Alistair Popple wrote:
> On Wed, Jan 08, 2025 at 04:14:20PM -0800, Dan Williams wrote:
> > Alistair Popple wrote:
> > > Prior to freeing a block file systems supporting FS DAX must check
> > > that the associated pages are both unmapped from user-space and not
> > > undergoing DMA or other access f
On Wed, Jan 08, 2025 at 04:14:20PM -0800, Dan Williams wrote:
> Alistair Popple wrote:
> > Prior to freeing a block file systems supporting FS DAX must check
> > that the associated pages are both unmapped from user-space and not
> > undergoing DMA or other access from eg. get_user_pages(). This is
Alistair Popple wrote:
> Prior to freeing a block file systems supporting FS DAX must check
> that the associated pages are both unmapped from user-space and not
> undergoing DMA or other access from eg. get_user_pages(). This is
> achieved by unmapping the file range and scanning the FS DAX
> page
Prior to freeing a block file systems supporting FS DAX must check
that the associated pages are both unmapped from user-space and not
undergoing DMA or other access from eg. get_user_pages(). This is
achieved by unmapping the file range and scanning the FS DAX
page-cache to see if any pages within
