21 Nov
2019
21 Nov
'19
8:07 a.m.
On Wed, Nov 20, 2019 at 11:13:37PM -0800, John Hubbard wrote:
And get rid of the mmap_sem calls, as part of that. Note that get_user_pages_fast() will, if necessary, fall back to __gup_longterm_unlocked(), which takes the mmap_sem as needed.
Reviewed-by: Jan Kara jack@suse.cz Reviewed-by: Jason Gunthorpe jgg@mellanox.com Reviewed-by: Ira Weiny ira.weiny@intel.com Signed-off-by: John Hubbard jhubbard@nvidia.com
Looks fine,
Reviewed-by: Christoph Hellwig hch@lst.de
Jason, can you queue this up for 5.5 to reduce this patch stack a bit?