Add function nilfs2_tmpfile to support O_TMPFILE file creation.
tmpfile testcases(generic/(004,389,509,530,531) except
generic/389,530 (need acl and shutdown supported) now run/pass.
Signed-off-by: Hongbo Li <lihongbo22@xxxxxxxxxx>
---
fs/nilfs2/namei.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index c950139db6ef..a36667d7a5e8 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -125,6 +125,36 @@ nilfs_mknod(struct mnt_idmap *idmap, struct inode *dir,
return err;
}
+static int nilfs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
+ struct file *file, umode_t mode)
+{
+ struct inode *inode;
+ struct nilfs_transaction_info ti;
+ int err;
+
+ err = nilfs_transaction_begin(dir->i_sb, &ti, 1);
+ if (err)
+ return err;
+
+ inode = nilfs_new_inode(dir, mode);
+ err = PTR_ERR(inode);
+ if (!IS_ERR(inode)) {
+ inode->i_op = &nilfs_file_inode_operations;
+ inode->i_fop = &nilfs_file_operations;
+ inode->i_mapping->a_ops = &nilfs_aops;
+ nilfs_mark_inode_dirty(inode);
+ d_tmpfile(file, inode);
+ unlock_new_inode(inode);
+ err = 0;
+ }
+ if (!err)
+ err = nilfs_transaction_commit(dir->i_sb);
+ else
+ nilfs_transaction_abort(dir->i_sb);
+
+ return finish_open_simple(file, err);
+}
+
static int nilfs_symlink(struct mnt_idmap *idmap, struct inode *dir,
struct dentry *dentry, const char *symname)
{
@@ -544,6 +574,7 @@ const struct inode_operations nilfs_dir_inode_operations = {
.mkdir = nilfs_mkdir,
.rmdir = nilfs_rmdir,
.mknod = nilfs_mknod,
+ .tmpfile = nilfs_tmpfile,
.rename = nilfs_rename,
.setattr = nilfs_setattr,
.permission = nilfs_permission,
--
2.34.1
