f2fs: enable inline dir handling
Add inline dir functions into normal dir ops' function to handle inline ops.
Besides, we enable inline dir mode when a new dir inode is created if
inline_data option is on.
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 99e944e..cc6474a 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -201,6 +201,9 @@
unsigned int max_depth;
unsigned int level;
+ if (f2fs_has_inline_dentry(dir))
+ return find_in_inline_dir(dir, child, res_page);
+
if (npages == 0)
return NULL;
@@ -227,6 +230,9 @@
struct f2fs_dir_entry *de;
struct f2fs_dentry_block *dentry_blk;
+ if (f2fs_has_inline_dentry(dir))
+ return f2fs_parent_inline_dir(dir, p);
+
page = get_lock_data_page(dir, 0);
if (IS_ERR(page))
return NULL;
@@ -247,7 +253,8 @@
de = f2fs_find_entry(dir, qstr, &page);
if (de) {
res = le32_to_cpu(de->ino);
- kunmap(page);
+ if (!f2fs_has_inline_dentry(dir))
+ kunmap(page);
f2fs_put_page(page, 0);
}
@@ -261,7 +268,8 @@
f2fs_wait_on_page_writeback(page, DATA);
de->ino = cpu_to_le32(inode->i_ino);
set_de_type(de, inode);
- kunmap(page);
+ if (!f2fs_has_inline_dentry(dir))
+ kunmap(page);
set_page_dirty(page);
dir->i_mtime = dir->i_ctime = CURRENT_TIME;
mark_inode_dirty(dir);
@@ -303,6 +311,9 @@
struct f2fs_dentry_block *dentry_blk;
struct f2fs_dir_entry *de;
+ if (f2fs_has_inline_dentry(inode))
+ return make_empty_inline_dir(inode, parent, page);
+
dentry_page = get_new_data_page(inode, page, 0, true);
if (IS_ERR(dentry_page))
return PTR_ERR(dentry_page);
@@ -462,6 +473,14 @@
int err = 0;
int i;
+ if (f2fs_has_inline_dentry(dir)) {
+ err = f2fs_add_inline_entry(dir, name, inode);
+ if (!err || err != -EAGAIN)
+ return err;
+ else
+ err = 0;
+ }
+
dentry_hash = f2fs_dentry_hash(name);
level = 0;
current_depth = F2FS_I(dir)->i_current_depth;
@@ -600,6 +619,9 @@
int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len));
int i;
+ if (f2fs_has_inline_dentry(dir))
+ return f2fs_delete_inline_entry(dentry, page, dir, inode);
+
lock_page(page);
f2fs_wait_on_page_writeback(page, DATA);
@@ -637,6 +659,9 @@
struct f2fs_dentry_block *dentry_blk;
unsigned long nblock = dir_blocks(dir);
+ if (f2fs_has_inline_dentry(dir))
+ return f2fs_empty_inline_dir(dir);
+
for (bidx = 0; bidx < nblock; bidx++) {
dentry_page = get_lock_data_page(dir, bidx);
if (IS_ERR(dentry_page)) {
@@ -676,6 +701,9 @@
unsigned int n = ((unsigned long)ctx->pos / NR_DENTRY_IN_BLOCK);
unsigned char d_type = DT_UNKNOWN;
+ if (f2fs_has_inline_dentry(inode))
+ return f2fs_read_inline_dir(file, ctx);
+
bit_pos = ((unsigned long)ctx->pos % NR_DENTRY_IN_BLOCK);
/* readahead for multi pages of dir */