linux.git/include/linux/f2fs_fs.h, branch v4.6-rc2

f2fs: introduce f2fs_journal struct to wrap journal info

2016-02-23T05:39:53+00:00

Introduce a new structure f2fs_journal to wrap journal info in struct
f2fs_summary_block for readability.

struct f2fs_journal {
	union {
		__le16 n_nats;
		__le16 n_sits;
	};
	union {
		struct nat_journal nat_j;
		struct sit_journal sit_j;
		struct f2fs_extra_info info;
	};
} __packed;

struct f2fs_summary_block {
	struct f2fs_summary entries[ENTRIES_IN_SUM];
	struct f2fs_journal journal;
	struct summary_footer footer;
} __packed;

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: preallocate blocks for buffered aio writes

2016-02-23T00:07:23+00:00

This patch preallocates data blocks for buffered aio writes.
With this patch, we can avoid redundant locking and unlocking of node pages
given consecutive aio request.

Signed-off-by: Jaegeuk Kim

f2fs: fix endianness of on-disk summary_footer

2016-02-23T00:07:23+00:00

Signed-off-by: Sheng Yong 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: remove unneeded pointer conversion

2016-02-23T00:07:23+00:00

There are redundant pointer conversion in following call stack:
 - at position a, inode was been converted to f2fs_file_info.
 - at position b, f2fs_file_info was been converted to inode again.

 - truncate_blocks(inode,..)
  - fi = F2FS_I(inode)		---a
  - ADDRS_PER_PAGE(node_page, fi)
   - addrs_per_inode(fi)
    - inode = &fi->vfs_inode	---b
    - f2fs_has_inline_xattr(inode)
     - fi = F2FS_I(inode)
     - is_inode_flag_set(fi,..)

In order to avoid unneeded conversion, alter ADDRS_PER_PAGE and
addrs_per_inode to acept parameter with type of inode pointer.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: introduce lifetime write IO statistics

2016-02-23T00:07:23+00:00

This patch introduces lifetime IO write statistics exposed to the sysfs interface.
The write IO amount is obtained from block layer, accumulated in the file system and
stored in the hot node summary of checkpoint.

Signed-off-by: Shuoran Liu 
Signed-off-by: Pengyang Hou 
[Jaegeuk Kim: add sysfs documentation]
Signed-off-by: Jaegeuk Kim

f2fs: add symbol to avoid any confusion with tools

2015-12-15T02:58:42+00:00

This patch adds MAX_VOLUME_NAME to sync with f2fs-tools.

Signed-off-by: Jaegeuk Kim

f2fs: add annotation for space utilization of regular/inline dentry

2015-08-22T05:45:13+00:00

Add annotation to let us know more clearly about space utilization
information of regular dentry and inline dentry.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs crypto: declare some definitions for f2fs encryption feature

2015-05-28T22:41:45+00:00

This definitions will be used by inode and superblock for encyption.

Signed-off-by: Jaegeuk Kim

f2fs: add feature facility in superblock

2015-05-28T22:41:28+00:00

This patch introduces a feature in superblock, which will indicate any new
features for f2fs.

Signed-off-by: Jaegeuk Kim

f2fs: add missing version info in superblock

2015-05-28T22:41:26+00:00

The mkfs.f2fs remains kernel version in superblock, but f2fs module has not
added that so far.

Signed-off-by: Jaegeuk Kim