f2fs: export dir operations for inline dir
This patch exports some dir operations for inline dir, additionally introduces
f2fs_drop_nlink from f2fs_delete_entry for reusing by inline dir function.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index b54f871..99e944e 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -37,7 +37,7 @@
return 4;
}
-static unsigned char f2fs_filetype_table[F2FS_FT_MAX] = {
+unsigned char f2fs_filetype_table[F2FS_FT_MAX] = {
[F2FS_FT_UNKNOWN] = DT_UNKNOWN,
[F2FS_FT_REG_FILE] = DT_REG,
[F2FS_FT_DIR] = DT_DIR,
@@ -59,7 +59,7 @@
[S_IFLNK >> S_SHIFT] = F2FS_FT_SYMLINK,
};
-static void set_de_type(struct f2fs_dir_entry *de, struct inode *inode)
+void set_de_type(struct f2fs_dir_entry *de, struct inode *inode)
{
umode_t mode = inode->i_mode;
de->file_type = f2fs_type_by_mode[(mode & S_IFMT) >> S_SHIFT];
@@ -77,7 +77,7 @@
return bidx;
}
-static bool early_match_name(size_t namelen, f2fs_hash_t namehash,
+bool early_match_name(size_t namelen, f2fs_hash_t namehash,
struct f2fs_dir_entry *de)
{
if (le16_to_cpu(de->name_len) != namelen)
@@ -307,7 +307,6 @@
if (IS_ERR(dentry_page))
return PTR_ERR(dentry_page);
-
dentry_blk = kmap_atomic(dentry_page);
de = &dentry_blk->dentry[0];
@@ -333,7 +332,7 @@
return 0;
}
-static struct page *init_inode_metadata(struct inode *inode,
+struct page *init_inode_metadata(struct inode *inode,
struct inode *dir, const struct qstr *name)
{
struct page *page;
@@ -395,7 +394,7 @@
return ERR_PTR(err);
}
-static void update_parent_metadata(struct inode *dir, struct inode *inode,
+void update_parent_metadata(struct inode *dir, struct inode *inode,
unsigned int current_depth)
{
if (is_inode_flag_set(F2FS_I(inode), FI_NEW_INODE)) {
@@ -560,16 +559,44 @@
return err;
}
+void f2fs_drop_nlink(struct inode *dir, struct inode *inode, struct page *page)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
+
+ down_write(&F2FS_I(inode)->i_sem);
+
+ if (S_ISDIR(inode->i_mode)) {
+ drop_nlink(dir);
+ if (page)
+ update_inode(dir, page);
+ else
+ update_inode_page(dir);
+ }
+ inode->i_ctime = CURRENT_TIME;
+
+ drop_nlink(inode);
+ if (S_ISDIR(inode->i_mode)) {
+ drop_nlink(inode);
+ i_size_write(inode, 0);
+ }
+ up_write(&F2FS_I(inode)->i_sem);
+ update_inode_page(inode);
+
+ if (inode->i_nlink == 0)
+ add_orphan_inode(sbi, inode->i_ino);
+ else
+ release_orphan_inode(sbi);
+}
+
/*
* It only removes the dentry from the dentry page, corresponding name
* entry in name page does not need to be touched during deletion.
*/
void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
- struct inode *inode)
+ struct inode *dir, struct inode *inode)
{
struct f2fs_dentry_block *dentry_blk;
unsigned int bit_pos;
- struct inode *dir = page->mapping->host;
int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len));
int i;
@@ -590,29 +617,8 @@
dir->i_ctime = dir->i_mtime = CURRENT_TIME;
- if (inode) {
- struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
-
- down_write(&F2FS_I(inode)->i_sem);
-
- if (S_ISDIR(inode->i_mode)) {
- drop_nlink(dir);
- update_inode_page(dir);
- }
- inode->i_ctime = CURRENT_TIME;
- drop_nlink(inode);
- if (S_ISDIR(inode->i_mode)) {
- drop_nlink(inode);
- i_size_write(inode, 0);
- }
- up_write(&F2FS_I(inode)->i_sem);
- update_inode_page(inode);
-
- if (inode->i_nlink == 0)
- add_orphan_inode(sbi, inode->i_ino);
- else
- release_orphan_inode(sbi);
- }
+ if (inode)
+ f2fs_drop_nlink(dir, inode, NULL);
if (bit_pos == NR_DENTRY_IN_BLOCK) {
truncate_hole(dir, page->index, page->index + 1);
@@ -628,7 +634,7 @@
unsigned long bidx;
struct page *dentry_page;
unsigned int bit_pos;
- struct f2fs_dentry_block *dentry_blk;
+ struct f2fs_dentry_block *dentry_blk;
unsigned long nblock = dir_blocks(dir);
for (bidx = 0; bidx < nblock; bidx++) {
@@ -640,7 +646,6 @@
return false;
}
-
dentry_blk = kmap_atomic(dentry_page);
if (bidx == 0)
bit_pos = 2;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 4fa0df5..97d90ed 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1242,6 +1242,13 @@
/*
* dir.c
*/
+extern unsigned char f2fs_filetype_table[F2FS_FT_MAX];
+bool early_match_name(size_t, f2fs_hash_t, struct f2fs_dir_entry *);
+void set_de_type(struct f2fs_dir_entry *, struct inode *);
+struct page *init_inode_metadata(struct inode *, struct inode *,
+ const struct qstr *);
+void update_parent_metadata(struct inode *, struct inode *, unsigned int);
+void f2fs_drop_nlink(struct inode *, struct inode *, struct page *);
struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *,
struct page **);
struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **);
@@ -1250,7 +1257,8 @@
struct page *, struct inode *);
int update_dent_inode(struct inode *, const struct qstr *);
int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *);
-void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *);
+void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *,
+ struct inode *);
int f2fs_do_tmpfile(struct inode *, struct inode *);
int f2fs_make_empty(struct inode *, struct inode *);
bool f2fs_empty_dir(struct inode *);
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 0d2526e..6e67f2b 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -223,7 +223,7 @@
f2fs_put_page(page, 0);
goto fail;
}
- f2fs_delete_entry(de, page, inode);
+ f2fs_delete_entry(de, page, dir, inode);
f2fs_unlock_op(sbi);
/* In order to evict this inode, we set it dirty */
@@ -435,7 +435,7 @@
old_inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(old_inode);
- f2fs_delete_entry(old_entry, old_page, NULL);
+ f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
if (old_dir_entry) {
if (old_dir != new_dir) {
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index ebd0132..843da53 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -111,7 +111,7 @@
iput(einode);
goto out_unmap_put;
}
- f2fs_delete_entry(de, page, einode);
+ f2fs_delete_entry(de, page, dir, einode);
iput(einode);
goto retry;
}