linux-kernel - [f2fs-dev 0/5] f2fs: Enable f2fs support inline data

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Message-Id: <1382716919-23345-1-git-send-email-huajun.li.lee@gmail.com>
Date:	Sat, 26 Oct 2013 00:01:54 +0800
From:	Huajun Li <huajun.li.lee@...il.com>
To:	jaegeuk.kim@...sung.com, linux-f2fs-devel@...ts.sourceforge.net
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Huajun Li <huajun.li@...el.com>
Subject: [f2fs-dev 0/5] f2fs: Enable f2fs support inline data

From: Huajun Li <huajun.li@...el.com>

f2fs inode is so large, so small files can be stored directly in the inode,
rather than just storing a single block address and storing the data elsewhere.

This patch set makes files less than ~3.4K store directly in inode block.
a) space saving
   Test with kernel src(without repo data), it can save about 10% space
   with this patch set;
b) performance
   Test this patch set with iozone, there is no obvious performance difference
   with the results of disabling this feature.

Huajun Li (5):
  f2fs: Add flags and helpers to support inline data
  f2fs: Add a new mount option: inline_data
  f2fs: Add a new function: f2fs_reserve_block()
  f2fs: Key functions to handle inline data
  f2fs: Handle inline data read and write

 fs/f2fs/Makefile        |    2 +-
 fs/f2fs/data.c          |   77 ++++++++++++++++++++-----
 fs/f2fs/f2fs.h          |   22 ++++++++
 fs/f2fs/file.c          |   42 +++++++++++++-
 fs/f2fs/inline.c        |  144 +++++++++++++++++++++++++++++++++++++++++++++++
 fs/f2fs/super.c         |    8 ++-
 include/linux/f2fs_fs.h |    8 +++
 7 files changed, 283 insertions(+), 20 deletions(-)
 create mode 100644 fs/f2fs/inline.c

-- 
1.7.9.5

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