From d03ba4cc3fa639916a86b61c5a3d817cb6aa91a0 Mon Sep 17 00:00:00 2001 From: Kinglong Mee Date: Fri, 10 Mar 2017 16:28:46 +0800 Subject: f2fs: cleanup the disk level filename updating As discuss with Jaegeuk and Chao, "Once checkpoint is done, f2fs doesn't need to update there-in filename at all." The disk-level filename is used only one case, 1. create a file A under a dir 2. sync A 3. godown 4. umount 5. mount (roll_forward) Only the rename/cross_rename changes the filename, if it happens, a. between step 1 and 2, the sync A will caused checkpoint, so that, the roll_forward at step 5 never happens. b. after step 2, the roll_forward happens, file A will roll forward to the result as after step 1. So that, any updating the disk filename is useless, just cleanup it. Signed-off-by: Kinglong Mee Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/dir.c | 25 ++++--------------------- fs/f2fs/f2fs.h | 2 -- fs/f2fs/file.c | 8 -------- fs/f2fs/inline.c | 2 -- fs/f2fs/namei.c | 29 ----------------------------- 5 files changed, 4 insertions(+), 62 deletions(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 8d5c62b07b28..058c4f3afcef 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -337,24 +337,6 @@ static void init_dent_inode(const struct qstr *name, struct page *ipage) set_page_dirty(ipage); } -int update_dent_inode(struct inode *inode, struct inode *to, - const struct qstr *name) -{ - struct page *page; - - if (file_enc_name(to)) - return 0; - - page = get_node_page(F2FS_I_SB(inode), inode->i_ino); - if (IS_ERR(page)) - return PTR_ERR(page); - - init_dent_inode(name, page); - f2fs_put_page(page, 1); - - return 0; -} - void do_make_empty_dir(struct inode *inode, struct inode *parent, struct f2fs_dentry_ptr *d) { @@ -438,8 +420,11 @@ struct page *init_inode_metadata(struct inode *inode, struct inode *dir, set_cold_node(inode, page); } - if (new_name) + if (new_name) { init_dent_inode(new_name, page); + if (f2fs_encrypted_inode(dir)) + file_set_enc_name(inode); + } /* * This file should be checkpointed during fsync. @@ -599,8 +584,6 @@ add_dentry: err = PTR_ERR(page); goto fail; } - if (f2fs_encrypted_inode(dir)) - file_set_enc_name(inode); } make_dentry_ptr(NULL, &d, (void *)dentry_blk, 1); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 6c00a787c342..a481c8e39b7c 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -2087,8 +2087,6 @@ ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, struct page **page); void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, struct page *page, struct inode *inode); -int update_dent_inode(struct inode *inode, struct inode *to, - const struct qstr *name); void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, const struct qstr *name, f2fs_hash_t name_hash, unsigned int bit_pos); diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 77ebd6b9323c..78ece6e4779c 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -110,20 +110,12 @@ static int get_parent_ino(struct inode *inode, nid_t *pino) { struct dentry *dentry; - if (file_enc_name(inode)) - return 0; - inode = igrab(inode); dentry = d_find_any_alias(inode); iput(inode); if (!dentry) return 0; - if (update_dent_inode(inode, inode, &dentry->d_name)) { - dput(dentry); - return 0; - } - *pino = parent_ino(dentry); dput(dentry); return 1; diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 93c15337bcd9..701bbd8d10ba 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -528,8 +528,6 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, err = PTR_ERR(page); goto fail; } - if (f2fs_encrypted_inode(dir)) - file_set_enc_name(inode); } f2fs_wait_on_page_writeback(ipage, NODE, true); diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index 25c073f6c7d4..8906c9f6cce4 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -720,13 +720,6 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, if (err) goto put_out_dir; - err = update_dent_inode(old_inode, new_inode, - &new_dentry->d_name); - if (err) { - release_orphan_inode(sbi); - goto put_out_dir; - } - f2fs_set_link(new_dir, new_entry, new_page, old_inode); new_inode->i_ctime = current_time(new_inode); @@ -779,8 +772,6 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, down_write(&F2FS_I(old_inode)->i_sem); file_lost_pino(old_inode); - if (new_inode && file_enc_name(new_inode)) - file_set_enc_name(old_inode); up_write(&F2FS_I(old_inode)->i_sem); old_inode->i_ctime = current_time(old_inode); @@ -917,18 +908,6 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, f2fs_lock_op(sbi); - err = update_dent_inode(old_inode, new_inode, &new_dentry->d_name); - if (err) - goto out_unlock; - if (file_enc_name(new_inode)) - file_set_enc_name(old_inode); - - err = update_dent_inode(new_inode, old_inode, &old_dentry->d_name); - if (err) - goto out_undo; - if (file_enc_name(old_inode)) - file_set_enc_name(new_inode); - /* update ".." directory entry info of old dentry */ if (old_dir_entry) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); @@ -972,14 +951,6 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) f2fs_sync_fs(sbi->sb, 1); return 0; -out_undo: - /* - * Still we may fail to recover name info of f2fs_inode here - * Drop it, once its name is set as encrypted - */ - update_dent_inode(old_inode, old_inode, &old_dentry->d_name); -out_unlock: - f2fs_unlock_op(sbi); out_new_dir: if (new_dir_entry) { f2fs_dentry_kunmap(new_inode, new_dir_page); -- cgit v1.2.3