From: "Pali Rohár" <pali@kernel.org>
To: Steve French <sfrench@samba.org>,
Paulo Alcantara <pc@manguebit.org>,
Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: linux-cifs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH RESEND 07/11] cifs: Check if server supports EAs before trying to set it for WSL
Date: Mon, 6 Jul 2026 20:48:15 +0200 [thread overview]
Message-ID: <20260706184819.22124-8-pali@kernel.org> (raw)
In-Reply-To: <20260706184819.22124-1-pali@kernel.org>
WSL special files store information into EAs. When EAs are not supported
on the server filesystem then fast fail in mknod_wsl() function.
Signed-off-by: Pali Rohár <pali@kernel.org>
---
fs/smb/client/reparse.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c
index 99e93b56374f..e2ea59a17c9c 100644
--- a/fs/smb/client/reparse.c
+++ b/fs/smb/client/reparse.c
@@ -668,6 +668,13 @@ static int mknod_wsl(unsigned int xid, struct inode *inode,
struct kvec reparse_iov, xattr_iov;
int rc;
+ /*
+ * WSL special files store information into EAs. When EAs are not
+ * supported on the server filesystem then fast fail.
+ */
+ if (!(le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_EXTENDED_ATTRIBUTES))
+ return -EOPNOTSUPP;
+
rc = wsl_set_reparse_buf(&buf, mode, symname, cifs_sb, &reparse_iov);
if (rc)
return rc;
--
2.20.1
next prev parent reply other threads:[~2026-07-06 18:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-06 18:48 [PATCH RESEND 00/11] cifs: Various changes Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 01/11] cifs: Fix and improve cifs_is_path_accessible() function Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 02/11] cifs: Remove code for querying FILE_INFO_STANDARD via CIFSSMBQPathInfo() Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 03/11] cifs: Remove CIFSSMBSetPathInfoFB() fallback function Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 04/11] cifs: Remove cifs_backup_query_path_info() and replace it by cifs_query_path_info() Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 05/11] cifs: Fix validation of EAs for WSL reparse points Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 06/11] cifs: Validate presence of EA $LXMOD " Pali Rohár
2026-07-06 18:48 ` Pali Rohár [this message]
2026-07-06 22:33 ` [PATCH RESEND 07/11] cifs: Check if server supports EAs before trying to set it for WSL Steve French
2026-07-06 22:42 ` Pali Rohár
[not found] ` <CAH2r5mvDGM7i8EsdPkW681a_AnXOAsHkg38eJqegO7g2gV8qAw@mail.gmail.com>
2026-07-06 22:58 ` Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 08/11] cifs: Extend ->set_EA() callback to allow operate on reparse point Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 09/11] cifs: Create native Window socket file compatible also with WSL subsystem Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 10/11] cifs: Add support for parsing WSL symlinks in version 1 format Pali Rohár
2026-07-06 20:50 ` Pali Rohár
2026-07-06 21:02 ` Pali Rohár
2026-07-06 18:48 ` [PATCH RESEND 11/11] cifs: Add support for creating " Pali Rohár
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