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cifs: return -ENODATA when deleting an xattr that does not exist
BUGZILLA: https://bugzilla.kernel.org/show_bug.cgi?id=202007 When deleting an xattr/EA: SMB2/3 servers will return SUCCESS when clients delete non-existing EAs. This means that we need to first QUERY the server and check if the EA exists or not so that we can return -ENODATA correctly when this happens. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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@ -940,6 +940,16 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
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resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
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memset(rsp_iov, 0, sizeof(rsp_iov));
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if (ses->server->ops->query_all_EAs) {
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if (!ea_value) {
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rc = ses->server->ops->query_all_EAs(xid, tcon, path,
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ea_name, NULL, 0,
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cifs_sb);
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if (rc == -ENODATA)
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goto sea_exit;
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}
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}
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/* Open */
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memset(&open_iov, 0, sizeof(open_iov));
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rqst[0].rq_iov = open_iov;
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