On 12/01/2017 5:37 PM, Michal Hocko wrote:
From: Michal Hocko <mhocko@xxxxxxxx> There are many code paths opencoding kvmalloc. Let's use the helper instead. The main difference to kvmalloc is that those users are usually not considering all the aspects of the memory allocator. E.g. allocation requests < 64kB are basically never failing and invoke OOM killer to satisfy the allocation. This sounds too disruptive for something that has a reasonable fallback - the vmalloc. On the other hand those requests might fallback to vmalloc even when the memory allocator would succeed after several more reclaim/compaction attempts previously. There is no guarantee something like that happens though. This patch converts many of those places to kv[mz]alloc* helpers because they are more conservative. Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: Anton Vorontsov <anton@xxxxxxxxxx> Cc: Colin Cross <ccross@xxxxxxxxxxx> Cc: Kees Cook <keescook@xxxxxxxxxxxx> Cc: Tony Luck <tony.luck@xxxxxxxxx> Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx> Cc: Ben Skeggs <bskeggs@xxxxxxxxxx> Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx> Cc: Santosh Raspatur <santosh@xxxxxxxxxxx> Cc: Hariprasad S <hariprasad@xxxxxxxxxxx> Cc: Tariq Toukan <tariqt@xxxxxxxxxxxx> Cc: Yishai Hadas <yishaih@xxxxxxxxxxxx> Cc: Dan Williams <dan.j.williams@xxxxxxxxx> Cc: Oleg Drokin <oleg.drokin@xxxxxxxxx> Cc: Andreas Dilger <andreas.dilger@xxxxxxxxx> Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> Cc: David Sterba <dsterba@xxxxxxxx> Cc: "Yan, Zheng" <zyan@xxxxxxxxxx> Cc: Ilya Dryomov <idryomov@xxxxxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Alexei Starovoitov <ast@xxxxxxxxxx> Cc: Eric Dumazet <eric.dumazet@xxxxxxxxx> Cc: netdev@xxxxxxxxxxxxxxx Signed-off-by: Michal Hocko <mhocko@xxxxxxxx> ---
Acked-by: Tariq Toukan <tariqt@xxxxxxxxxxxx> For the mlx4 parts. Regards. Tariq -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>