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[PATCH] cifs: Missing initialization for largeBuf flag left out of previous changeset 

Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Steve French 2005-04-28 22:41:07 -07:00 committed by Linus Torvalds
parent b8643e1b52
commit 099a58f681
3 changed files with 27 additions and 2 deletions
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6
fs/cifs/CHANGES
View File

@ -11,7 +11,11 @@ cifs_close. Add mount option for remapping reserved characters in
filenames (also allow recognizing files with created by SFU which have any
of these seven reserved characters, except backslash, to be recognized).
Fix invalid transact2 message (we were sometimes trying to interpret
oplock breaks as SMB responses).
oplock breaks as SMB responses). Add ioctl for checking that the
current uid matches the uid of the mounter (needed by umount.cifs).
Reduce the number of large buffer allocations in cifs response processing
(significantly reduces memory pressure under heavy stress with multiple
processes accessing the same server at the same time).
Version 1.31
------------

19
fs/cifs/README
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@ -75,7 +75,7 @@ Allowing User Mounts
====================
To permit users to mount and unmount over directories they own is possible
with the cifs vfs. A way to enable such mounting is to mark the mount.cifs
utility as suid (e.g. "chmod +s /sbin/mount/cifs). To enable users to
utility as suid (e.g. "chmod +s /sbin/mount.cifs). To enable users to
umount shares they mount requires
1) mount.cifs version 1.4 or later
2) an entry for the share in /etc/fstab indicating that a user may
@ -97,6 +97,23 @@ mount.cifs with the following flag:
There is a corresponding manual page for cifs mounting in the Samba 3.0 and
later source tree in docs/manpages/mount.cifs.8
Allowing User Unmounts
======================
To permit users to ummount directories that they have user mounted (see above),
the utility umount.cifs may be used. It may be invoked directly, or if
umount.cifs is placed in /sbin, umount -i can invoke the cifs umount helper
(at least for most versions of the umount utility) for umount of cifs
mounts. As with mount.cifs, to enable user unmounts umount.cifs must be marked
as suid (e.g. "chmod +s /sbin/umount.cifs"). For this utility to succeed
the target path must be a cifs mount, and the uid of the current user must
match the uid of the user who mounted the resource.
Also note that the customary way of allowing user mounts and unmounts is
(instead of using mount.cifs and unmount.cifs as suid) to add a line
to the file /etc/fstab for each //server/share you wish to mount, but
this can become unwieldy when potential mount targets include many
or unpredictable UNC names.
Samba Considerations
====================
To get the maximum benefit from the CIFS VFS, we recommend using a server that

4
fs/cifs/connect.c
View File

@ -396,6 +396,10 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
smb_buffer;
mid_entry->midState =
MID_RESPONSE_RECEIVED;
if(isLargeBuf)
mid_entry->largeBuf = 1;
else
mid_entry->largeBuf = 0;
}
}
spin_unlock(&GlobalMid_Lock);