mm: vmalloc: support multiple nodes in vread_iter

Extend the vread_iter() to be able to perform a sequential reading of VAs
which are spread among multiple nodes.  So a data read over the /dev/kmem
correctly reflects a vmalloc memory layout.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Uladzislau Rezki (Sony) <[email protected]>
Reviewed-by: Baoquan He <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Joel Fernandes (Google) <[email protected]>
Cc: Kazuhito Hagio <[email protected]>
Cc: Liam R. Howlett <[email protected]>
Cc: Lorenzo Stoakes <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Oleksiy Avramchenko <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions