On 30.03.23 03:25, Alistair Popple wrote:
Device exclusive page table entries are used to prevent CPU access to
a page whilst it is being accessed from a device. Typically this is
used to implement atomic operations when the underlying bus does not
support atomic access. When a CPU thread
s/page/folio/ in the entire commit log?
Christoph Hellwig writes:
> s/page/folio/ in the entire commit log?
I debated that but settled on leaving it as is because device exclusive
entries only deal with non-compound pages for now and didn't want to
give any other impression. Happy to change that though if people think
it would be
On 3/29/23 18:25, Alistair Popple wrote:
Device exclusive page table entries are used to prevent CPU access to
a page whilst it is being accessed from a device. Typically this is
used to implement atomic operations when the underlying bus does not
support atomic access. When a CPU thread
Device exclusive page table entries are used to prevent CPU access to
a page whilst it is being accessed from a device. Typically this is
used to implement atomic operations when the underlying bus does not
support atomic access. When a CPU thread encounters a device exclusive
entry it locks the
