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OpenCloudOS-Kernel
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blkfront: Klog the unclean release path 

Signed-off-by: Daniel Stodden <daniel.stodden@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Daniel Stodden 2010-08-07 18:51:21 +02:00 committed by Jens Axboe
parent 7b32d1044a
commit d54142c71f
1 changed files with 6 additions and 0 deletions
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6
drivers/block/xen-blkfront.c
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@ -1120,6 +1120,10 @@ static int blkfront_remove(struct xenbus_device *xbdev)
mutex_lock(&bdev->bd_mutex); mutex_lock(&bdev->bd_mutex);
info = disk->private_data; info = disk->private_data;
dev_warn(disk_to_dev(disk),
"%s was hot-unplugged, %d stale handles\n",
xbdev->nodename, bdev->bd_openers);
if (info && !bdev->bd_openers) { if (info && !bdev->bd_openers) {
xlvbd_release_gendisk(info); xlvbd_release_gendisk(info);
disk->private_data = NULL; disk->private_data = NULL;
@ -1191,6 +1195,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
if (xbdev && xbdev->state == XenbusStateClosing) { if (xbdev && xbdev->state == XenbusStateClosing) {
/* pending switch to state closed */ /* pending switch to state closed */
dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n");
xlvbd_release_gendisk(info); xlvbd_release_gendisk(info);
xenbus_frontend_closed(info->xbdev); xenbus_frontend_closed(info->xbdev);
} }
@ -1199,6 +1204,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
if (!xbdev) { if (!xbdev) {
/* sudden device removal */ /* sudden device removal */
dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n");
xlvbd_release_gendisk(info); xlvbd_release_gendisk(info);
disk->private_data = NULL; disk->private_data = NULL;
kfree(info); kfree(info);