2011-05-25 11:26:56

by Ding Dinghua

[permalink] [raw]
Subject: [PATCH 2/2] Jbd: fix a bug of leaking jh->b_jcount

drop jh->b_jcount in error path
---
fs/jbd/transaction.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 60d2319..3f7bf84 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -843,8 +843,8 @@ int journal_get_create_access(handle_t *handle, struct buffer_head *bh)
*/
JBUFFER_TRACE(jh, "cancelling revoke");
journal_cancel_revoke(handle, jh);
- journal_put_journal_head(jh);
out:
+ journal_put_journal_head(jh);
return err;
}

--
1.7.4.1



2011-05-25 11:37:11

by Yongqiang Yang

[permalink] [raw]
Subject: Re: [PATCH 2/2] Jbd: fix a bug of leaking jh->b_jcount

Hi,

m/N means that there are N patches and this patch is the mst one. e.g.
2/30 means the patch series contain 30 patches and this is the 2nd
one.

When a patch is resent, you'd better send it with [PACH vm], where m
is the version number.

Again, you missed Signed-off-by: line.

On Wed, May 25, 2011 at 6:20 PM, Ding Dinghua <[email protected]> wrote:
> drop jh->b_jcount in error path
> ---
> ?fs/jbd/transaction.c | ? ?2 +-
> ?1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
> index 60d2319..3f7bf84 100644
> --- a/fs/jbd/transaction.c
> +++ b/fs/jbd/transaction.c
> @@ -843,8 +843,8 @@ int journal_get_create_access(handle_t *handle, struct buffer_head *bh)
> ? ? ? ? */
> ? ? ? ?JBUFFER_TRACE(jh, "cancelling revoke");
> ? ? ? ?journal_cancel_revoke(handle, jh);
> - ? ? ? journal_put_journal_head(jh);
> ?out:
> + ? ? ? journal_put_journal_head(jh);
> ? ? ? ?return err;
> ?}
>
> --
> 1.7.4.1
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
> the body of a message to [email protected]
> More majordomo info at ?http://vger.kernel.org/majordomo-info.html
>



--
Best Wishes
Yongqiang Yang

2011-05-25 11:47:15

by Yongqiang Yang

[permalink] [raw]
Subject: Re: [PATCH 2/2] Jbd: fix a bug of leaking jh->b_jcount

On Wed, May 25, 2011 at 7:37 PM, Yongqiang Yang <[email protected]> wrote:
> Hi,
>
> m/N means that there are N patches and this patch is the mst one. e.g.
> 2/30 means the patch series contain 30 patches and this is the 2nd
> one.
>
> When a patch is resent, you'd better send it with [PACH vm], where m
> is the version number.
Sorry, two patches are different, please ignore comments above.
>
> Again, you missed Signed-off-by: line.
>
> On Wed, May 25, 2011 at 6:20 PM, Ding Dinghua <[email protected]> wrote:
>> drop jh->b_jcount in error path
>> ---
>> ?fs/jbd/transaction.c | ? ?2 +-
>> ?1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
>> index 60d2319..3f7bf84 100644
>> --- a/fs/jbd/transaction.c
>> +++ b/fs/jbd/transaction.c
>> @@ -843,8 +843,8 @@ int journal_get_create_access(handle_t *handle, struct buffer_head *bh)
>> ? ? ? ? */
>> ? ? ? ?JBUFFER_TRACE(jh, "cancelling revoke");
>> ? ? ? ?journal_cancel_revoke(handle, jh);
>> - ? ? ? journal_put_journal_head(jh);
>> ?out:
>> + ? ? ? journal_put_journal_head(jh);
>> ? ? ? ?return err;
>> ?}
>>
>> --
>> 1.7.4.1
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
>> the body of a message to [email protected]
>> More majordomo info at ?http://vger.kernel.org/majordomo-info.html
>>
>
>
>
> --
> Best Wishes
> Yongqiang Yang
>



--
Best Wishes
Yongqiang Yang

2011-05-25 13:48:33

by Theodore Ts'o

[permalink] [raw]
Subject: Re: [PATCH 2/2] Jbd: fix a bug of leaking jh->b_jcount

On Wed, May 25, 2011 at 07:47:14PM +0800, Yongqiang Yang wrote:
> On Wed, May 25, 2011 at 7:37 PM, Yongqiang Yang <[email protected]> wrote:
> > Hi,
> >
> > m/N means that there are N patches and this patch is the mst one. e.g.
> > 2/30 means the patch series contain 30 patches and this is the 2nd
> > one.
> >
> > When a patch is resent, you'd better send it with [PACH vm], where m
> > is the version number.
> Sorry, two patches are different, please ignore comments above.

... and this is why it's a REALLY GOOD IDEA to make patch 2/2 have a
In-Reply-To: header that references the message id of patch 1/2. It
avoids this sort of confusion.

And again, git format-patch and git send-email will do all of this
automatically for you...

- Ted