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Commit 3b4d732a authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
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f2fs: introduce f2fs_update_dentry to clean up duplicated codes 



This patch introduces f2fs_update_dentry to remove redundant code in
f2fs_add_inline_entry and __f2fs_add_link.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 1753396a

fs/f2fs/dir.c

+23 −10
Original line number Diff line number Diff line
@@ -474,6 +474,24 @@ int room_for_filename(const void *bitmap, int slots, int max_slots) 
	goto next;

}



void f2fs_update_dentry(struct inode *inode, struct f2fs_dentry_ptr *d,

				const struct qstr *name, f2fs_hash_t name_hash,

				unsigned int bit_pos)

{

	struct f2fs_dir_entry *de;

	int slots = GET_DENTRY_SLOTS(name->len);

	int i;



	de = &d->dentry[bit_pos];

	de->hash_code = name_hash;

	de->name_len = cpu_to_le16(name->len);

	memcpy(d->filename[bit_pos], name->name, name->len);

	de->ino = cpu_to_le32(inode->i_ino);

	set_de_type(de, inode);

	for (i = 0; i < slots; i++)

		test_and_set_bit_le(bit_pos + i, (void *)d->bitmap);

}



/*

 * Caller should grab and release a rwsem by calling f2fs_lock_op() and

 * f2fs_unlock_op().
@@ -486,15 +504,14 @@ int __f2fs_add_link(struct inode *dir, const struct qstr *name, 
	unsigned int current_depth;

	unsigned long bidx, block;

	f2fs_hash_t dentry_hash;

	struct f2fs_dir_entry *de;

	unsigned int nbucket, nblock;

	size_t namelen = name->len;

	struct page *dentry_page = NULL;

	struct f2fs_dentry_block *dentry_blk = NULL;

	struct f2fs_dentry_ptr d;

	int slots = GET_DENTRY_SLOTS(namelen);

	struct page *page;

	int err = 0;

	int i;



	if (f2fs_has_inline_dentry(dir)) {

		err = f2fs_add_inline_entry(dir, name, inode);
@@ -553,14 +570,10 @@ int __f2fs_add_link(struct inode *dir, const struct qstr *name, 
		err = PTR_ERR(page);

		goto fail;

	}

	de = &dentry_blk->dentry[bit_pos];

	de->hash_code = dentry_hash;

	de->name_len = cpu_to_le16(namelen);

	memcpy(dentry_blk->filename[bit_pos], name->name, name->len);

	de->ino = cpu_to_le32(inode->i_ino);

	set_de_type(de, inode);

	for (i = 0; i < slots; i++)

		test_and_set_bit_le(bit_pos + i, &dentry_blk->dentry_bitmap);



	make_dentry_ptr(&d, (void *)dentry_blk, 1);

	f2fs_update_dentry(inode, &d, name, dentry_hash, bit_pos);



	set_page_dirty(dentry_page);



	/* we don't need to mark_inode_dirty now */

fs/f2fs/f2fs.h

+2 −0
Original line number Diff line number Diff line
@@ -1376,6 +1376,8 @@ ino_t f2fs_inode_by_name(struct inode *, struct qstr *); 
void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,

				struct page *, struct inode *);

int update_dent_inode(struct inode *, const struct qstr *);

void f2fs_update_dentry(struct inode *, struct f2fs_dentry_ptr *,

			const struct qstr *, f2fs_hash_t , unsigned int);

int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *);

void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *,

							struct inode *);

fs/f2fs/inline.c

+6 −12
Original line number Diff line number Diff line
@@ -386,15 +386,12 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, 
	struct page *ipage;

	unsigned int bit_pos;

	f2fs_hash_t name_hash;

	struct f2fs_dir_entry *de;

	size_t namelen = name->len;

	struct f2fs_inline_dentry *dentry_blk = NULL;

	struct f2fs_dentry_ptr d;

	int slots = GET_DENTRY_SLOTS(namelen);

	struct page *page;

	int err = 0;

	int i;



	name_hash = f2fs_dentry_hash(name);



	ipage = get_node_page(sbi, dir->i_ino);

	if (IS_ERR(ipage))
@@ -418,14 +415,11 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, 
	}



	f2fs_wait_on_page_writeback(ipage, NODE);

	de = &dentry_blk->dentry[bit_pos];

	de->hash_code = name_hash;

	de->name_len = cpu_to_le16(namelen);

	memcpy(dentry_blk->filename[bit_pos], name->name, name->len);

	de->ino = cpu_to_le32(inode->i_ino);

	set_de_type(de, inode);

	for (i = 0; i < slots; i++)

		test_and_set_bit_le(bit_pos + i, &dentry_blk->dentry_bitmap);



	name_hash = f2fs_dentry_hash(name);

	make_dentry_ptr(&d, (void *)dentry_blk, 2);

	f2fs_update_dentry(inode, &d, name, name_hash, bit_pos);



	set_page_dirty(ipage);



	/* we don't need to mark_inode_dirty now */