On Thu, Oct 29, 2020 at 06:44:46PM +0800, Alex Shi wrote:
> Add VM_WARN_ON_ONCE_PAGE() macro.
>
> Since readahead page is charged on memcg too, in theory we don't have to
> check this exception now. Before safely remove them all, add a warning
> for the unexpected !memcg.
>
> Signed-off-by: Alex
Add VM_WARN_ON_ONCE_PAGE() macro.
Since readahead page is charged on memcg too, in theory we don't have to
check this exception now. Before safely remove them all, add a warning
for the unexpected !memcg.
Signed-off-by: Alex Shi
Acked-by: Michal Hocko
Acked-by: Hugh Dickins
Cc: Johannes
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