All of lore.kernel.org
 help / color / mirror / Atom feed
From: Alexander Gordeev <agordeev@redhat.com>
To: Keith Busch <keith.busch@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	Matthew Wilcox <willy@linux.intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linux-nvme@lists.infradead.org,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
Subject: [PATCH] nvme: Cleanup nvme_dev_start()
Date: Mon, 20 Jan 2014 09:43:14 +0100	[thread overview]
Message-ID: <20140120084314.GD19068@dhcp-26-207.brq.redhat.com> (raw)
In-Reply-To: <20140120083835.GA19068@dhcp-26-207.brq.redhat.com>

This update fixes an oddity when a device is first added
and then removed from dev_list in case of initialization
failure, instead of just being added in case of success.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
---
 drivers/block/nvme-core.c |   19 ++++++++-----------
 1 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index e1e4ad4..e4e12be 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -2105,29 +2105,26 @@ static int nvme_dev_start(struct nvme_dev *dev)
 	if (result)
 		goto unmap;
 
-	spin_lock(&dev_list_lock);
-	list_add(&dev->node, &dev_list);
-	spin_unlock(&dev_list_lock);
-
 	result = set_queue_count(dev, num_online_cpus());
 	if (result == -EBUSY)
-		return -EBUSY;
+		goto adddev;
 
 	nvme_teardown_admin_queue(dev);
 
 	if (result)
-		goto disable;
+		goto unmap;
 
 	result = nvme_setup_io_queues(dev, result);
 	if (result)
-		goto disable;
-
-	return 0;
+		goto unmap;
 
- disable:
+ adddev:
 	spin_lock(&dev_list_lock);
-	list_del_init(&dev->node);
+	list_add(&dev->node, &dev_list);
 	spin_unlock(&dev_list_lock);
+
+	return result;
+
  unmap:
 	nvme_dev_unmap(dev);
 	return result;
-- 
1.7.7.6

-- 
Regards,
Alexander Gordeev
agordeev@redhat.com

WARNING: multiple messages have this Message-ID (diff)
From: agordeev@redhat.com (Alexander Gordeev)
Subject: [PATCH] nvme: Cleanup nvme_dev_start()
Date: Mon, 20 Jan 2014 09:43:14 +0100	[thread overview]
Message-ID: <20140120084314.GD19068@dhcp-26-207.brq.redhat.com> (raw)
In-Reply-To: <20140120083835.GA19068@dhcp-26-207.brq.redhat.com>

This update fixes an oddity when a device is first added
and then removed from dev_list in case of initialization
failure, instead of just being added in case of success.

Signed-off-by: Alexander Gordeev <agordeev at redhat.com>
---
 drivers/block/nvme-core.c |   19 ++++++++-----------
 1 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index e1e4ad4..e4e12be 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -2105,29 +2105,26 @@ static int nvme_dev_start(struct nvme_dev *dev)
 	if (result)
 		goto unmap;
 
-	spin_lock(&dev_list_lock);
-	list_add(&dev->node, &dev_list);
-	spin_unlock(&dev_list_lock);
-
 	result = set_queue_count(dev, num_online_cpus());
 	if (result == -EBUSY)
-		return -EBUSY;
+		goto adddev;
 
 	nvme_teardown_admin_queue(dev);
 
 	if (result)
-		goto disable;
+		goto unmap;
 
 	result = nvme_setup_io_queues(dev, result);
 	if (result)
-		goto disable;
-
-	return 0;
+		goto unmap;
 
- disable:
+ adddev:
 	spin_lock(&dev_list_lock);
-	list_del_init(&dev->node);
+	list_add(&dev->node, &dev_list);
 	spin_unlock(&dev_list_lock);
+
+	return result;
+
  unmap:
 	nvme_dev_unmap(dev);
 	return result;
-- 
1.7.7.6

-- 
Regards,
Alexander Gordeev
agordeev at redhat.com

  parent reply	other threads:[~2014-01-20  8:41 UTC|newest]

Thread overview: 114+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-17 16:02 [PATCH v2 0/9] Phase out pci_enable_msi_block() Alexander Gordeev
2014-01-17 16:02 ` Alexander Gordeev
2014-01-17 16:02 ` Alexander Gordeev
2014-01-17  9:26 ` [PATCH 10/9] PCI/MSI: Undeprecate pci_enable_msi() Alexander Gordeev
2014-01-29 22:10   ` Bjorn Helgaas
2014-01-17  9:27 ` [PATCH 11/9] PCI/MSI: Phase out pci_enable_msi_block() Alexander Gordeev
2014-01-29 22:22   ` Bjorn Helgaas
2014-01-17 16:02 ` [PATCH v2 1/9] ahci: Fix broken fallback to single MSI mode Alexander Gordeev
2014-01-17 16:02 ` [PATCH v2 2/9] ahci: Use pci_enable_msi_range() Alexander Gordeev
2014-01-17 16:02 ` [PATCH v2 3/9] ipr: Get rid of superfluous call to pci_disable_msi/msix() Alexander Gordeev
2014-01-17 16:02 ` [PATCH v2 4/9] ipr: Use pci_enable_msi_range() and pci_enable_msix_range() Alexander Gordeev
2014-01-28  9:54   ` Alexander Gordeev
2014-01-28 15:28     ` Brian King
2014-01-29 13:26       ` Alexander Gordeev
2014-01-30 14:06         ` Alexander Gordeev
2014-01-30 14:09           ` [PATCH v2 1/2] ipr: Get rid of superfluous call to pci_disable_msi/msix() Alexander Gordeev
2014-02-03 15:20             ` Brian King
2014-01-30 14:10           ` [PATCH v2 2/2] ipr: Use pci_enable_msi_range() and pci_enable_msix_range() Alexander Gordeev
2014-02-03 15:22             ` Brian King
2014-02-24  8:12           ` [PATCH v2 4/9] " Alexander Gordeev
2014-02-26 15:02             ` Brian King
2014-01-17 16:02 ` [PATCH v2 5/9] nvme: Fix invalid call to irq_set_affinity_hint() Alexander Gordeev
2014-01-17 16:02   ` Alexander Gordeev
2014-01-17 19:40   ` Bjorn Helgaas
2014-01-17 19:40     ` Bjorn Helgaas
2014-01-17 22:01     ` Keith Busch
2014-01-17 22:01       ` Keith Busch
2014-01-20  8:38       ` Alexander Gordeev
2014-01-20  8:38         ` Alexander Gordeev
2014-01-20  8:40         ` [PATCH v3 6/9] nvme: Use pci_enable_msi_range() and pci_enable_msix_range() Alexander Gordeev
2014-01-20  8:40           ` Alexander Gordeev
2014-02-05 13:07           ` Alexander Gordeev
2014-02-05 13:07             ` Alexander Gordeev
2014-02-18 17:54           ` Keith Busch
2014-02-18 17:54             ` Keith Busch
2014-01-20  8:42         ` [PATCH] nvme: Cleanup nvme_dev_start() and fix IRQ leak Alexander Gordeev
2014-01-20  8:42           ` Alexander Gordeev
2014-01-20 22:48           ` Keith Busch
2014-01-20 22:48             ` Keith Busch
2014-01-21 10:03             ` Alexander Gordeev
2014-01-21 10:03               ` Alexander Gordeev
2014-01-21 10:06               ` [PATCH 1/2] Revert "NVMe: Disable admin queue on init failure" Alexander Gordeev
2014-01-21 10:06                 ` Alexander Gordeev
2014-01-21 10:07               ` [PATCH 2/2] nvme: Cleanup nvme_dev_start() and fix IRQ leak Alexander Gordeev
2014-01-21 10:07                 ` Alexander Gordeev
2014-01-21 19:06                 ` Keith Busch
2014-01-21 19:06                   ` Keith Busch
2014-01-20  8:43         ` Alexander Gordeev [this message]
2014-01-20  8:43           ` [PATCH] nvme: Cleanup nvme_dev_start() Alexander Gordeev
2014-01-20 16:41           ` Keith Busch
2014-01-20 16:41             ` Keith Busch
2014-01-17 16:02 ` [PATCH v2 6/9] nvme: Use pci_enable_msi_range() and pci_enable_msix_range() Alexander Gordeev
2014-01-17 16:02   ` Alexander Gordeev
2014-01-17 16:02 ` [PATCH v2 7/9] vfio: " Alexander Gordeev
2014-01-29 21:36   ` Bjorn Helgaas
2014-01-17 16:02 ` [PATCH v2 8/9] ath10k: Use pci_enable_msi_range() Alexander Gordeev
2014-01-17 16:02   ` Alexander Gordeev
2014-01-30 13:48   ` [PATCH 1/3] ath10k: Get rid of superfluous call to pci_disable_msi() Alexander Gordeev
2014-01-30 13:48     ` Alexander Gordeev
2014-02-04 18:32     ` Kalle Valo
2014-02-04 18:32       ` Kalle Valo
2014-02-04 19:09       ` Alexander Gordeev
2014-02-04 19:09         ` Alexander Gordeev
2014-02-05  8:21         ` Kalle Valo
2014-02-05  8:21           ` Kalle Valo
2014-02-05  8:50           ` Alexander Gordeev
2014-02-05  8:50             ` Alexander Gordeev
2014-02-05  8:54             ` Kalle Valo
2014-02-05  8:54               ` Kalle Valo
2014-02-12  0:31               ` Bjorn Helgaas
2014-02-12  0:31                 ` Bjorn Helgaas
2014-02-12 13:38                 ` Alexander Gordeev
2014-02-12 13:38                   ` Alexander Gordeev
2014-02-12 19:28                   ` Bjorn Helgaas
2014-02-12 19:28                     ` Bjorn Helgaas
2014-02-12 21:30                     ` Kalle Valo
2014-02-12 21:30                       ` Kalle Valo
2014-02-12 21:40                       ` Bjorn Helgaas
2014-02-12 21:40                         ` Bjorn Helgaas
2014-02-13 10:29                         ` Kalle Valo
2014-02-13 10:29                           ` Kalle Valo
2014-02-13 13:18                       ` Alexander Gordeev
2014-02-13 16:04     ` Kalle Valo
2014-02-13 16:04       ` Kalle Valo
2014-01-30 13:48   ` [PATCH 2/3] ath10k: Disable MSI in case IRQ configuration is unknown Alexander Gordeev
2014-01-30 13:48     ` Alexander Gordeev
2014-01-30 13:49   ` [PATCH v3 3/3] ath10k: Use pci_enable_msi_range() Alexander Gordeev
2014-01-30 13:49     ` Alexander Gordeev
2014-02-03 11:02   ` [PATCH v2 8/9] " Alexander Gordeev
2014-02-03 11:02     ` Alexander Gordeev
2014-01-17 16:02 ` [PATCH v2 9/9] wil6210: " Alexander Gordeev
2014-01-29 21:37   ` Bjorn Helgaas
2014-02-07 14:46   ` [PATCH] wil6210: Fix switch operator "missing break?" warning Alexander Gordeev
2014-02-10 10:54     ` Vladimir Kondratiev
2014-02-10 12:16       ` Alexander Gordeev
2014-02-11  1:32         ` Fengguang Wu
2014-01-17 21:00 ` [PATCH v2 0/9] Phase out pci_enable_msi_block() Bjorn Helgaas
2014-01-17 21:00   ` Bjorn Helgaas
2014-01-17 21:00   ` Bjorn Helgaas
2014-01-18  7:15   ` Alexander Gordeev
2014-01-18  7:15     ` Alexander Gordeev
2014-01-18  7:15     ` Alexander Gordeev
2014-01-18 14:38     ` Bjorn Helgaas
2014-01-18 14:38       ` Bjorn Helgaas
2014-01-18 14:38       ` Bjorn Helgaas
2014-01-18 14:59       ` Tejun Heo
2014-01-18 14:59         ` Tejun Heo
2014-01-18 14:59         ` Tejun Heo
2014-01-29 21:48         ` Bjorn Helgaas
2014-01-29 21:48           ` Bjorn Helgaas
2014-01-29 21:48           ` Bjorn Helgaas
2014-01-29 13:59   ` Alexander Gordeev
2014-01-29 13:59     ` Alexander Gordeev
2014-01-29 13:59     ` Alexander Gordeev

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20140120084314.GD19068@dhcp-26-207.brq.redhat.com \
    --to=agordeev@redhat.com \
    --cc=bhelgaas@google.com \
    --cc=keith.busch@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-nvme@lists.infradead.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=willy@linux.intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.