* Re: [PATCH] blkcg: Fix memory leak in blkg_conf_prep()
@ 2020-05-15 15:08 Markus Elfring
2020-05-18 11:34 ` Wu Bo
0 siblings, 1 reply; 2+ messages in thread
From: Markus Elfring @ 2020-05-15 15:08 UTC (permalink / raw)
To: Wu Bo, cgroups, linux-block
Cc: linux-kernel, kernel-janitors, Feilong Lin, Jens Axboe,
Tejun Heo, Zhiqiang Liu
…
> new_blkg = blkg_alloc(pos, q, GFP_KERNEL);
…
I suggest to omit the source code quotation from the change description.
> if calling blkg_lookup_check() failed, at the IS_ERR block,
> the new_blkg should be free before goto lable fail_unlock
> in blkg_conf_prep() function.
How do you think about a wording variant like the following?
If a call of the function “blkg_lookup_check” failed,
release the previously allocated block group before jumping
to the target “fail_unlock” in the implementation of
the function “blkg_conf_prep”.
Would you like to add the tag “Fixes” to the commit message?
Regards,
Markus
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] blkcg: Fix memory leak in blkg_conf_prep()
2020-05-15 15:08 [PATCH] blkcg: Fix memory leak in blkg_conf_prep() Markus Elfring
@ 2020-05-18 11:34 ` Wu Bo
0 siblings, 0 replies; 2+ messages in thread
From: Wu Bo @ 2020-05-18 11:34 UTC (permalink / raw)
To: Markus Elfring, cgroups, linux-block
Cc: linux-kernel, kernel-janitors, Feilong Lin, Jens Axboe,
Tejun Heo, Zhiqiang Liu
On 2020/5/15 23:08, Markus Elfring wrote:
> …
>> new_blkg = blkg_alloc(pos, q, GFP_KERNEL);
> …
>
> I suggest to omit the source code quotation from the change description.
>
>
>> if calling blkg_lookup_check() failed, at the IS_ERR block,
>> the new_blkg should be free before goto lable fail_unlock
>> in blkg_conf_prep() function.
>
> How do you think about a wording variant like the following?
>
> If a call of the function “blkg_lookup_check” failed,
> release the previously allocated block group before jumping
> to the target “fail_unlock” in the implementation of
> the function “blkg_conf_prep”.
>
Thanks for your suggestion. omit the source code quotation from the
description is more friendly. I will modify the description in V2 patch.
Thanks,
Wu Bo
>
> Would you like to add the tag “Fixes” to the commit message?
>
> Regards,
> Markus
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-05-15 15:08 [PATCH] blkcg: Fix memory leak in blkg_conf_prep() Markus Elfring
2020-05-18 11:34 ` Wu Bo
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