Messages in this thread | | | Date | Mon, 25 Jan 2016 21:46:54 +0900 | From | Sergey Senozhatsky <> | Subject | [stable] upstream 3d5fe03a3ea01 -stable backport request |
| |
Hello,
Please add upstream 'commit 3d5fe03a3ea01 ("zram/zcomp: use GFP_NOIO to allocate streams")' to stable releases.
:commit 3d5fe03a3ea013060ebba2a811aeb0f23f56aefa :Author: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> : : zram/zcomp: use GFP_NOIO to allocate streams : : We can end up allocating a new compression stream with GFP_KERNEL from : within the IO path, which may result is nested (recursive) IO : operations. That can introduce problems if the IO path in question is a : reclaimer, holding some locks that will deadlock nested IOs. : : Allocate streams and working memory using GFP_NOIO flag, forbidding : recursive IO and FS operations.
-ss
| |