Re: [PATCH v4] mmap.2: MAP_FIXED updated documentation

2017-12-11 Thread Michal Hocko
On Sun 10-12-17 18:22:05, John Hubbard wrote: > On 12/10/2017 02:31 AM, Michal Hocko wrote: > > On Tue 05-12-17 19:14:34, john.hubb...@gmail.com wrote: > >> From: John Hubbard > >> > >> Previously, MAP_FIXED was "discouraged", due to portability > >> issues with the fixed address. In fact, there a

Re: [PATCH v4] mmap.2: MAP_FIXED updated documentation

2017-12-10 Thread John Hubbard
On 12/10/2017 02:31 AM, Michal Hocko wrote: > On Tue 05-12-17 19:14:34, john.hubb...@gmail.com wrote: >> From: John Hubbard >> >> Previously, MAP_FIXED was "discouraged", due to portability >> issues with the fixed address. In fact, there are other, more >> serious issues. Also, alignment requirem

Re: [PATCH v4] mmap.2: MAP_FIXED updated documentation

2017-12-10 Thread Michal Hocko
On Tue 05-12-17 19:14:34, john.hubb...@gmail.com wrote: > From: John Hubbard > > Previously, MAP_FIXED was "discouraged", due to portability > issues with the fixed address. In fact, there are other, more > serious issues. Also, alignment requirements were a bit vague. > So: > > -- Expand th

[PATCH v4] mmap.2: MAP_FIXED updated documentation

2017-12-05 Thread john . hubbard
From: John Hubbard Previously, MAP_FIXED was "discouraged", due to portability issues with the fixed address. In fact, there are other, more serious issues. Also, alignment requirements were a bit vague. So: -- Expand the documentation to discuss the hazards in enough detail to allow