Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths

[RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · David Howells <dhowells@redhat.com> · 2021-09-24
[PATCH v3 1/9] mm: Remove the callback func argument from __swap_writepage() · David Howells <dhowells@redhat.com> · 2021-09-24
[PATCH v3 2/9] mm: Add 'supports' field to the address_space_operations to list features · David Howells <dhowells@redhat.com> · 2021-09-24
Re: [PATCH v3 2/9] mm: Add 'supports' field to the address_space_operations to list features · Matthew Wilcox <willy@infradead.org> · 2021-09-24
[PATCH v3 4/9] Introduce IOCB_SWAP kiocb flag to trigger REQ_SWAP · David Howells <dhowells@redhat.com> · 2021-09-24
Re: [PATCH v3 4/9] Introduce IOCB_SWAP kiocb flag to trigger REQ_SWAP · Dave Chinner <david@fromorbit.com> · 2021-09-26
[PATCH v3 3/9] mm: Make swap_readpage() void · David Howells <dhowells@redhat.com> · 2021-09-24
Re: [PATCH v3 3/9] mm: Make swap_readpage() void · Matthew Wilcox <willy@infradead.org> · 2021-09-24
[PATCH v3 5/9] mm: Make swap_readpage() for SWP_FS_OPS use ->swap_rw() not ->readpage() · David Howells <dhowells@redhat.com> · 2021-09-24
[PATCH v3 6/9] mm: Make __swap_writepage() do async DIO if asked for it · David Howells <dhowells@redhat.com> · 2021-09-24
[PATCH v3 7/9] nfs: Fix write to swapfile failure due to generic_write_checks() · David Howells <dhowells@redhat.com> · 2021-09-24
[PATCH v3 8/9] block, btrfs, ext4, xfs: Implement swap_rw · David Howells <dhowells@redhat.com> · 2021-09-24
[PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · David Howells <dhowells@redhat.com> · 2021-09-24
Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · Matthew Wilcox <willy@infradead.org> · 2021-09-25
Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · David Howells <dhowells@redhat.com> · 2021-09-25
Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · Matthew Wilcox <willy@infradead.org> · 2021-09-25
Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · Damien Le Moal <hidden> · 2021-09-26
Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · Dave Chinner <david@fromorbit.com> · 2021-09-27
Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · Damien Le Moal <hidden> · 2021-09-27
Re: [PATCH v3 9/9] mm: Remove swap BIO paths and only use DIO paths · David Sterba <hidden> · 2021-09-27
Re: [RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · Dave Chinner <david@fromorbit.com> · 2021-09-25
Re: [RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · Matthew Wilcox <willy@infradead.org> · 2021-09-26
Re: [RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · Dave Chinner <david@fromorbit.com> · 2021-09-26
Re: [RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · David Sterba <hidden> · 2021-09-27
Re: [RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · David Howells <dhowells@redhat.com> · 2021-09-29
Re: [RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · NeilBrown <hidden> · 2021-09-28
Re: [RFC][PATCH v3 0/9] mm: Use DIO for swap and fix NFS swapfiles · Steve French <smfrench@gmail.com> · 2021-09-30

From: Matthew Wilcox <willy@infradead.org>
Date: 2021-09-25 14:57:35
Also in: linux-block, linux-fsdevel, linux-mm, linux-xfs, lkml

On Fri, Sep 24, 2021 at 06:19:23PM +0100, David Howells wrote:

Delete the BIO-generating swap read/write paths and always use ->swap_rw().
This puts the mapping layer in the filesystem.

Is SWP_FS_OPS now unused after this patch?

Also, do we still need ->swap_activate and ->swap_deactivate?

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