linux.git/fs/f2fs/debug.c, branch v4.0

f2fs: avoid variable length array

2015-02-12T01:04:50+00:00

Instead of using variable length array, this patch let preallocate memory for
them.

Signed-off-by: Jaegeuk Kim

f2fs: show the number of writeback pages in stat

2015-02-12T01:04:43+00:00

This patch adds the # of writeback pages in stat info.

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

f2fs: update memory footprint information

2015-02-12T01:04:31+00:00

This patch adds missing memory usages, and splits them in detail.

Signed-off-by: Jaegeuk Kim

f2fs: fix wrong memory footprint statistics in debugfs

2015-02-12T01:04:31+00:00

Our value of memory footprint statistics showed in debugfs is not calculated
correctly. Fix it in this patch.

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

f2fs: add nat/sit entries into status

2015-01-10T01:02:28+00:00

This patch adds NAT/SIT entry informations.

Signed-off-by: Jaegeuk Kim

f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively

2015-01-10T01:02:26+00:00

There are two slab cache inode_entry_slab and winode_slab using the same
structure as below:

struct dir_inode_entry {
	struct list_head list;	/* list head */
	struct inode *inode;	/* vfs inode pointer */
};

struct inode_entry {
	struct list_head list;
	struct inode *inode;
};

It's a little waste that the two cache can not share their memory space for each
other.
So in this patch we remove one redundant winode_slab slab cache, then use more
universal name struct inode_entry as remaining data structure name of slab,
finally we reuse the inode_entry_slab to store dirty dir item and gc item for
more effective.

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

f2fs: add block count by in-place-update in stat info

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

This patch adds block count by in-place-update in stat.

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

f2fs: use atomic for counting inode with inline_{dir,inode} flag

2014-12-08T18:54:59+00:00

As inline_{dir,inode} stat is increased/decreased concurrently by multi threads,
so the value is not so accurate, let's use atomic type for counting accurately.

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

f2fs: count the number of inmemory pages

2014-12-08T18:35:15+00:00

This patch adds counting # of inmemory pages in the page cache.

Signed-off-by: Jaegeuk Kim

f2fs: introduce struct inode_management to wrap inner fields

2014-11-20T06:49:32+00:00

Now in f2fs, we have three inode cache: ORPHAN_INO, APPEND_INO, UPDATE_INO,
and we manage fields related to inode cache separately in struct f2fs_sb_info
for each inode cache type.
This makes codes a bit messy, so that this patch intorduce a new struct
inode_management to wrap inner fields as following which make codes more neat.

/* for inner inode cache management */
struct inode_management {
	struct radix_tree_root ino_root;	/* ino entry array */
	spinlock_t ino_lock;			/* for ino entry lock */
	struct list_head ino_list;		/* inode list head */
	unsigned long ino_num;			/* number of entries */
};

struct f2fs_sb_info {
	...
	struct inode_management im[MAX_INO_ENTRY];      /* manage inode cache */
	...
}

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