linux-kernel - [PATCH] f2fs: add description about small

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Date:	Thu, 19 Dec 2013 17:49:13 +0900
From:	Jaegeuk Kim <jaegeuk.kim@...sung.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	Jaegeuk Kim <jaegeuk.kim@...sung.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net
Subject: [PATCH] f2fs: add description about small_discards in document

This patch adds a description about small_disacrds in the f2fs document.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@...sung.com>
---
 Documentation/filesystems/f2fs.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 6de2102..1073970 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -173,6 +173,12 @@ Files in /sys/fs/f2fs/<devname>
 			      conduct checkpoint to reclaim the prefree segments
 			      to free segments. By default, 100 segments, 200MB.
 
+ max_small_discards	      This parameter controls the number of discard
+			      commands that consist small blocks less than 2MB.
+			      The candidates to be discarded are cached until
+			      checkpoint is triggered, and issued during the
+			      checkpoint. By default, it is disabled with 0.
+
  ipu_policy                   This parameter controls the policy of in-place
                               updates in f2fs. There are five policies:
                                0: F2FS_IPU_FORCE, 1: F2FS_IPU_SSR,
-- 
1.8.4.474.g128a96c

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