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Date: Mon, 16 Feb 2015 16:17:20 +0800
From: Chao Yu <chao2.yu@...sung.com>
To: Jaegeuk Kim <jaegeuk@...nel.org>,
Changman Lee <cm224.lee@...sung.com>
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] 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: Chao Yu <chao2.yu@...sung.com>
---
fs/f2fs/dir.c | 33 +++++++++++++++++++++++----------
fs/f2fs/f2fs.h | 2 ++
fs/f2fs/inline.c | 18 ++++++------------
3 files changed, 31 insertions(+), 22 deletions(-)
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index b74097a..583896c 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -474,6 +474,24 @@ next:
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 @@ add_dentry:
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 */
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index a978b65..f8da399 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -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 *);
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 1484c00..82b7441 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -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 */
--
2.2.1
--
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