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authorDaniel Stodden <daniel.stodden@citrix.com>2010-08-07 18:51:21 +0200
committerJens Axboe <jaxboe@fusionio.com>2010-08-07 18:51:21 +0200
commitd54142c71f05b608b7360d80bdab74eed0f17a98 (patch)
tree05bae4d49f360b4b18b8a69014f1489fae8a9fe5 /drivers/block/xen-blkfront.c
parent7b32d1044ae791a1e53a53023bf2668438d5301b (diff)
downloadlinux-rt-d54142c71f05b608b7360d80bdab74eed0f17a98.tar.gz
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>
Diffstat (limited to 'drivers/block/xen-blkfront.c')
-rw-r--r--drivers/block/xen-blkfront.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index b01167b6207a..c6727b5cefd6 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1120,6 +1120,10 @@ static int blkfront_remove(struct xenbus_device *xbdev)
mutex_lock(&bdev->bd_mutex);
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) {
xlvbd_release_gendisk(info);
disk->private_data = NULL;
@@ -1191,6 +1195,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
if (xbdev && xbdev->state == XenbusStateClosing) {
/* pending switch to state closed */
+ dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n");
xlvbd_release_gendisk(info);
xenbus_frontend_closed(info->xbdev);
}
@@ -1199,6 +1204,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
if (!xbdev) {
/* sudden device removal */
+ dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n");
xlvbd_release_gendisk(info);
disk->private_data = NULL;
kfree(info);