Re: [PATCH 08/20] mm: Allow full handling of COW faults in ->fault handlers

[PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Jan Kara <jack@suse.cz> · 2016-09-27
[PATCH 01/20] mm: Change type of vmf->virtual_address · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 01/20] mm: Change type of vmf->virtual_address · Christoph Hellwig <hch@infradead.org> · 2016-09-30
Re: [PATCH 01/20] mm: Change type of vmf->virtual_address · Ross Zwisler <hidden> · 2016-10-14
[PATCH 02/20] mm: Join struct fault_env and vm_fault · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 02/20] mm: Join struct fault_env and vm_fault · Christoph Hellwig <hch@infradead.org> · 2016-09-30
Re: [PATCH 02/20] mm: Join struct fault_env and vm_fault · Jan Kara <jack@suse.cz> · 2016-10-03
[PATCH 04/20] mm: Use passed vm_fault structure in __do_fault() · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 04/20] mm: Use passed vm_fault structure in __do_fault() · Ross Zwisler <hidden> · 2016-10-14
[PATCH 05/20] mm: Trim __do_fault() arguments · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 05/20] mm: Trim __do_fault() arguments · Ross Zwisler <hidden> · 2016-10-14
Re: [PATCH 05/20] mm: Trim __do_fault() arguments · Jan Kara <jack@suse.cz> · 2016-10-17
[PATCH 07/20] mm: Add orig_pte field into vm_fault · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 07/20] mm: Add orig_pte field into vm_fault · Ross Zwisler <hidden> · 2016-10-17
Re: [PATCH 07/20] mm: Add orig_pte field into vm_fault · Jan Kara <jack@suse.cz> · 2016-10-18
[PATCH 09/20] mm: Factor out functionality to finish page faults · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 09/20] mm: Factor out functionality to finish page faults · Ross Zwisler <hidden> · 2016-10-17
Re: [PATCH 09/20] mm: Factor out functionality to finish page faults · Ross Zwisler <hidden> · 2016-10-17
Re: [PATCH 09/20] mm: Factor out functionality to finish page faults · Jan Kara <jack@suse.cz> · 2016-10-18
[PATCH 10/20] mm: Move handling of COW faults into DAX code · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 10/20] mm: Move handling of COW faults into DAX code · Ross Zwisler <hidden> · 2016-10-17
Re: [PATCH 10/20] mm: Move handling of COW faults into DAX code · Jan Kara <jack@suse.cz> · 2016-10-18
[PATCH 11/20] mm: Remove unnecessary vma->vm_ops check · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 11/20] mm: Remove unnecessary vma->vm_ops check · Ross Zwisler <hidden> · 2016-10-17
Re: [PATCH 11/20] mm: Remove unnecessary vma->vm_ops check · Jan Kara <jack@suse.cz> · 2016-10-18
[PATCH 12/20] mm: Factor out common parts of write fault handling · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 12/20] mm: Factor out common parts of write fault handling · Ross Zwisler <hidden> · 2016-10-17
Re: [PATCH 12/20] mm: Factor out common parts of write fault handling · Jan Kara <jack@suse.cz> · 2016-10-18
Re: [PATCH 12/20] mm: Factor out common parts of write fault handling · Ross Zwisler <hidden> · 2016-10-18
[PATCH 13/20] mm: Pass vm_fault structure into do_page_mkwrite() · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 13/20] mm: Pass vm_fault structure into do_page_mkwrite() · Ross Zwisler <hidden> · 2016-10-17
[PATCH 14/20] mm: Use vmf->page during WP faults · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 14/20] mm: Use vmf->page during WP faults · Ross Zwisler <hidden> · 2016-10-18
[PATCH 17/20] mm: Export follow_pte() · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 17/20] mm: Export follow_pte() · Ross Zwisler <hidden> · 2016-10-18
[PATCH 18/20] dax: Make cache flushing protected by entry lock · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 18/20] dax: Make cache flushing protected by entry lock · Ross Zwisler <hidden> · 2016-10-18
Re: [PATCH 18/20] dax: Make cache flushing protected by entry lock · Jan Kara <jack@suse.cz> · 2016-10-19
Re: [PATCH 18/20] dax: Make cache flushing protected by entry lock · Ross Zwisler <hidden> · 2016-10-19
[PATCH 06/20] mm: Use pass vm_fault structure for in wp_pfn_shared() · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 06/20] mm: Use pass vm_fault structure for in wp_pfn_shared() · Ross Zwisler <hidden> · 2016-10-14
[PATCH 03/20] mm: Use pgoff in struct vm_fault instead of passing it separately · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 03/20] mm: Use pgoff in struct vm_fault instead of passing it separately · Ross Zwisler <hidden> · 2016-10-14
Re: [PATCH 03/20] mm: Use pgoff in struct vm_fault instead of passing it separately · Jan Kara <jack@suse.cz> · 2016-10-17
[PATCH 08/20] mm: Allow full handling of COW faults in ->fault handlers · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 08/20] mm: Allow full handling of COW faults in ->fault handlers · Ross Zwisler <hidden> · 2016-10-17
[PATCH 19/20] dax: Protect PTE modification on WP fault by radix tree entry lock · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 19/20] dax: Protect PTE modification on WP fault by radix tree entry lock · Ross Zwisler <hidden> · 2016-10-18
Re: [PATCH 19/20] dax: Protect PTE modification on WP fault by radix tree entry lock · Jan Kara <jack@suse.cz> · 2016-10-19
Re: [PATCH 19/20] dax: Protect PTE modification on WP fault by radix tree entry lock · Ross Zwisler <hidden> · 2016-10-19
[PATCH 16/20] mm: Provide helper for finishing mkwrite faults · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 16/20] mm: Provide helper for finishing mkwrite faults · Ross Zwisler <hidden> · 2016-10-18
Re: [PATCH 16/20] mm: Provide helper for finishing mkwrite faults · Jan Kara <jack@suse.cz> · 2016-10-19
Re: [PATCH 16/20] mm: Provide helper for finishing mkwrite faults · Ross Zwisler <hidden> · 2016-10-19
Re: [PATCH 16/20] mm: Provide helper for finishing mkwrite faults · Jan Kara <jack@suse.cz> · 2016-10-20
[PATCH 15/20] mm: Move part of wp_page_reuse() into the single call site · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 15/20] mm: Move part of wp_page_reuse() into the single call site · Ross Zwisler <hidden> · 2016-10-18
[PATCH 20/20] dax: Clear dirty entry tags on cache flush · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH 20/20] dax: Clear dirty entry tags on cache flush · Ross Zwisler <hidden> · 2016-10-18
Re: [PATCH 20/20] dax: Clear dirty entry tags on cache flush · Jan Kara <jack@suse.cz> · 2016-10-19
Re: [PATCH 20/20] dax: Clear dirty entry tags on cache flush · Ross Zwisler <hidden> · 2016-10-19
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Christoph Hellwig <hch@infradead.org> · 2016-09-30
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Jan Kara <jack@suse.cz> · 2016-10-03
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Christoph Hellwig <hch@infradead.org> · 2016-10-03
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Jan Kara <jack@suse.cz> · 2016-10-03
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Christoph Hellwig <hch@infradead.org> · 2016-10-03
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Jan Kara <jack@suse.cz> · 2016-10-03
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Ross Zwisler <hidden> · 2016-10-13
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Jan Kara <jack@suse.cz> · 2016-10-17
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Ross Zwisler <hidden> · 2016-10-17
Re: [PATCH 0/20 v3] dax: Clear dirty bits after flushing caches · Jan Kara <jack@suse.cz> · 2016-10-18

From: Ross Zwisler <hidden>
Date: 2016-10-17 16:50:15
Also in: linux-fsdevel, nvdimm

On Tue, Sep 27, 2016 at 06:08:12PM +0200, Jan Kara wrote:

To allow full handling of COW faults add memcg field to struct vm_fault
and a return value of ->fault() handler meaning that COW fault is fully
handled and memcg charge must not be canceled. This will allow us to
remove knowledge about special DAX locking from the generic fault code.

Signed-off-by: Jan Kara <jack@suse.cz>

Reviewed-by: Ross Zwisler <redacted>

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