On Thu, 04 Jan 2018 16:17:50 +0800 "夷则(Caspar)"
wrote:
> > So, thinking caps on: why not just discard them? After all, that's
> > what userspace asked us to do.
>
> Hi Andrew, I doubt if "just discard them" is a proper action to match
> the userspace's expectation. Maybe we will never meet th
On 2018/1/4 19:34, Mel Gorman wrote:
On Thu, Jan 04, 2018 at 02:13:43PM +0800, ??(Caspar) wrote:
On 2018/1/3 18:48, Mel Gorman wrote:
On Wed, Jan 03, 2018 at 02:53:43PM +0800, ??(Caspar) wrote:
?? 2017??12??2312:16?? ??
From: "shidao.ytt"
in commit 441c228f817f7
On Thu, Jan 04, 2018 at 02:13:43PM +0800, ??(Caspar) wrote:
>
>
> On 2018/1/3 18:48, Mel Gorman wrote:
> > On Wed, Jan 03, 2018 at 02:53:43PM +0800, ??(Caspar) wrote:
> > >
> > >
> > > > ?? 2017??12??2312:16?? ??
> > > >
> > > > From: "shidao.ytt"
> > > >
> > > > in comm
On Wed, Jan 03, 2018 at 04:17:53PM -0800, Andrew Morton wrote:
> : invalidate_mapping_pages() takes start/end, but fadvise is currently passing
> : it start/len.
> :
> :
> :
> : mm/fadvise.c |8 ++--
> : 1 files changed, 6 insertions(+), 2 deletions(-)
> :
> : diff -puN mm/fadvise.c~fa
On 2018/1/4 08:17, Andrew Morton wrote:
On Wed, 3 Jan 2018 10:48:00 + Mel Gorman
wrote:
On Wed, Jan 03, 2018 at 02:53:43PM +0800, ??(Caspar) wrote:
?? 2017??12??2312:16?? ??
From: "shidao.ytt"
in commit 441c228f817f7 ("mm: fadvise: document the
fadvise(FADV_DONTN
On 2018/1/4 14:13, 夷则(Caspar) wrote:
This patch is trying to help to solve a real issue. Sometimes we need to
evict the whole file from page cache because we are sure it will not be
used in the near future. We try to use posix_fadvise() to finish our
work but we often see a "small tail" at
On 2018/1/3 18:48, Mel Gorman wrote:
On Wed, Jan 03, 2018 at 02:53:43PM +0800, ??(Caspar) wrote:
?? 2017??12??2312:16?? ??
From: "shidao.ytt"
in commit 441c228f817f7 ("mm: fadvise: document the
fadvise(FADV_DONTNEED) behaviour for partial pages") Mel Gorman
explained why
On Wed, 3 Jan 2018 10:48:00 + Mel Gorman
wrote:
> On Wed, Jan 03, 2018 at 02:53:43PM +0800, ??(Caspar) wrote:
> >
> >
> > > ?? 2017??12??2312:16?? ??
> > >
> > > From: "shidao.ytt"
> > >
> > > in commit 441c228f817f7 ("mm: fadvise: document the
> > > fadvise(FADV_DONTNE
On Wed, Jan 03, 2018 at 02:53:43PM +0800, ??(Caspar) wrote:
>
>
> > ?? 2017??12??2312:16?? ??
> >
> > From: "shidao.ytt"
> >
> > in commit 441c228f817f7 ("mm: fadvise: document the
> > fadvise(FADV_DONTNEED) behaviour for partial pages") Mel Gorman
> > explained why partial pa
> 在 2017年12月23日，12:16，十刀 写道：
>
> From: "shidao.ytt"
>
> in commit 441c228f817f7 ("mm: fadvise: document the
> fadvise(FADV_DONTNEED) behaviour for partial pages") Mel Gorman
> explained why partial pages should be preserved instead of discarded
> when using fadvise(FADV_DONTNEED), however the
From: "shidao.ytt"
in commit 441c228f817f7 ("mm: fadvise: document the
fadvise(FADV_DONTNEED) behaviour for partial pages") Mel Gorman
explained why partial pages should be preserved instead of discarded
when using fadvise(FADV_DONTNEED), however the actual codes to calcuate
end_index was unexpec
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