Messages in this thread | | | From | Huajun Li <> | Subject | [f2fs-dev][PATCH V2 0/6] f2fs: Enable f2fs support inline data | Date | Sun, 10 Nov 2013 23:13:15 +0800 |
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From: Huajun Li <huajun.li@intel.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.
V2: - Update f2fs_reserve_block() according to comments on V1 - Add function f2fs_may_inline() to check whether the file meet inline requirements - Try to write inline data to normal data block before clearing it from inode block - Change lock scope while converting inline data - Add inline_data description to f2fs documentation
Huajun Li (6): 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 operations f2fs: update f2fs Documentation
Documentation/filesystems/f2fs.txt | 2 + fs/f2fs/Makefile | 2 +- fs/f2fs/data.c | 97 +++++++++++++------- fs/f2fs/f2fs.h | 23 +++++ fs/f2fs/file.c | 81 +++++++++-------- fs/f2fs/inline.c | 172 ++++++++++++++++++++++++++++++++++++ fs/f2fs/super.c | 8 +- include/linux/f2fs_fs.h | 8 ++ 8 files changed, 325 insertions(+), 68 deletions(-) create mode 100644 fs/f2fs/inline.c
-- 1.7.9.5
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