linux-stable.git/include/linux/f2fs_fs.h, branch v4.1.41

f2fs: sanity check segment count

2017-06-13T13:29:21+00:00

[ Upstream commit b9dd46188edc2f0d1f37328637860bb65a771124 ]

F2FS uses 4 bytes to represent block address. As a result, supported
size of disk is 16 TB and it equals to 16 * 1024 * 1024 / 2 segments.

Signed-off-by: Jin Qian 
Signed-off-by: Jaegeuk Kim 
Signed-off-by: Sasha Levin

f2fs: add F2FS_INLINE_DOTS to recover missing dot dentries

2015-04-10T22:08:57+00:00

If f2fs was corrupted with missing dot dentries, it needs to recover them after
fsck.f2fs detection.

The underlying precedure is:

1. The fsck.f2fs remains F2FS_INLINE_DOTS flag in directory inode, if it detects
missing dot dentries.

2. When f2fs looks up the corrupted directory, it triggers f2fs_add_link with
proper inode numbers and their dot and dotdot names.

3. Once f2fs recovers the directory without errors, it removes F2FS_INLINE_DOTS
finally.

Signed-off-by: Jaegeuk Kim

f2fs: simplfy a field name in struct f2fs_extent,extent_info

2015-03-03T17:58:45+00:00

Rename a filed name from 'blk_addr' to 'blk' in struct {f2fs_extent,extent_info}
as annotation of this field descripts its meaning well to us.

By this way, we can avoid long statement in code of following patches.

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

f2fs: introduce macros to convert bytes and blocks in f2fs

2015-02-12T01:04:48+00:00

This patch adds two macros for transition between byte and block offsets.
Currently, f2fs only supports 4KB blocks, so use the default size for now.

Signed-off-by: Jaegeuk Kim

f2fs: split UMOUNT and FASTBOOT flags

2015-02-12T01:04:41+00:00

This patch adds FASTBOOT flag into checkpoint as follows.

 - CP_UMOUNT_FLAG is set when system is umounted.
 - CP_FASTBOOT_FLAG is set when intermediate checkpoint having node summaries
   was done.

So, if you get CP_UMOUNT_FLAG from checkpoint, the system was umounted cleanly.
Instead, if there was sudden-power-off, you can get CP_FASTBOOT_FLAG or nothing.

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

f2fs: fix missing cold bit during recovery

2015-01-10T01:02:25+00:00

In do_recover_data, we find and update previous node pages after updating
its new block addresses.
After then, we call fill_node_footer without reset field, we erase its
cold bit so that this new cold node block is written to wrong log area.
This patch fixes not to miss its old flag.

Signed-off-by: Jaegeuk Kim

f2fs: remove unnecessary macro

2014-11-05T01:34:15+00:00

Let's remove unused macro.

Signed-off-by: Jaegeuk Kim

f2fs: revisit inline_data to avoid data races and potential bugs

2014-11-05T01:34:11+00:00

This patch simplifies the inline_data usage with the following rule.
1. inline_data is set during the file creation.
2. If new data is requested to be written ranges out of inline_data,
 f2fs converts that inode permanently.
3. There is no cases which converts non-inline_data inode to inline_data.
4. The inline_data flag should be changed under inode page lock.

Signed-off-by: Jaegeuk Kim

f2fs: add infra struct and helper for inline dir

2014-11-04T00:07:31+00:00

This patch defines macro/inline dentry structure, and adds some helpers for
inline dir infrastructure.

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

f2fs: use highmem for directory pages

2014-11-04T00:07:30+00:00

This patch fixes to use highmem for directory pages.

Signed-off-by: Jaegeuk Kim