On 2019/10/17 8:49, Andrew Morton wrote:
> On Wed, 16 Oct 2019 17:07:44 +0800 zhong jiang wrote:
>
--- a/mm/gup.c~a
+++ a/mm/gup.c
@@ -1450,6 +1450,7 @@ static long check_and_migrate_cma_pages(
bool drain_allow = true;
bool migrate_allow = true;
On Wed, 16 Oct 2019 17:07:44 +0800 zhong jiang wrote:
> >> --- a/mm/gup.c~a
> >> +++ a/mm/gup.c
> >> @@ -1450,6 +1450,7 @@ static long check_and_migrate_cma_pages(
> >> bool drain_allow = true;
> >> bool migrate_allow = true;
> >> LIST_HEAD(cma_page_list);
> >> +long ret;
>
On 9/5/19 8:18 AM, zhong jiang wrote:
> On 2019/9/5 2:48, Andrew Morton wrote:
> Firstly, I consider the some modified method as you has writen down above.
> It seems to work well.
> According to Vlastimil's feedback, I repost the patch in v2, changing the
> parameter to long to fix
> the
On 2019/9/5 2:48, Andrew Morton wrote:
> On Wed, 4 Sep 2019 13:24:58 +0200 Vlastimil Babka wrote:
>
>> On 9/4/19 12:26 PM, zhong jiang wrote:
>>> With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
>>> compare with zero. And __get_user_pages_locked will return an long value.
On 2019/9/4 19:24, Vlastimil Babka wrote:
> On 9/4/19 12:26 PM, zhong jiang wrote:
>> With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
>> compare with zero. And __get_user_pages_locked will return an long value.
>> Hence, Convert the long to compare with zero is feasible.
>
On 9/4/19 9:01 PM, Andrew Morton wrote:
> On Wed, 4 Sep 2019 13:24:58 +0200 Vlastimil Babka wrote:
>
>> On 9/4/19 12:26 PM, zhong jiang wrote:
>>> With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
>>> compare with zero. And __get_user_pages_locked will return an long value.
On 9/4/19 8:48 PM, Andrew Morton wrote:
> On Wed, 4 Sep 2019 13:24:58 +0200 Vlastimil Babka wrote:
>
>> On 9/4/19 12:26 PM, zhong jiang wrote:
>>> With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
>>> compare with zero. And __get_user_pages_locked will return an long value.
On Wed, 4 Sep 2019 13:24:58 +0200 Vlastimil Babka wrote:
> On 9/4/19 12:26 PM, zhong jiang wrote:
> > With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
> > compare with zero. And __get_user_pages_locked will return an long value.
> > Hence, Convert the long to compare with
On Wed, 4 Sep 2019 13:24:58 +0200 Vlastimil Babka wrote:
> On 9/4/19 12:26 PM, zhong jiang wrote:
> > With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
> > compare with zero. And __get_user_pages_locked will return an long value.
> > Hence, Convert the long to compare with
On Wed, Sep 04, 2019 at 06:25:19PM +, Weiny, Ira wrote:
> > On 9/4/19 12:26 PM, zhong jiang wrote:
> > > With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
> > > compare with zero. And __get_user_pages_locked will return an long
> > value.
> > > Hence, Convert the long to
On 9/4/19 12:26 PM, zhong jiang wrote:
> With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
> compare with zero. And __get_user_pages_locked will return an long value.
> Hence, Convert the long to compare with zero is feasible.
It would be nicer if the parameter nr_pages was
With the help of unsigned_lesser_than_zero.cocci. Unsigned 'nr_pages"'
compare with zero. And __get_user_pages_locked will return an long value.
Hence, Convert the long to compare with zero is feasible.
Signed-off-by: zhong jiang
---
mm/gup.c | 2 +-
1 file changed, 1 insertion(+), 1
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