* [PATCH] blkfront: don't put bdev right after getting it
@ 2012-02-16 12:16 Andrew Jones
2012-02-16 19:44 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-02-21 14:58 ` Konrad Rzeszutek Wilk
0 siblings, 2 replies; 4+ messages in thread
From: Andrew Jones @ 2012-02-16 12:16 UTC (permalink / raw)
To: xen-devel; +Cc: jeremy, virtualization, konrad.wilk
We should hang onto bdev until we're done with it.
Signed-off-by: Andrew Jones <drjones@redhat.com>
---
drivers/block/xen-blkfront.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 2f22874..5d45688 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1410,7 +1410,6 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
mutex_lock(&blkfront_mutex);
bdev = bdget_disk(disk, 0);
- bdput(bdev);
if (bdev->bd_openers)
goto out;
@@ -1441,6 +1440,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
}
out:
+ bdput(bdev);
mutex_unlock(&blkfront_mutex);
return 0;
}
--
1.7.7.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [Xen-devel] [PATCH] blkfront: don't put bdev right after getting it
2012-02-16 12:16 [PATCH] blkfront: don't put bdev right after getting it Andrew Jones
@ 2012-02-16 19:44 ` Konrad Rzeszutek Wilk
2012-02-17 12:03 ` Andrew Jones
2012-02-21 14:58 ` Konrad Rzeszutek Wilk
1 sibling, 1 reply; 4+ messages in thread
From: Konrad Rzeszutek Wilk @ 2012-02-16 19:44 UTC (permalink / raw)
To: Andrew Jones; +Cc: jeremy, xen-devel, konrad.wilk, virtualization
On Thu, Feb 16, 2012 at 01:16:25PM +0100, Andrew Jones wrote:
> We should hang onto bdev until we're done with it.
Looks ok. Is there a BZ that sparked this? Thanks.
>
> Signed-off-by: Andrew Jones <drjones@redhat.com>
> ---
> drivers/block/xen-blkfront.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
> index 2f22874..5d45688 100644
> --- a/drivers/block/xen-blkfront.c
> +++ b/drivers/block/xen-blkfront.c
> @@ -1410,7 +1410,6 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
> mutex_lock(&blkfront_mutex);
>
> bdev = bdget_disk(disk, 0);
> - bdput(bdev);
>
> if (bdev->bd_openers)
> goto out;
> @@ -1441,6 +1440,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
> }
>
> out:
> + bdput(bdev);
> mutex_unlock(&blkfront_mutex);
> return 0;
> }
> --
> 1.7.7.5
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Xen-devel] [PATCH] blkfront: don't put bdev right after getting it
2012-02-16 19:44 ` [Xen-devel] " Konrad Rzeszutek Wilk
@ 2012-02-17 12:03 ` Andrew Jones
0 siblings, 0 replies; 4+ messages in thread
From: Andrew Jones @ 2012-02-17 12:03 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk; +Cc: jeremy, xen-devel, konrad wilk, virtualization
----- Original Message -----
> On Thu, Feb 16, 2012 at 01:16:25PM +0100, Andrew Jones wrote:
> > We should hang onto bdev until we're done with it.
>
> Looks ok. Is there a BZ that sparked this? Thanks.
Nope. Just came across it while I was looking at the code.
Drew
> >
> > Signed-off-by: Andrew Jones <drjones@redhat.com>
> > ---
> > drivers/block/xen-blkfront.c | 2 +-
> > 1 files changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/block/xen-blkfront.c
> > b/drivers/block/xen-blkfront.c
> > index 2f22874..5d45688 100644
> > --- a/drivers/block/xen-blkfront.c
> > +++ b/drivers/block/xen-blkfront.c
> > @@ -1410,7 +1410,6 @@ static int blkif_release(struct gendisk
> > *disk, fmode_t mode)
> > mutex_lock(&blkfront_mutex);
> >
> > bdev = bdget_disk(disk, 0);
> > - bdput(bdev);
> >
> > if (bdev->bd_openers)
> > goto out;
> > @@ -1441,6 +1440,7 @@ static int blkif_release(struct gendisk
> > *disk, fmode_t mode)
> > }
> >
> > out:
> > + bdput(bdev);
> > mutex_unlock(&blkfront_mutex);
> > return 0;
> > }
> > --
> > 1.7.7.5
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xensource.com
> > http://lists.xensource.com/xen-devel
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] blkfront: don't put bdev right after getting it
2012-02-16 12:16 [PATCH] blkfront: don't put bdev right after getting it Andrew Jones
2012-02-16 19:44 ` [Xen-devel] " Konrad Rzeszutek Wilk
@ 2012-02-21 14:58 ` Konrad Rzeszutek Wilk
1 sibling, 0 replies; 4+ messages in thread
From: Konrad Rzeszutek Wilk @ 2012-02-21 14:58 UTC (permalink / raw)
To: Andrew Jones; +Cc: jeremy, xen-devel, virtualization
On Thu, Feb 16, 2012 at 01:16:25PM +0100, Andrew Jones wrote:
> We should hang onto bdev until we're done with it.
applied in #testing
>
> Signed-off-by: Andrew Jones <drjones@redhat.com>
> ---
> drivers/block/xen-blkfront.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
> index 2f22874..5d45688 100644
> --- a/drivers/block/xen-blkfront.c
> +++ b/drivers/block/xen-blkfront.c
> @@ -1410,7 +1410,6 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
> mutex_lock(&blkfront_mutex);
>
> bdev = bdget_disk(disk, 0);
> - bdput(bdev);
>
> if (bdev->bd_openers)
> goto out;
> @@ -1441,6 +1440,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
> }
>
> out:
> + bdput(bdev);
> mutex_unlock(&blkfront_mutex);
> return 0;
> }
> --
> 1.7.7.5
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-02-21 14:58 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-02-16 12:16 [PATCH] blkfront: don't put bdev right after getting it Andrew Jones
2012-02-16 19:44 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-02-17 12:03 ` Andrew Jones
2012-02-21 14:58 ` Konrad Rzeszutek Wilk
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