From: Li Wang <liwang@ubuntukylin.com>
To: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Cong Wang <xiyou.wangcong@gmail.com>,
Zefan Li <lizefan@huawei.com>, Matthew Wilcox <matthew@wil.cx>,
Li Wang <liwang@ubuntukylin.com>,
Yunchuan Wen <yunchuanwen@ubuntukylin.com>
Subject: [PATCH 3/3] Fadvise: Add the ability for directory level page cache cleaning
Date: Mon, 30 Dec 2013 21:45:18 +0800 [thread overview]
Message-ID: <c31e91f1cea4afc0d86671fbe84f70d8d5d11329.1388409687.git.liwang@ubuntukylin.com> (raw)
In-Reply-To: <cover.1388409686.git.liwang@ubuntukylin.com>
In-Reply-To: <cover.1388409686.git.liwang@ubuntukylin.com>
Signed-off-by: Li Wang <liwang@ubuntukylin.com>
Signed-off-by: Yunchuan Wen <yunchuanwen@ubuntukylin.com>
---
mm/fadvise.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/fadvise.c b/mm/fadvise.c
index 3bcfd81..644d32d 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -113,6 +113,10 @@ SYSCALL_DEFINE4(fadvise64_64, int, fd, loff_t, offset, loff_t, len, int, advice)
case POSIX_FADV_NOREUSE:
break;
case POSIX_FADV_DONTNEED:
+ if (S_ISDIR(file_inode(f.file)->i_mode)) {
+ shrink_pagecache_parent(f.file->f_dentry);
+ goto out;
+ }
if (!bdi_write_congested(mapping->backing_dev_info))
__filemap_fdatawrite_range(mapping, offset, endbyte,
WB_SYNC_NONE);
--
1.7.9.5
--
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next prev parent reply other threads:[~2013-12-30 13:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-30 13:45 [PATCH 0/3] Fadvise: Directory level page cache cleaning support Li Wang
2013-12-30 13:45 ` [PATCH 1/3] VFS: Add the declaration of shrink_pagecache_parent Li Wang
2013-12-30 13:45 ` [PATCH 2/3] Add shrink_pagecache_parent Li Wang
2014-01-02 23:55 ` Andrew Morton
2014-01-06 13:30 ` Dave Chinner
2014-01-08 2:06 ` Li Wang
2014-01-15 0:22 ` Dave Chinner
2013-12-30 13:45 ` Li Wang [this message]
2013-12-30 14:57 ` [PATCH 0/3] Fadvise: Directory level page cache cleaning support Matthew Wilcox
2013-12-30 19:18 ` Dave Hansen
2013-12-30 19:40 ` Andreas Dilger
2013-12-30 21:33 ` Dave Hansen
2014-01-02 12:44 ` Li Wang
2014-01-02 18:35 ` Dave Hansen
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