From: Rik van Riel <riel@redhat.com>
To: Andrea Righi <andrea@betterlinux.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
"Minchan Kim" <minchan.kim@gmail.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@jp.fujitsu.com>,
"Andrea Arcangeli" <aarcange@redhat.com>,
"Hugh Dickins" <hughd@google.com>,
"Jerry James" <jamesjer@betterlinux.com>,
"Marcus Sorensen" <marcus@bluehost.com>,
"Matt Heaton" <matt@bluehost.com>,
"KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com>,
"Theodore Tso" <tytso@mit.edu>,
"Shaohua Li" <shaohua.li@intel.com>,
"Pádraig Brady" <P@draigBrady.com>, linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 2/2] fadvise: implement POSIX_FADV_NOREUSE
Date: Sun, 26 Jun 2011 18:47:37 -0400 [thread overview]
Message-ID: <4E07B709.9010306@redhat.com> (raw)
In-Reply-To: <1308923350-7932-3-git-send-email-andrea@betterlinux.com>
On 06/24/2011 09:49 AM, Andrea Righi wrote:
> @@ -114,7 +114,8 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice)
> ret = 0;
> break;
> case POSIX_FADV_NOREUSE:
> - break;
> + /* Reduce cache eligibility */
> + force = false;
> case POSIX_FADV_DONTNEED:
> if (!bdi_write_congested(mapping->backing_dev_info))
> filemap_flush(mapping);
And the same is true here. "force" is just not a very
descriptive name.
> @@ -124,8 +125,8 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice)
> end_index = (endbyte>> PAGE_CACHE_SHIFT);
>
> if (end_index>= start_index)
> - invalidate_mapping_pages(mapping, start_index,
> - end_index);
> + __invalidate_mapping_pages(mapping, start_index,
> + end_index, force);
> break;
> default:
> ret = -EINVAL;
--
All rights reversed
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Andrea Righi <andrea@betterlinux.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
"Minchan Kim" <minchan.kim@gmail.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@jp.fujitsu.com>,
"Andrea Arcangeli" <aarcange@redhat.com>,
"Hugh Dickins" <hughd@google.com>,
"Jerry James" <jamesjer@betterlinux.com>,
"Marcus Sorensen" <marcus@bluehost.com>,
"Matt Heaton" <matt@bluehost.com>,
"KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com>,
"Theodore Tso" <tytso@mit.edu>,
"Shaohua Li" <shaohua.li@intel.com>,
"Pádraig Brady" <P@draigBrady.com>, linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 2/2] fadvise: implement POSIX_FADV_NOREUSE
Date: Sun, 26 Jun 2011 18:47:37 -0400 [thread overview]
Message-ID: <4E07B709.9010306@redhat.com> (raw)
In-Reply-To: <1308923350-7932-3-git-send-email-andrea@betterlinux.com>
On 06/24/2011 09:49 AM, Andrea Righi wrote:
> @@ -114,7 +114,8 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice)
> ret = 0;
> break;
> case POSIX_FADV_NOREUSE:
> - break;
> + /* Reduce cache eligibility */
> + force = false;
> case POSIX_FADV_DONTNEED:
> if (!bdi_write_congested(mapping->backing_dev_info))
> filemap_flush(mapping);
And the same is true here. "force" is just not a very
descriptive name.
> @@ -124,8 +125,8 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice)
> end_index = (endbyte>> PAGE_CACHE_SHIFT);
>
> if (end_index>= start_index)
> - invalidate_mapping_pages(mapping, start_index,
> - end_index);
> + __invalidate_mapping_pages(mapping, start_index,
> + end_index, force);
> break;
> default:
> ret = -EINVAL;
--
All rights reversed
--
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next prev parent reply other threads:[~2011-06-26 22:49 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-24 13:49 [PATCH v3 0/2] fadvise: support POSIX_FADV_NOREUSE Andrea Righi
2011-06-24 13:49 ` Andrea Righi
2011-06-24 13:49 ` [PATCH v3 1/2] mm: introduce __invalidate_mapping_pages() Andrea Righi
2011-06-24 13:49 ` Andrea Righi
2011-06-26 22:46 ` Rik van Riel
2011-06-26 22:46 ` Rik van Riel
2011-06-27 7:05 ` Andrea Righi
2011-06-27 7:05 ` Andrea Righi
2011-06-24 13:49 ` [PATCH v3 2/2] fadvise: implement POSIX_FADV_NOREUSE Andrea Righi
2011-06-24 13:49 ` Andrea Righi
2011-06-26 22:47 ` Rik van Riel [this message]
2011-06-26 22:47 ` Rik van Riel
2011-06-27 7:05 ` Andrea Righi
2011-06-27 7:05 ` Andrea Righi
2011-06-27 3:04 ` [PATCH v3 0/2] fadvise: support POSIX_FADV_NOREUSE KOSAKI Motohiro
2011-06-27 3:04 ` KOSAKI Motohiro
2011-06-27 7:11 ` Andrea Righi
2011-06-27 7:11 ` Andrea Righi
2011-06-27 7:42 ` KOSAKI Motohiro
2011-06-27 7:42 ` KOSAKI Motohiro
2011-06-27 10:17 ` Pádraig Brady
2011-06-27 10:17 ` Pádraig Brady
2011-06-27 10:29 ` Andrea Righi
2011-06-27 10:29 ` Andrea Righi
2011-06-27 11:53 ` Pádraig Brady
2011-06-27 11:53 ` Pádraig Brady
2011-06-27 12:39 ` Andrea Righi
2011-06-27 12:39 ` Andrea Righi
2011-07-12 21:52 ` Patrick J. LoPresti
2011-07-12 22:22 ` Andrea Righi
2011-07-13 0:36 ` Patrick J. LoPresti
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