diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-06-11 12:52:02 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-06-29 12:57:12 +0400 |
| commit | e6bbef95429374fd3cac81c36b5894f55b2612dc (patch) | |
| tree | 944383bd7048bb72f34aac73fc4e5cca6e87a615 /fs | |
| parent | f4e0c30c191f87851c4a53454abb55ee276f4a7e (diff) | |
ext3 ->tmpfile() support
In this case we do need a bit more than usual, due to orphan
list handling.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext3/namei.c | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c index 692de13e359..7523c61f796 100644 --- a/fs/ext3/namei.c +++ b/fs/ext3/namei.c @@ -1762,6 +1762,45 @@ retry: return err; } +static int ext3_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode) +{ + handle_t *handle; + struct inode *inode; + int err, retries = 0; + + dquot_initialize(dir); + +retry: + handle = ext3_journal_start(dir, EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb) + + 4 + EXT3_XATTR_TRANS_BLOCKS); + + if (IS_ERR(handle)) + return PTR_ERR(handle); + + inode = ext3_new_inode (handle, dir, NULL, mode); + err = PTR_ERR(inode); + if (!IS_ERR(inode)) { + inode->i_op = &ext3_file_inode_operations; + inode->i_fop = &ext3_file_operations; + ext3_set_aops(inode); + err = ext3_orphan_add(handle, inode); + if (err) + goto err_drop_inode; + mark_inode_dirty(inode); + d_tmpfile(dentry, inode); + unlock_new_inode(inode); + } + ext3_journal_stop(handle); + if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries)) + goto retry; + return err; +err_drop_inode: + ext3_journal_stop(handle); + unlock_new_inode(inode); + iput(inode); + return err; +} + static int ext3_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode) { handle_t *handle; @@ -2303,7 +2342,7 @@ static int ext3_link (struct dentry * old_dentry, retry: handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + - EXT3_INDEX_EXTRA_TRANS_BLOCKS); + EXT3_INDEX_EXTRA_TRANS_BLOCKS + 1); if (IS_ERR(handle)) return PTR_ERR(handle); @@ -2317,6 +2356,11 @@ retry: err = ext3_add_entry(handle, dentry, inode); if (!err) { ext3_mark_inode_dirty(handle, inode); + /* this can happen only for tmpfile being + * linked the first time + */ + if (inode->i_nlink == 1) + ext3_orphan_del(handle, inode); d_instantiate(dentry, inode); } else { drop_nlink(inode); @@ -2519,6 +2563,7 @@ const struct inode_operations ext3_dir_inode_operations = { .mkdir = ext3_mkdir, .rmdir = ext3_rmdir, .mknod = ext3_mknod, + .tmpfile = ext3_tmpfile, .rename = ext3_rename, .setattr = ext3_setattr, #ifdef CONFIG_EXT3_FS_XATTR |