Re: [PATCH 4/4] cifs: Update SFU comments about fifos and sockets

From: Steve French
Date: Sun Sep 15 2024 - 17:15:08 EST


merged into cifs-2.6.git for-next

On Sun, Sep 15, 2024 at 2:46 PM Pali Rohár <pali@xxxxxxxxxx> wrote:
>
> In SFU mode, activated by -o sfu mount option is now also support for
> creating new fifos and sockets.
>
> Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
> ---
> fs/smb/client/cifssmb.c | 8 ++++----
> fs/smb/client/smb1ops.c | 2 +-
> fs/smb/client/smb2ops.c | 2 +-
> 3 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c
> index cfae2e918209..0ffc45aa5e2c 100644
> --- a/fs/smb/client/cifssmb.c
> +++ b/fs/smb/client/cifssmb.c
> @@ -1076,8 +1076,8 @@ SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
> pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO);
> pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags));
> pSMB->Mode |= cpu_to_le16(0x40); /* deny none */
> - /* set file as system file if special file such
> - as fifo and server expecting SFU style and
> + /* set file as system file if special file such as fifo,
> + * socket, char or block and server expecting SFU style and
> no Unix extensions */
>
> if (create_options & CREATE_OPTION_SPECIAL)
> @@ -1193,8 +1193,8 @@ CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms, int *oplock,
> req->AllocationSize = 0;
>
> /*
> - * Set file as system file if special file such as fifo and server
> - * expecting SFU style and no Unix extensions.
> + * Set file as system file if special file such as fifo, socket, char
> + * or block and server expecting SFU style and no Unix extensions.
> */
> if (create_options & CREATE_OPTION_SPECIAL)
> req->FileAttributes = cpu_to_le32(ATTR_SYSTEM);
> diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c
> index e1f2feb56f45..e03c91a49650 100644
> --- a/fs/smb/client/smb1ops.c
> +++ b/fs/smb/client/smb1ops.c
> @@ -1078,7 +1078,7 @@ cifs_make_node(unsigned int xid, struct inode *inode,
> /*
> * Check if mounted with mount parm 'sfu' mount parm.
> * SFU emulation should work with all servers, but only
> - * supports block and char device (no socket & fifo),
> + * supports block and char device, socket & fifo,
> * and was used by default in earlier versions of Windows
> */
> if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
> diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
> index 406f2399f0c5..d30f7cab197e 100644
> --- a/fs/smb/client/smb2ops.c
> +++ b/fs/smb/client/smb2ops.c
> @@ -5190,7 +5190,7 @@ static int smb2_make_node(unsigned int xid, struct inode *inode,
> /*
> * Check if mounted with mount parm 'sfu' mount parm.
> * SFU emulation should work with all servers, but only
> - * supports block and char device (no socket & fifo),
> + * supports block and char device, socket & fifo,
> * and was used by default in earlier versions of Windows
> */
> if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
> --
> 2.20.1
>
>


--
Thanks,

Steve