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smb/client: return EOPNOTSUPP for unsupported O_TMPFILE

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Some SMB servers return STATUS_OBJECT_NAME_NOT_FOUND or
STATUS_DELETE_PENDING when creating an O_TMPFILE.
The SMB client maps them to ENOENT.

The ENOENT error is supposed to be returned when the path
(a target directory in this case) does not exist, while a
lack of support of O_TMPFILE by the target file system should
be indicated by EOPNOTSUPP.

Reported-by: Mikhail Stefantsev <mikhail@mstefan99.com>
Fixes: 3e7d63037a ("smb: client: add support for O_TMPFILE")
Closes: https://lore.kernel.org/linux-cifs/75fb5359-b268-492d-8d4a-504d1af60f2a@app.fastmail.com/
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Paulo Alcantara <pc@manguebit.org>
This commit is contained in:
ChenXiaoSong
2026-08-07 08:58:06 +00:00
committed by Paulo Alcantara
parent db2ddb8714
commit a2f9fb451c
1 changed files with 2 additions and 0 deletions
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2
fs/smb/client/dir.c
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@@ -1138,6 +1138,8 @@ int cifs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
} while (unlikely(rc == -EEXIST) && ++retries < max_retries);
if (rc) {
if (rc == -ENOENT)
rc = -EOPNOTSUPP;
cifs_del_pending_open(&open);
goto out;
}