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Zdrojový kód Úkoly Pull requesty Akce Balíčky Projekty Vydání Wiki Aktivita

f2fs: introduce help function F2FS_NODE()

Procházet zdrojové kódy 
Introduce help function F2FS_NODE() to simplify the conversion of node_page to
f2fs_node.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Tento commit je obsažen v:
Gu Zheng
2013-07-15 17:57:38 +08:00
odevzdal Jaegeuk Kim
rodič 963d4f7d7b
revize 4559071063
8 změnil soubory, kde provedl 35 přidání a 40 odebrání
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40
fs/f2fs/node.h
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@@ -155,8 +155,7 @@ static inline void set_to_next_nat(struct f2fs_nm_info *nm_i, nid_t start_nid)
static inline void fill_node_footer(struct page *page, nid_t nid,
nid_t ino, unsigned int ofs, bool reset)
{
void *kaddr = page_address(page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(page);
if (reset)
memset(rn, 0, sizeof(*rn));
rn->footer.nid = cpu_to_le32(nid);
@@ -166,10 +165,8 @@ static inline void fill_node_footer(struct page *page, nid_t nid,
static inline void copy_node_footer(struct page *dst, struct page *src)
{
void *src_addr = page_address(src);
void *dst_addr = page_address(dst);
struct f2fs_node *src_rn = (struct f2fs_node *)src_addr;
struct f2fs_node *dst_rn = (struct f2fs_node *)dst_addr;
struct f2fs_node *src_rn = F2FS_NODE(src);
struct f2fs_node *dst_rn = F2FS_NODE(dst);
memcpy(&dst_rn->footer, &src_rn->footer, sizeof(struct node_footer));
}
@@ -177,45 +174,40 @@ static inline void fill_node_footer_blkaddr(struct page *page, block_t blkaddr)
{
struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
void *kaddr = page_address(page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(page);
rn->footer.cp_ver = ckpt->checkpoint_ver;
rn->footer.next_blkaddr = cpu_to_le32(blkaddr);
}
static inline nid_t ino_of_node(struct page *node_page)
{
void *kaddr = page_address(node_page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(node_page);
return le32_to_cpu(rn->footer.ino);
}
static inline nid_t nid_of_node(struct page *node_page)
{
void *kaddr = page_address(node_page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(node_page);
return le32_to_cpu(rn->footer.nid);
}
static inline unsigned int ofs_of_node(struct page *node_page)
{
void *kaddr = page_address(node_page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(node_page);
unsigned flag = le32_to_cpu(rn->footer.flag);
return flag >> OFFSET_BIT_SHIFT;
}
static inline unsigned long long cpver_of_node(struct page *node_page)
{
void *kaddr = page_address(node_page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(node_page);
return le64_to_cpu(rn->footer.cp_ver);
}
static inline block_t next_blkaddr_of_node(struct page *node_page)
{
void *kaddr = page_address(node_page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(node_page);
return le32_to_cpu(rn->footer.next_blkaddr);
}
@@ -250,7 +242,7 @@ static inline bool IS_DNODE(struct page *node_page)
static inline void set_nid(struct page *p, int off, nid_t nid, bool i)
{
struct f2fs_node *rn = (struct f2fs_node *)page_address(p);
struct f2fs_node *rn = F2FS_NODE(p);
wait_on_page_writeback(p);
@@ -263,7 +255,8 @@ static inline void set_nid(struct page *p, int off, nid_t nid, bool i)
static inline nid_t get_nid(struct page *p, int off, bool i)
{
struct f2fs_node *rn = (struct f2fs_node *)page_address(p);
struct f2fs_node *rn = F2FS_NODE(p);
if (i)
return le32_to_cpu(rn->i.i_nid[off - NODE_DIR1_BLOCK]);
return le32_to_cpu(rn->in.nid[off]);
@@ -314,8 +307,7 @@ static inline void clear_cold_data(struct page *page)
static inline int is_node(struct page *page, int type)
{
void *kaddr = page_address(page);
struct f2fs_node *rn = (struct f2fs_node *)kaddr;
struct f2fs_node *rn = F2FS_NODE(page);
return le32_to_cpu(rn->footer.flag) & (1 << type);
}
@@ -325,7 +317,7 @@ static inline int is_node(struct page *page, int type)
static inline void set_cold_node(struct inode *inode, struct page *page)
{
struct f2fs_node *rn = (struct f2fs_node *)page_address(page);
struct f2fs_node *rn = F2FS_NODE(page);
unsigned int flag = le32_to_cpu(rn->footer.flag);
if (S_ISDIR(inode->i_mode))
@@ -337,7 +329,7 @@ static inline void set_cold_node(struct inode *inode, struct page *page)
static inline void set_mark(struct page *page, int mark, int type)
{
struct f2fs_node *rn = (struct f2fs_node *)page_address(page);
struct f2fs_node *rn = F2FS_NODE(page);
unsigned int flag = le32_to_cpu(rn->footer.flag);
if (mark)
flag |= (0x1 << type);