On Wed, Apr 05, 2023 at 05:44:36PM -0700, Eric Biggers wrote:
> > Not vmalloc'ed, but vmapped. we allocate the pages individually, but
> > then call vm_map_page() to present the higher level code with a
> > single contiguous memory range if it is a multi-page buffer.
> >
> > We do have the backing
On Thu, Apr 06, 2023 at 09:37:53AM +1000, Dave Chinner wrote:
> On Wed, Apr 05, 2023 at 10:54:06PM +, Eric Biggers wrote:
> > On Thu, Apr 06, 2023 at 08:26:46AM +1000, Dave Chinner wrote:
> > > > We could certainly think about moving to a design where fs/verity/ asks
> > > > the
> > > > filesy
On Wed, Apr 05, 2023 at 10:54:06PM +, Eric Biggers wrote:
> On Thu, Apr 06, 2023 at 08:26:46AM +1000, Dave Chinner wrote:
> > > We could certainly think about moving to a design where fs/verity/ asks
> > > the
> > > filesystem to just *read* a Merkle tree block, without adding it to a
> > > c
On Thu, Apr 06, 2023 at 08:26:46AM +1000, Dave Chinner wrote:
> > We could certainly think about moving to a design where fs/verity/ asks the
> > filesystem to just *read* a Merkle tree block, without adding it to a
> > cache, and
> > then fs/verity/ implements the caching itself. That would requ
On Wed, Apr 05, 2023 at 05:12:34PM +0200, Andrey Albershteyn wrote:
> Hi Eric,
>
> On Tue, Apr 04, 2023 at 04:32:24PM -0700, Eric Biggers wrote:
> > Hi Andrey,
> >
> > On Tue, Apr 04, 2023 at 04:53:17PM +0200, Andrey Albershteyn wrote:
> > > In case of different Merkle tree block size fs-verity e
On Wed, Apr 05, 2023 at 06:16:00PM +, Eric Biggers wrote:
> On Wed, Apr 05, 2023 at 09:38:47AM -0700, Darrick J. Wong wrote:
> > > The merkle tree pages are dropped after verification. When page is
> > > dropped xfs_buf is marked as verified. If fs-verity wants to
> > > verify again it will get
On Wed, Apr 05, 2023 at 09:38:47AM -0700, Darrick J. Wong wrote:
> > The merkle tree pages are dropped after verification. When page is
> > dropped xfs_buf is marked as verified. If fs-verity wants to
> > verify again it will get the same verified buffer. If buffer is
> > evicted it won't have veri
On Wed, Apr 05, 2023 at 06:02:21PM +0200, Andrey Albershteyn wrote:
> Hi Darrick,
>
> On Tue, Apr 04, 2023 at 09:36:02AM -0700, Darrick J. Wong wrote:
> > On Tue, Apr 04, 2023 at 04:53:17PM +0200, Andrey Albershteyn wrote:
> > > In case of different Merkle tree block size fs-verity expects
> > > -
Hi Darrick,
On Tue, Apr 04, 2023 at 09:36:02AM -0700, Darrick J. Wong wrote:
> On Tue, Apr 04, 2023 at 04:53:17PM +0200, Andrey Albershteyn wrote:
> > In case of different Merkle tree block size fs-verity expects
> > ->read_merkle_tree_page() to return Merkle tree page filled with
> > Merkle tree
Hi Eric,
On Tue, Apr 04, 2023 at 04:32:24PM -0700, Eric Biggers wrote:
> Hi Andrey,
>
> On Tue, Apr 04, 2023 at 04:53:17PM +0200, Andrey Albershteyn wrote:
> > In case of different Merkle tree block size fs-verity expects
> > ->read_merkle_tree_page() to return Merkle tree page filled with
> > Me
Hi Andrey,
On Tue, Apr 04, 2023 at 04:53:17PM +0200, Andrey Albershteyn wrote:
> In case of different Merkle tree block size fs-verity expects
> ->read_merkle_tree_page() to return Merkle tree page filled with
> Merkle tree blocks. The XFS stores each merkle tree block under
> extended attribute.
On Tue, Apr 04, 2023 at 04:53:17PM +0200, Andrey Albershteyn wrote:
> In case of different Merkle tree block size fs-verity expects
> ->read_merkle_tree_page() to return Merkle tree page filled with
> Merkle tree blocks. The XFS stores each merkle tree block under
> extended attribute. Those attrib
In case of different Merkle tree block size fs-verity expects
->read_merkle_tree_page() to return Merkle tree page filled with
Merkle tree blocks. The XFS stores each merkle tree block under
extended attribute. Those attributes are addressed by block offset
into Merkle tree.
This patch make ->read
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