Re: [PATCH 17/19] powerpc: book3s64: convert to pin_user_pages() and put_user_page()

2019-11-25 Thread John Hubbard
On 11/25/19 12:59 AM, Jan Kara wrote: > On Sun 24-11-19 20:20:09, John Hubbard wrote: >> 1. Convert from get_user_pages() to pin_user_pages(). >> >> 2. As required by pin_user_pages(), release these pages via >> put_user_page(). In this case, do so via put_user_pages_dirty_lock(). >> >> That has th

Re: [PATCH 17/19] powerpc: book3s64: convert to pin_user_pages() and put_user_page()

2019-11-25 Thread Jan Kara
On Sun 24-11-19 20:20:09, John Hubbard wrote: > 1. Convert from get_user_pages() to pin_user_pages(). > > 2. As required by pin_user_pages(), release these pages via > put_user_page(). In this case, do so via put_user_pages_dirty_lock(). > > That has the side effect of calling set_page_dirty_lock

[PATCH 17/19] powerpc: book3s64: convert to pin_user_pages() and put_user_page()

2019-11-24 Thread John Hubbard
1. Convert from get_user_pages() to pin_user_pages(). 2. As required by pin_user_pages(), release these pages via put_user_page(). In this case, do so via put_user_pages_dirty_lock(). That has the side effect of calling set_page_dirty_lock(), instead of set_page_dirty(). This is probably more acc