From: Namjae Jeon <linkinjeon@kernel.org>
To: linux-cifs@vger.kernel.org
Cc: smfrench@gmail.com, hyc.lee@gmail.com, senozhatsky@chromium.org,
Namjae Jeon <linkinjeon@kernel.org>
Subject: [PATCH] ksmbd: don't remove dos attribute xattr on O_TRUNC open
Date: Fri, 12 Aug 2022 11:56:14 +0900 [thread overview]
Message-ID: <20220812025614.5673-1-linkinjeon@kernel.org> (raw)
When smb client open file in ksmbd share with O_TRUNC, dos attribute
xattr is removed as well as data in file. This cause the FSCTL_SET_SPARSE
request from the client fails because ksmbd can't update the dos attribute
after setting ATTR_SPARSE_FILE. And this patch fix xfstests generic/469
test also.
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
---
fs/ksmbd/smb2pdu.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index b5c36657ecfd..0c2e57397dd2 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -2330,9 +2330,7 @@ static int smb2_remove_smb_xattrs(struct path *path)
name += strlen(name) + 1) {
ksmbd_debug(SMB, "%s, len %zd\n", name, strlen(name));
- if (strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) &&
- strncmp(&name[XATTR_USER_PREFIX_LEN], DOS_ATTRIBUTE_PREFIX,
- DOS_ATTRIBUTE_PREFIX_LEN) &&
+ if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) &&
strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, STREAM_PREFIX_LEN))
continue;
--
2.25.1
next reply other threads:[~2022-08-12 2:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-12 2:56 Namjae Jeon [this message]
2022-08-14 2:19 ` [PATCH] ksmbd: don't remove dos attribute xattr on O_TRUNC open Hyunchul Lee
2022-08-14 2:50 ` Namjae Jeon
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