mutex_unlock_op(sbi, DENTRY_OPS);
}
- void init_dent_inode(struct dentry *dentry, struct page *ipage)
+ void init_dent_inode(const struct qstr *name, struct page *ipage)
{
struct f2fs_node *rn;
wait_on_page_writeback(ipage);
- /* copy dentry info. to this inode page */
+ /* copy name info. to this inode page */
rn = (struct f2fs_node *)page_address(ipage);
- rn->i.i_namelen = cpu_to_le32(dentry->d_name.len);
- memcpy(rn->i.i_name, dentry->d_name.name, dentry->d_name.len);
+ rn->i.i_namelen = cpu_to_le32(name->len);
+ memcpy(rn->i.i_name, name->name, name->len);
set_page_dirty(ipage);
}
- static int init_inode_metadata(struct inode *inode, struct dentry *dentry)
+ static int init_inode_metadata(struct inode *inode,
+ struct inode *dir, const struct qstr *name)
{
- struct inode *dir = dentry->d_parent->d_inode;
-
if (is_inode_flag_set(F2FS_I(inode), FI_NEW_INODE)) {
int err;
- err = new_inode_page(inode, dentry);
+ err = new_inode_page(inode, name);
if (err)
return err;
if (IS_ERR(ipage))
return PTR_ERR(ipage);
set_cold_node(inode, ipage);
- init_dent_inode(dentry, ipage);
+ init_dent_inode(name, ipage);
f2fs_put_page(ipage, 1);
}
if (is_inode_flag_set(F2FS_I(inode), FI_INC_LINK)) {
goto next;
}
- int f2fs_add_link(struct dentry *dentry, struct inode *inode)
+ int __f2fs_add_link(struct inode *dir, const struct qstr *name, struct inode *inode)
{
unsigned int bit_pos;
unsigned int level;
f2fs_hash_t dentry_hash;
struct f2fs_dir_entry *de;
unsigned int nbucket, nblock;
- struct inode *dir = dentry->d_parent->d_inode;
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
- const char *name = dentry->d_name.name;
- size_t namelen = dentry->d_name.len;
+ size_t namelen = name->len;
struct page *dentry_page = NULL;
struct f2fs_dentry_block *dentry_blk = NULL;
int slots = GET_DENTRY_SLOTS(namelen);
int err = 0;
int i;
- dentry_hash = f2fs_dentry_hash(name, dentry->d_name.len);
+ dentry_hash = f2fs_dentry_hash(name->name, name->len);
level = 0;
current_depth = F2FS_I(dir)->i_current_depth;
if (F2FS_I(dir)->chash == dentry_hash) {
++level;
goto start;
add_dentry:
- err = init_inode_metadata(inode, dentry);
+ err = init_inode_metadata(inode, dir, name);
if (err)
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, 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++)
}
if (inode) {
- inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+ inode->i_ctime = CURRENT_TIME;
drop_nlink(inode);
if (S_ISDIR(inode->i_mode)) {
drop_nlink(inode);
}
/*
+ * ioctl commands
+ */
+#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
+#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
+
+#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
+/*
+ * ioctl commands in 32 bit emulation
+ */
+#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
+#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
+#endif
+
+/*
* For INODE and NODE manager
*/
#define XATTR_NODE_OFFSET (-1) /*
/* Use below internally in f2fs*/
unsigned long flags; /* use to pass per-file flags */
- unsigned long long data_version;/* lastes version of data for fsync */
+ unsigned long long data_version;/* latest version of data for fsync */
atomic_t dirty_dents; /* # of dirty dentry pages */
f2fs_hash_t chash; /* hash value of given file name */
unsigned int clevel; /* maximum level of given file name */
static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
struct page *ipage, struct page *npage, nid_t nid)
{
+ memset(dn, 0, sizeof(*dn));
dn->inode = inode;
dn->inode_page = ipage;
dn->node_page = npage;
dn->nid = nid;
- dn->inode_page_locked = 0;
}
/*
return atomic_read(&sbi->nr_pages[count_type]);
}
+static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
+{
+ unsigned int pages_per_sec = sbi->segs_per_sec *
+ (1 << sbi->log_blocks_per_seg);
+ return ((get_pages(sbi, block_type) + pages_per_sec - 1)
+ >> sbi->log_blocks_per_seg) / sbi->segs_per_sec;
+}
+
static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
{
block_t ret;
int f2fs_setattr(struct dentry *, struct iattr *);
int truncate_hole(struct inode *, pgoff_t, pgoff_t);
long f2fs_ioctl(struct file *, unsigned int, unsigned long);
+long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long);
/*
* inode.c
*/
void f2fs_set_inode_flags(struct inode *);
-struct inode *f2fs_iget_nowait(struct super_block *, unsigned long);
struct inode *f2fs_iget(struct super_block *, unsigned long);
void update_inode(struct inode *, struct page *);
int f2fs_write_inode(struct inode *, struct writeback_control *);
ino_t f2fs_inode_by_name(struct inode *, struct qstr *);
void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
struct page *, struct inode *);
- void init_dent_inode(struct dentry *, struct page *);
- int f2fs_add_link(struct dentry *, struct inode *);
+ void init_dent_inode(const struct qstr *, struct page *);
+ int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *);
void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *);
int f2fs_make_empty(struct inode *, struct inode *);
bool f2fs_empty_dir(struct inode *);
+ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
+ {
+ return __f2fs_add_link(dentry->d_parent->d_inode, &dentry->d_name,
+ inode);
+ }
+
/*
* super.c
*/
int f2fs_sync_fs(struct super_block *, int);
+extern __printf(3, 4)
+void f2fs_msg(struct super_block *, const char *, const char *, ...);
/*
* hash.c
int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
int truncate_inode_blocks(struct inode *, pgoff_t);
int remove_inode_page(struct inode *);
- int new_inode_page(struct inode *, struct dentry *);
+ int new_inode_page(struct inode *, const struct qstr *);
struct page *new_node_page(struct dnode_of_data *, unsigned int);
void ra_node_page(struct f2fs_sb_info *, nid_t);
struct page *get_node_page(struct f2fs_sb_info *, pgoff_t);
void flush_nat_entries(struct f2fs_sb_info *);
int build_node_manager(struct f2fs_sb_info *);
void destroy_node_manager(struct f2fs_sb_info *);
-int create_node_manager_caches(void);
+int __init create_node_manager_caches(void);
void destroy_node_manager_caches(void);
/*
struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
struct bio *f2fs_bio_alloc(struct block_device *, int);
void f2fs_submit_bio(struct f2fs_sb_info *, enum page_type, bool sync);
-int write_meta_page(struct f2fs_sb_info *, struct page *,
- struct writeback_control *);
+void write_meta_page(struct f2fs_sb_info *, struct page *);
void write_node_page(struct f2fs_sb_info *, struct page *, unsigned int,
block_t, block_t *);
void write_data_page(struct inode *, struct page *, struct dnode_of_data*,
void set_dirty_dir_page(struct inode *, struct page *);
void remove_dirty_dir_inode(struct inode *);
void sync_dirty_dir_inodes(struct f2fs_sb_info *);
-void block_operations(struct f2fs_sb_info *);
-void write_checkpoint(struct f2fs_sb_info *, bool, bool);
+void write_checkpoint(struct f2fs_sb_info *, bool);
void init_orphan_info(struct f2fs_sb_info *);
-int create_checkpoint_caches(void);
+int __init create_checkpoint_caches(void);
void destroy_checkpoint_caches(void);
/*
int start_gc_thread(struct f2fs_sb_info *);
void stop_gc_thread(struct f2fs_sb_info *);
block_t start_bidx_of_node(unsigned int);
-int f2fs_gc(struct f2fs_sb_info *, int);
+int f2fs_gc(struct f2fs_sb_info *);
void build_gc_manager(struct f2fs_sb_info *);
-int create_gc_caches(void);
+int __init create_gc_caches(void);
void destroy_gc_caches(void);
/*
int f2fs_build_stats(struct f2fs_sb_info *);
void f2fs_destroy_stats(struct f2fs_sb_info *);
-void destroy_root_stats(void);
+void __init f2fs_create_root_stats(void);
+void f2fs_destroy_root_stats(void);
#else
#define stat_inc_call_count(si)
#define stat_inc_seg_count(si, type)
static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
-static inline void destroy_root_stats(void) { }
+static inline void __init f2fs_create_root_stats(void) { }
+static inline void f2fs_destroy_root_stats(void) { }
#endif
extern const struct file_operations f2fs_dir_operations;
f2fs_put_page(page, 1);
continue;
}
- page_cache_release(page);
+ f2fs_put_page(page, 0);
}
}
return 0;
}
- int new_inode_page(struct inode *inode, struct dentry *dentry)
+ int new_inode_page(struct inode *inode, const struct qstr *name)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct page *page;
set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);
mutex_lock_op(sbi, NODE_NEW);
page = new_node_page(&dn, 0);
- init_dent_inode(dentry, page);
+ init_dent_inode(name, page);
mutex_unlock_op(sbi, NODE_NEW);
if (IS_ERR(page))
return PTR_ERR(page);
return;
if (read_node_page(apage, READA))
- goto unlock_out;
+ unlock_page(apage);
- page_cache_release(apage);
- return;
-
-unlock_out:
- unlock_page(apage);
release_out:
- page_cache_release(apage);
+ f2fs_put_page(apage, 0);
+ return;
}
struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid)
return 0;
}
+/*
+ * It is very important to gather dirty pages and write at once, so that we can
+ * submit a big bio without interfering other data writes.
+ * Be default, 512 pages (2MB), a segment size, is quite reasonable.
+ */
+#define COLLECT_DIRTY_NODES 512
static int f2fs_write_node_pages(struct address_space *mapping,
struct writeback_control *wbc)
{
struct block_device *bdev = sbi->sb->s_bdev;
long nr_to_write = wbc->nr_to_write;
- if (wbc->for_kupdate)
- return 0;
-
- if (get_pages(sbi, F2FS_DIRTY_NODES) == 0)
- return 0;
-
+ /* First check balancing cached NAT entries */
if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK)) {
- write_checkpoint(sbi, false, false);
+ write_checkpoint(sbi, false);
return 0;
}
+ /* collect a number of dirty node pages and write together */
+ if (get_pages(sbi, F2FS_DIRTY_NODES) < COLLECT_DIRTY_NODES)
+ return 0;
+
/* if mounting is failed, skip writing node pages */
wbc->nr_to_write = bio_get_nr_vecs(bdev);
sync_node_pages(sbi, 0, wbc);
kfree(nm_i);
}
-int create_node_manager_caches(void)
+int __init create_node_manager_caches(void)
{
nat_entry_slab = f2fs_kmem_cache_create("nat_entry",
sizeof(struct nat_entry), NULL);
{
struct f2fs_node *raw_node = (struct f2fs_node *)kmap(ipage);
struct f2fs_inode *raw_inode = &(raw_node->i);
- struct dentry dent, parent;
+ struct qstr name;
struct f2fs_dir_entry *de;
struct page *page;
struct inode *dir;
goto out;
}
- parent.d_inode = dir;
- dent.d_parent = &parent;
- dent.d_name.len = le32_to_cpu(raw_inode->i_namelen);
- dent.d_name.name = raw_inode->i_name;
+ name.len = le32_to_cpu(raw_inode->i_namelen);
+ name.name = raw_inode->i_name;
- de = f2fs_find_entry(dir, &dent.d_name, &page);
+ de = f2fs_find_entry(dir, &name, &page);
if (de) {
kunmap(page);
f2fs_put_page(page, 0);
} else {
- err = f2fs_add_link(&dent, inode);
- __f2fs_add_link(dir, &name, inode);
++ err = __f2fs_add_link(dir, &name, inode);
}
iput(dir);
out:
goto out;
}
- INIT_LIST_HEAD(&entry->list);
list_add_tail(&entry->list, head);
entry->blkaddr = blkaddr;
}
static void destroy_fsync_dnodes(struct f2fs_sb_info *sbi,
struct list_head *head)
{
- struct list_head *this;
- struct fsync_inode_entry *entry;
- list_for_each(this, head) {
- entry = list_entry(this, struct fsync_inode_entry, list);
+ struct fsync_inode_entry *entry, *tmp;
+
+ list_for_each_entry_safe(entry, tmp, head, list) {
iput(entry->inode);
list_del(&entry->list);
kmem_cache_free(fsync_entry_slab, entry);
f2fs_put_page(node_page, 1);
/* Deallocate previous index in the node page */
- inode = f2fs_iget_nowait(sbi->sb, ino);
+ inode = f2fs_iget(sbi->sb, ino);
if (IS_ERR(inode))
return;
out:
destroy_fsync_dnodes(sbi, &inode_list);
kmem_cache_destroy(fsync_entry_slab);
- write_checkpoint(sbi, false, false);
+ write_checkpoint(sbi, false);
}
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / commitdiff