[linux-cifs-client] CIFS client leaving cifs???? files

[Mark Buechler]

I'm running samba v3.0.23c and the latest cifs kernel module on my cifs
client. I'm mounting my samba share on my client with "-o direct". I'm
seeing something odd with regard to unlinking open files. I run MythTV. When
Myth deletes a recording, rather than doing a straight unlink it does the
following:

1. Open file
2. Gradually truncate the file
3. When the file gets below a certain file size, unlink it
4. Close file

This behavior has a side effect of leaving the truncated files hanging
around but renamed as cifs??? files. Ie:

-rw-rw-rw- 1 mythtv daemon         121 Dec 15 19:00
9014_20061215185315.mpg.png
-rw-r--r-- 1 mythtv daemon   257848016 Dec 15 20:00 9014_20061215190000.mpg
-rw-rw-rw- 1 mythtv daemon         121 Dec 15 20:00
9014_20061215190000.mpg.png
-rw-r--r-- 1 mythtv daemon    13433164 Dec 15 20:07 9016_20061215200405.mpg
-rw-rw-rw- 1 mythtv daemon         121 Dec 15 20:07
9016_20061215200405.mpg.png
-rw-r--r-- 1 mythtv daemon   502833260 Dec 15 22:04 9016_20061215200733.mpg
-rwxr--r-- 1 mythtv daemon     2976861 Dec 17 13:05 cifs11f3
-rwxr--r-- 1 mythtv daemon     6908659 Dec 17 13:06 cifs1279
-rw-r--r-- 1 mythtv daemon           0 Dec 17 10:57 cifs128e
-rwxr--r-- 1 mythtv daemon     4411804 Dec 17 12:06 cifs15e9
-rw-r--r-- 1 mythtv daemon           0 Dec 17 13:08 cifs20e1
-rwxr--r-- 1 mythtv daemon     3712297 Dec 17 22:03 cifs21f1
-rw-r--r-- 1 mythtv daemon           0 Dec 17 22:50 cifs2b79

Is there a setting on either the cifs client or the Samba server which will
prevent these truncated files from being renamed when unlinked?

My smb.conf file is:

------------------------------------------------------------------

Thanks, Mark.

# Samba config file created using SWAT
# from 192.168.1.101 (192.168.1.101)
# Date: 2005/05/16 20:57:04

# Global parameters
[global]
        workgroup = MAGIC
        realm = MAGIC.RAISTLIN.MENTASM.COM
        server string = %h server (Samba %v)
#       security = ADS
        auth methods = guest, sam, winbind
        obey pam restrictions = Yes
        password server = raistlin.mentasm.com
        passdb backend = tdbsam
        passwd program = /usr/bin/passwd %u
        passwd chat = *Enter\snew\sUNIX\spassword:* %n\n
*Retype\snew\sUNIX\spassword:* %n\n .
        syslog = 0
        log file = /var/log/samba/log.%m
        max log size = 1000
        printcap name = cups
        preferred master = No
        domain master = No
        dns proxy = No
        wins server = raistlin.mentasm.com
        ldap ssl = no
        panic action = /usr/share/samba/panic-action %d
        idmap uid = 10000-20000
        idmap gid = 10000-20000
        template homedir = /home/%U
        template shell = /bin/bash
        winbind separator = +
        invalid users = root
        printing = cups
        print command =
        lpq command = %p
        lprm command =
        unix extensions = yes
        case sensitive = yes
        delete readonly = yes
        ea support = yes

[homes]
        comment = Home Directories
        create mask = 0700
        directory mask = 0700
        browseable = No

[Store]
        comment = MythTV Store
        path = /store

[shares]
        comment = Corbin2 Shares
        path = /shares/
        read only = No

[recordings]
        comment = Corbin2 Recordings
        path = /shares/recordings
        read only = No

[freelancer]
        comment = Freelancer Game
        path = /mnt/freelancer

[castle]
        comment = Return To Castle Wolfenstein
        path = /mnt/castle

[printers]
        comment = All Printers
        path = /tmp
        create mask = 0700
        printable = Yes
        browseable = No

[print$]
        comment = Printer Drivers
        path = /var/lib/samba/printers

------------------------------------------------------------------

Thanks, Mark.
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