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  1. 23 Oct, 2008 1 commit
    • Steve French's avatar
      [CIFS] improve setlease handling · 84210e91
      Steve French authored 
      fcntl(F_SETLEASE) currently is not exported by cifs (nor by local file
systems) so cifs grants leases based on how other local processes have
opened the file not by whether the file is cacheable (oplocked).  This
adds the check to make sure that the file is cacheable on the client
before checking whether we can grant the lease locally
(generic_setlease).  It also adds a mount option for cifs (locallease)
if the user wants to override this and try to grant leases even
if the server did not grant oplock.
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
      84210e91
  3. 21 Oct, 2008 1 commit
    • Jeff Layton's avatar
      [CIFS] fix saving of resume key before CIFSFindNext · a364bc0b
      Jeff Layton authored 
      We recently fixed the cifs readdir code so that it saves the resume key
before calling CIFSFindNext. Unfortunately, this assumes that we have
just done a CIFSFindFirst (or FindNext) and have resume info to save.
This isn't necessarily the case. Fix the code to save resume info if we
had to reinitiate the search, and after a FindNext.

This fixes connectathon basic test6 against NetApp filers.
Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
      a364bc0b
  5. 20 Oct, 2008 4 commits
  7. 17 Oct, 2008 1 commit
  9. 16 Oct, 2008 2 commits
    • Jeff Layton's avatar
      [CIFS] eliminate usage of kthread_stop for cifsd · 469ee614
      Jeff Layton authored 
      When cifs_demultiplex_thread was converted to a kthread based kernel
thread, great pains were taken to make it so that kthread_stop would be
used to bring it down. This just added unnecessary complexity since we
needed to use a signal anyway to break out of kernel_recvmsg.

Also, cifs_demultiplex_thread does a bit of cleanup as it's exiting, and
we need to be certain that this gets done. It's possible for a kthread
to exit before its main function is ever run if kthread_stop is called
soon after its creation. While I'm not sure that this is a real problem
with cifsd now, it could be at some point in the future if cifs_mount is
ever changed to bring down the thread quickly.

The upshot here is that using kthread_stop to bring down the thread just
adds extra complexity with no real benefit. This patch changes the code
to use the original method to bring down the thread, but still leaves it
so that the thread is actually started with kthread_run.

This seems to fix the deadlock caused by the reproducer in this bug
report:

https://bugzilla.samba.org/show_bug.cgi?id=5720Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
      469ee614
    • Steve French's avatar
      [CIFS] Add nodfs mount option · 2c1b8615
      Steve French authored 
      Older samba server (eg. 3.0.24 from Debian etch) don't work correctly,
if DFS paths are used. Such server claim that they support DFS, but fail
to process some requests with DFS paths. Starting with Linux 2.6.26,
the cifs clients starts sending DFS paths in such situations, rendering
it unuseable with older samba servers.

The nodfs mount options forces a share to be used with non DFS paths,
even if the server claims, that it supports it.
Signed-off-by: default avatarMartin Koegler <mkoegler@auto.tuwien.ac.at>
Acked-by: default avatarJeff Layton <jlayton@redhat.com>
Acked-by: default avatarIgor Mammedov <niallain@gmail.com>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
      2c1b8615
  11. 13 Oct, 2008 31 commits