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From: Tejun Heo <tj@kernel.org>
To: jeff@garzik.org, linux-ide@vger.kernel.org,
	jens.axboe@oracle.com, linux-scsi@vger.kernel.org,
	James.Bottomley@suse.de, linux-kernel@vger.kernel.org,
	ben@decadent.org.uk, davem@daveml
Cc: Tejun Heo <tj@kernel.org>
Subject: [PATCH 7/8] libata: use the enlarged capacity after late HPA unlock
Date: Sat, 15 May 2010 20:09:33 +0200	[thread overview]
Message-ID: <1273946974-29131-8-git-send-email-tj@kernel.org> (raw)
In-Reply-To: <1273946974-29131-1-git-send-email-tj@kernel.org>

After late HPA unlock, libata kept using the original capacity
ignoring the new larger native capacity.  Enlarging device on the fly
doesn't cause any harm.  Use the larger native capacity instead.  This
will enable on-demand HPA unlocking.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
---
 drivers/ata/libata-core.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 86f405b..9d6e92d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4212,9 +4212,8 @@ int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
 	    dev->n_sectors > n_sectors && dev->n_sectors == n_native_sectors) {
 		ata_dev_printk(dev, KERN_WARNING,
 			       "new n_sectors matches native, probably "
-			       "late HPA unlock, continuing\n");
-		/* keep using the old n_sectors */
-		dev->n_sectors = n_sectors;
+			       "late HPA unlock, n_sectors updated\n");
+		/* use the larger n_sectors */
 		return 0;
 	}
 
-- 
1.6.4.2


  parent reply	other threads:[~2010-05-15 18:09 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-15 18:09 [PATCHSET] block,libata: implement ->unlock_native_capacity() Tejun Heo
2010-05-15 18:09 ` [PATCH 1/8] buffer: make invalidate_bdev() drain all percpu LRU add caches Tejun Heo
2010-05-16  7:11   ` David Miller
2010-05-15 18:09 ` [PATCH 2/8] block: restart partition scan after resizing a device Tejun Heo
2010-05-16  7:15   ` David Miller
2010-05-15 18:09 ` [PATCH 3/8] block,ide: simplify bdops->set_capacity() to ->unlock_native_capacity() Tejun Heo
2010-05-15 18:48   ` Bartlomiej Zolnierkiewicz
2010-05-15 18:58     ` Tejun Heo
2010-05-16  7:15   ` David Miller
2010-05-15 18:09 ` [PATCH 4/8] block: use struct parsed_partitions *state universally in partition check code Tejun Heo
2010-05-16  7:16   ` David Miller
2010-05-15 18:09 ` [PATCH 5/8] block: improve automatic native capacity unlocking Tejun Heo
2010-05-16  7:17   ` David Miller
2010-05-15 18:09 ` [PATCH 6/8] SCSI: implement sd_unlock_native_capacity() Tejun Heo
2010-05-16  7:18   ` David Miller
2010-05-16 13:39   ` James Bottomley
2010-05-16 15:07     ` Ben Hutchings
2010-05-16 16:00       ` James Bottomley
2010-05-16 17:00         ` Tejun Heo
2010-05-16 19:23           ` James Bottomley
2010-05-17  5:30             ` Tejun Heo
2010-06-02 17:50   ` Jeff Garzik
2010-05-15 18:09 ` Tejun Heo [this message]
2010-05-15 19:22   ` [PATCH 7/8] libata: use the enlarged capacity after late HPA unlock Jeff Garzik
2010-05-16  7:18   ` David Miller
2010-05-15 18:09 ` [PATCH 8/8] libata: implement on-demand HPA unlocking Tejun Heo
2010-05-15 19:22   ` Jeff Garzik
2010-05-16  7:19   ` David Miller
2010-05-19  7:05 ` [PATCHSET] block,libata: implement ->unlock_native_capacity() Tejun Heo
2010-05-19  7:08   ` Jens Axboe
2010-06-02 16:37 ` Tejun Heo

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