RE: [PATCH v2] storvsc: get rid of bounce buffer

2015-09-23 Thread KY Srinivasan
. Bottomley ; > Radim Krčmář ; Christoph Hellwig > > Subject: [PATCH v2] storvsc: get rid of bounce buffer > > Storvsc driver needs to ensure there are no 'holes' in the presented > sg list (all segments in the middle of the list need to be of PAGE_SIZE). > When a h

[PATCH v2] storvsc: get rid of bounce buffer

2015-09-23 Thread Vitaly Kuznetsov
Storvsc driver needs to ensure there are no 'holes' in the presented sg list (all segments in the middle of the list need to be of PAGE_SIZE). When a hole is detected storvsc driver creates a 'bounce sgl' without holes and copies data over with copy_{to,from}_bounce_buffer() functions. Setting virt