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f2fs: introduce struct inode_management to wrap inner fields

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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 <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2014-11-18 11:18:36 +08:00
committed by Jaegeuk Kim
parent aba291b3d8
commit 67298804f3
4 changed files with 66 additions and 49 deletions
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2
fs/f2fs/debug.c
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@@ -171,7 +171,7 @@ get_cache:
si->cache_mem += npages << PAGE_CACHE_SHIFT;
si->cache_mem += sbi->n_dirty_dirs * sizeof(struct dir_inode_entry);
for (i = 0; i <= UPDATE_INO; i++)
si->cache_mem += sbi->ino_num[i] * sizeof(struct ino_entry);
si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
}
static int stat_show(struct seq_file *s, void *v)