Re: [RFC 0/8] Allow GFP_NOFS allocation to fail

2015-08-06 Thread Michal Hocko
On Wed 05-08-15 20:58:25, Andreas Dilger wrote: On Aug 5, 2015, at 3:51 AM, mho...@kernel.org wrote: [...] The rest are the FS specific patches to fortify allocations requests which are really needed to finish transactions without RO remounts. There might be more needed but my test case

[RFC 0/8] Allow GFP_NOFS allocation to fail

2015-08-05 Thread mhocko
Hi, small GFP_NOFS, like GFP_KERNEL, allocations have not been not failing traditionally even though their reclaim capabilities are restricted because the VM code cannot recurse into filesystems to clean dirty pages. At the same time these allocation requests do not allow to trigger the OOM killer

Re: [RFC 0/8] Allow GFP_NOFS allocation to fail

2015-08-05 Thread Andreas Dilger
On Aug 5, 2015, at 3:51 AM, mho...@kernel.org wrote: Hi, small GFP_NOFS, like GFP_KERNEL, allocations have not been not failing traditionally even though their reclaim capabilities are restricted because the VM code cannot recurse into filesystems to clean dirty pages. At the same time these