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f2fs: introduce f2fs_update_dentry to clean up duplicated codes

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

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2015-02-16 16:17:20 +08:00 committed by Jaegeuk Kim
parent 1753396a0a
commit 3b4d732a56
3 changed files with 31 additions and 22 deletions
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33
fs/f2fs/dir.c
View file

@ -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 */

2
fs/f2fs/f2fs.h
View file

@ -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 *);

18
fs/f2fs/inline.c
View file

@ -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 */