From b391277a56b9eaaff4474339c703e574ed7fab5b Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 18 Jun 2009 09:57:18 +0200 Subject: [PATCH] sd, sr: fix Driver 'sd' needs updating message If a SCSI ULD driver sets blk_queue_prep_rq(), it should clean it up itself on remove(), and not from the bus callbacks. This removes the need to hook into bus->remove(), which should not be used at the same time as driver->remove(). [jejb: fix sdkp initialisation problem due to mismerge] Signed-off-by: Hannes Reinecke Signed-off-by: Kay Sievers Signed-off-by: James Bottomley --- drivers/scsi/scsi_lib.c | 1 + drivers/scsi/scsi_priv.h | 1 - drivers/scsi/scsi_sysfs.c | 17 ----------------- drivers/scsi/sd.c | 1 + drivers/scsi/sr.c | 1 + include/scsi/scsi_driver.h | 1 + 6 files changed, 4 insertions(+), 18 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 30f3275e119..f3c40898fc7 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1207,6 +1207,7 @@ int scsi_prep_fn(struct request_queue *q, struct request *req) ret = scsi_setup_blk_pc_cmnd(sdev, req); return scsi_prep_return(q, req, ret); } +EXPORT_SYMBOL(scsi_prep_fn); /* * scsi_dev_queue_ready: if we can send requests to sdev, return 1 else diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index 00264aab8c8..021e503c8c4 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -87,7 +87,6 @@ extern int scsi_init_queue(void); extern void scsi_exit_queue(void); struct request_queue; struct request; -extern int scsi_prep_fn(struct request_queue *, struct request *); extern struct kmem_cache *scsi_sdb_cache; /* scsi_proc.c */ diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index fa4711d1274..91482f2dcc5 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -420,29 +420,12 @@ static int scsi_bus_resume(struct device * dev) return err; } -static int scsi_bus_remove(struct device *dev) -{ - struct device_driver *drv = dev->driver; - struct scsi_device *sdev = to_scsi_device(dev); - int err = 0; - - /* reset the prep_fn back to the default since the - * driver may have altered it and it's being removed */ - blk_queue_prep_rq(sdev->request_queue, scsi_prep_fn); - - if (drv && drv->remove) - err = drv->remove(dev); - - return 0; -} - struct bus_type scsi_bus_type = { .name = "scsi", .match = scsi_bus_match, .uevent = scsi_bus_uevent, .suspend = scsi_bus_suspend, .resume = scsi_bus_resume, - .remove = scsi_bus_remove, }; EXPORT_SYMBOL_GPL(scsi_bus_type); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index e4ef11af18a..5616cd780ff 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2123,6 +2123,7 @@ static int sd_remove(struct device *dev) async_synchronize_full(); sdkp = dev_get_drvdata(dev); + blk_queue_prep_rq(sdkp->device->request_queue, scsi_prep_fn); device_del(&sdkp->dev); del_gendisk(sdkp->disk); sd_shutdown(dev); diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index cd350dfc121..cce0fe4c8a3 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -881,6 +881,7 @@ static int sr_remove(struct device *dev) { struct scsi_cd *cd = dev_get_drvdata(dev); + blk_queue_prep_rq(cd->device->request_queue, scsi_prep_fn); del_gendisk(cd->disk); mutex_lock(&sr_ref_mutex); diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h index 1f5ca7f6211..9fd6702f02e 100644 --- a/include/scsi/scsi_driver.h +++ b/include/scsi/scsi_driver.h @@ -32,5 +32,6 @@ int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req); int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req); int scsi_prep_state_check(struct scsi_device *sdev, struct request *req); int scsi_prep_return(struct request_queue *q, struct request *req, int ret); +int scsi_prep_fn(struct request_queue *, struct request *); #endif /* _SCSI_SCSI_DRIVER_H */ -- 2.32.0.93.g670b81a890