Re: [RFC PATCH v2 3/3] block: Always use a bounce buffer when XPFO is enabled

2016-09-14 Thread Christoph Hellwig
On Wed, Sep 14, 2016 at 09:19:01AM +0200, Juerg Haefliger wrote: > This is a temporary hack to prevent the use of bio_map_user_iov() > which causes XPFO page faults. > > Signed-off-by: Juerg Haefliger Sorry, but if your scheme doesn't support get_user_pages access to user memory is't a steaming

[RFC PATCH v2 3/3] block: Always use a bounce buffer when XPFO is enabled

2016-09-14 Thread Juerg Haefliger
This is a temporary hack to prevent the use of bio_map_user_iov() which causes XPFO page faults. Signed-off-by: Juerg Haefliger --- block/blk-map.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-map.c b/block/blk-map.c index b8657fa8dc9a..e889dbfee6fb 100644 --- a/

[RFC PATCH v2 3/3] block: Always use a bounce buffer when XPFO is enabled

2016-09-02 Thread Juerg Haefliger
This is a temporary hack to prevent the use of bio_map_user_iov() which causes XPFO page faults. Signed-off-by: Juerg Haefliger --- block/blk-map.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-map.c b/block/blk-map.c index b8657fa8dc9a..e889dbfee6fb 100644 --- a/