linux.git/fs/f2fs/extent_cache.c, branch v4.8

f2fs: disable extent_cache for fcollapse/finsert inodes

2016-07-15T22:21:20+00:00

This reduces the elapsed time to do xfstests/generic/017.

Before: 458 s
After:  390 s

Signed-off-by: Jaegeuk Kim

f2fs: avoid mark_inode_dirty

2016-07-08T17:34:09+00:00

Let's check inode's dirtiness before calling mark_inode_dirty.

Signed-off-by: Jaegeuk Kim

f2fs: remove syncing inode page in all the cases

2016-06-03T01:05:12+00:00

This patch reduces to call them across the whole tree.
- sync_inode_page()
- update_inode_page()
- update_inode()
- f2fs_write_inode()

Instead, checkpoint will flush all the dirty inode metadata before syncing
node pages.
Note that, this is doable, since we call mark_inode_dirty_sync() for all
inode's field change which needs to update on-disk inode as well.

Signed-off-by: Jaegeuk Kim

f2fs: call mark_inode_dirty_sync for i_field changes

2016-06-03T01:05:11+00:00

This patch calls mark_inode_dirty_sync() for the following on-disk inode
changes.

 -> largest
 -> ctime/mtime/atime
 -> i_current_depth
 -> i_xattr_nid
 -> i_pino
 -> i_advise
 -> i_flags
 -> i_mode

Signed-off-by: Jaegeuk Kim

f2fs: use inode pointer for {set, clear}_inode_flag

2016-06-03T01:05:07+00:00

This patch refactors to use inode pointer for set_inode_flag and
clear_inode_flag.

Signed-off-by: Jaegeuk Kim

f2fs: reuse get_extent_info

2016-05-07T17:32:29+00:00

Reuse get_extent_info for readability.

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

f2fs: introduce f2fs_update_data_blkaddr for cleanup

2016-02-26T19:52:01+00:00

Add a new help f2fs_update_data_blkaddr to clean up redundant codes.

Signed-off-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: give scheduling point in shrinking path

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

It needs to give a chance to be rescheduled while shrinking slab entries.

Signed-off-by: Jaegeuk Kim

f2fs: improve shrink performance of extent nodes

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

On the worst case, we need to scan the whole radix tree and every rb-tree to
free the victimed extent_nodes when shrinking.

Pengyang initially introduced a victim_list to record the victimed extent_nodes,
and free these extent_nodes by just scanning a list.

Later, Chao Yu enhances the original patch to improve memory footprint by
removing victim list.

The policy of lru list shrinking becomes:
1) lock lru list's lock
2) trylock extent tree's lock
3) remove extent node from lru list
4) unlock lru list's lock
5) do shrink
6) repeat 1) to 5)

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