellwig
2020-09-09 7:09 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 07/19] swim3: use bdev_check_media_changed Christoph Hellwig
2020-09-09 7:10 ` Hannes Reinecke
2020-09-09 7:50 ` Sergei Shtylyov
2020-09-08 14:53 ` [PATCH 08/19] xsysace: use bdev_check_media_change Christoph Hellwig
2020-09-09 7:10 ` Hannes Reinecke
2020-09-08 14:53 ` Christoph Hellwig [this message]
2020-09-09 7:10 ` [PATCH 09/19] xsysace: simplify media change handling Hannes Reinecke
2020-09-08 14:53 ` [PATCH 10/19] paride/pcd: use bdev_check_media_change Christoph Hellwig
2020-09-09 7:26 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 11/19] gdrom: " Christoph Hellwig
2020-09-09 7:27 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 12/19] ide-cd: use bdev_check_media_changed Christoph Hellwig
2020-09-09 7:27 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 13/19] ide-cd: remove idecd_revalidate_disk Christoph Hellwig
2020-09-09 7:28 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 14/19] ide-gd: stop using the disk events mechanism Christoph Hellwig
2020-09-09 7:32 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 15/19] md: use bdev_check_media_change Christoph Hellwig
2020-09-09 0:49 ` Song Liu
2020-09-09 7:34 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 16/19] sd: " Christoph Hellwig
2020-09-09 7:36 ` Hannes Reinecke
2020-09-09 7:52 ` Sergei Shtylyov
2020-09-08 14:53 ` [PATCH 17/19] sr: " Christoph Hellwig
2020-09-09 7:37 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 18/19] sr: simplify sr_block_revalidate_disk Christoph Hellwig
2020-09-09 7:38 ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 19/19] block: remove check_disk_change Christoph Hellwig
2020-09-09 7:39 ` Hannes Reinecke
2020-09-10 15:54 ` rework check_disk_change() v2 Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2020-09-02 14:11 rework check_disk_change() Christoph Hellwig
2020-09-02 14:12 ` [PATCH 09/19] xsysace: simplify media change handling Christoph Hellwig
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