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| author | Namjae Jeon <linkinjeon@kernel.org> | 2022-08-14 22:40:25 +0900 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2022-08-15 21:07:01 -0500 |
| commit | 17661ecf6a64eb11ae7f1108fe88686388b2acd5 (patch) | |
| tree | a3d48943640fb1339021b9f609d63208ad5f62f3 /fs | |
| parent | c90b31eaf9e77269d3803ed9223a2e0168b519ac (diff) | |
| download | lwn-17661ecf6a64eb11ae7f1108fe88686388b2acd5.tar.gz lwn-17661ecf6a64eb11ae7f1108fe88686388b2acd5.zip | |
ksmbd: don't remove dos attribute xattr on O_TRUNC open
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>
Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ksmbd/smb2pdu.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index a136d5e4943b..19412ac701a6 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -2330,15 +2330,15 @@ 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) && - strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, STREAM_PREFIX_LEN)) - continue; - - err = ksmbd_vfs_remove_xattr(user_ns, path->dentry, name); - if (err) - ksmbd_debug(SMB, "remove xattr failed : %s\n", name); + if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) && + !strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, + STREAM_PREFIX_LEN)) { + err = ksmbd_vfs_remove_xattr(user_ns, path->dentry, + name); + if (err) + ksmbd_debug(SMB, "remove xattr failed : %s\n", + name); + } } out: kvfree(xattr_list); |