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See http://www.infradead.org/rpr.html X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Mimecast-Bulk-Signature: yes X-Mimecast-Spam-Signature: bulk X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: dm-devel@redhat.com Cc: Justin Sanders , Mike Snitzer , "Michael S. Tsirkin" , Jason Wang , linux-nvme@lists.infradead.org, Song Liu , dm-devel@redhat.com, linux-scsi@vger.kernel.org, xen-devel@lists.xenproject.org, Ilya Dryomov , Jack Wang , Konrad Rzeszutek Wilk , Josef Bacik , nbd@other.debian.org, linux-raid@vger.kernel.org, Stefan Hajnoczi , drbd-dev@tron.linbit.com, ceph-devel@vger.kernel.org, linux-block@vger.kernel.org, "Martin K. Petersen" , Minchan Kim , linux-fsdevel@vger.kernel.org, Paolo Bonzini , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Subject: [dm-devel] [PATCH 46/78] ide: switch to __register_blkdev for command set probing X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit ide is the last user of the blk_register_region framework except for the tracking of allocated gendisk. Switch to __register_blkdev, even if that doesn't allow us to trivially find out which command set to probe for. That means we now always request all modules when a user tries to access an unclaimed ide device node, but except for a few potentially loaded modules for a fringe use case of a deprecated and soon to be removed driver that doesn't make a difference. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke --- drivers/ide/ide-probe.c | 34 ++++++---------------------------- 1 file changed, 6 insertions(+), 28 deletions(-) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 076d34b381720f..1c1567bb519429 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -902,31 +902,12 @@ static int init_irq (ide_hwif_t *hwif) return 1; } -static int ata_lock(dev_t dev, void *data) +static void ata_probe(dev_t dev) { - /* FIXME: we want to pin hwif down */ - return 0; -} - -static struct kobject *ata_probe(dev_t dev, int *part, void *data) -{ - ide_hwif_t *hwif = data; - int unit = *part >> PARTN_BITS; - ide_drive_t *drive = hwif->devices[unit]; - - if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) - return NULL; - - if (drive->media == ide_disk) - request_module("ide-disk"); - if (drive->media == ide_cdrom || drive->media == ide_optical) - request_module("ide-cd"); - if (drive->media == ide_tape) - request_module("ide-tape"); - if (drive->media == ide_floppy) - request_module("ide-floppy"); - - return NULL; + request_module("ide-disk"); + request_module("ide-cd"); + request_module("ide-tape"); + request_module("ide-floppy"); } void ide_init_disk(struct gendisk *disk, ide_drive_t *drive) @@ -967,7 +948,7 @@ static int hwif_init(ide_hwif_t *hwif) return 0; } - if (register_blkdev(hwif->major, hwif->name)) + if (__register_blkdev(hwif->major, hwif->name, ata_probe)) return 0; if (!hwif->sg_max_nents) @@ -989,8 +970,6 @@ static int hwif_init(ide_hwif_t *hwif) goto out; } - blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS, - THIS_MODULE, ata_probe, ata_lock, hwif); return 1; out: @@ -1582,7 +1561,6 @@ static void ide_unregister(ide_hwif_t *hwif) /* * Remove us from the kernel's knowledge */ - blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<sg_table); unregister_blkdev(hwif->major, hwif->name); -- 2.29.2 -- dm-devel mailing list dm-devel@redhat.com https://www.redhat.com/mailman/listinfo/dm-devel