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  1. 27 4月, 2010 1 次提交
  3. 21 4月, 2010 1 次提交
    • J
      [CIFS] Neaten cERROR and cFYI macros, reduce text space · b6b38f70
      由 Joe Perches 提交于 
      Neaten cERROR and cFYI macros, reduce text space
~2.5K

Convert '__FILE__ ": " fmt' to '"%s: " fmt', __FILE__' to save text space
Surround macros with do {} while
Add parentheses to macros
Make statement expression macro from macro with assign
Remove now unnecessary parentheses from cFYI and cERROR uses

defconfig with CIFS support old
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 156012	   1760	    148	 157920	  268e0	fs/cifs/built-in.o

defconfig with CIFS support old
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 153508	   1760	    148	 155416	  25f18	fs/cifs/built-in.o

allyesconfig old:
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 309138	   3864	  74824	 387826	  5eaf2	fs/cifs/built-in.o

allyesconfig new
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 305655	   3864	  74824	 384343	  5dd57	fs/cifs/built-in.o
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      b6b38f70
  5. 10 7月, 2009 1 次提交
  7. 31 3月, 2009 1 次提交
    • A
      proc 2/2: remove struct proc_dir_entry::owner · 99b76233
      由 Alexey Dobriyan 提交于 
      Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy
as correctly noted at bug #12454. Someone can lookup entry with NULL
->owner, thus not pinning enything, and release it later resulting
in module refcount underflow.

We can keep ->owner and supply it at registration time like ->proc_fops
and ->data.

But this leaves ->owner as easy-manipulative field (just one C assignment)
and somebody will forget to unpin previous/pin current module when
switching ->owner. ->proc_fops is declared as "const" which should give
some thoughts.

->read_proc/->write_proc were just fixed to not require ->owner for
protection.

rmmod'ed directories will be empty and return "." and ".." -- no harm.
And directories with tricky enough readdir and lookup shouldn't be modular.
We definitely don't want such modular code.

Removing ->owner will also make PDE smaller.

So, let's nuke it.

Kudos to Jeff Layton for reminding about this, let's say, oversight.

http://bugzilla.kernel.org/show_bug.cgi?id=12454Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
      99b76233
  9. 12 3月, 2009 1 次提交
    • S
      [CIFS] Send SMB flush in cifs_fsync · b298f223
      由 Steve French 提交于 
      In contrast to the now-obsolete smbfs, cifs does not send SMB_COM_FLUSH
in response to an explicit fsync(2) to guarantee that all volatile data
is written to stable storage on the server side, provided the server
honors the request (which, to my knowledge, is true for Windows and
Samba with 'strict sync' enabled).
This patch modifies the cifs_fsync implementation to restore the
fsync-behavior of smbfs by triggering SMB_COM_FLUSH after sending
outstanding data on the client side to the server.
Signed-off-by: NHorst Reiterer <horst.reiterer@gmail.com>
Acked-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      b298f223
  11. 17 11月, 2008 2 次提交
  13. 15 11月, 2008 2 次提交
    • J
      cifs: reinstate sharing of SMB sessions sans races · 14fbf50d
      由 Jeff Layton 提交于 
      We do this by abandoning the global list of SMB sessions and instead
moving to a per-server list. This entails adding a new list head to the
TCP_Server_Info struct. The refcounting for the cifsSesInfo is moved to
a non-atomic variable. We have to protect it by a lock anyway, so there's
no benefit to making it an atomic. The list and refcount are protected
by the global cifs_tcp_ses_lock.

The patch also adds a new routines to find and put SMB sessions and
that properly take and put references under the lock.
Signed-off-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      14fbf50d
    • J
      cifs: disable sharing session and tcon and add new TCP sharing code · e7ddee90
      由 Jeff Layton 提交于 
      The code that allows these structs to be shared is extremely racy.
Disable the sharing of SMB and tcon structs for now until we can
come up with a way to do this that's race free.

We want to continue to share TCP sessions, however since they are
required for multiuser mounts. For that, implement a new (hopefully
race-free) scheme. Add a new global list of TCP sessions, and take
care to get a reference to it whenever we're dealing with one.
Signed-off-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      e7ddee90
  15. 14 11月, 2008 1 次提交
  17. 09 8月, 2008 1 次提交
  19. 24 7月, 2008 3 次提交
  21. 29 4月, 2008 1 次提交
  23. 18 2月, 2008 1 次提交
  25. 13 2月, 2008 1 次提交
  27. 08 2月, 2008 1 次提交
  29. 05 10月, 2007 1 次提交
    • S
      [CIFS] Fix cifsd so shuts down when signing fails during mount · a013689d
      由 Steve French 提交于 
      Fixes two problems:
1) we dropped down to negotiating lanman if we did not recognize the
mechanism (krb5 e.g.)
2) we did not stop cifsd (thus will fail when doing rmod cifs with
slab free errors) when we fail tcon but have a bad session (which is
the case in which signing is required but we don't allow signing on
the client)

It also turns on extended security flag in the header when passing
"sec=krb5" on mount command (although kerberos support is not done of
course)
Acked-by: NJeff Layton <jlayton@redhat.com>
CC: Shaggy <shaggy@us.ibm.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      a013689d
  31. 15 9月, 2007 2 次提交
  33. 13 7月, 2007 1 次提交
  35. 29 6月, 2007 1 次提交
  37. 25 6月, 2007 1 次提交
  39. 06 6月, 2007 1 次提交
  41. 22 1月, 2007 1 次提交
  43. 06 6月, 2006 1 次提交
  45. 05 6月, 2006 1 次提交
  47. 03 6月, 2006 1 次提交
  49. 02 6月, 2006 1 次提交
  51. 01 6月, 2006 1 次提交
  53. 13 12月, 2005 1 次提交
  55. 04 12月, 2005 2 次提交
  57. 12 10月, 2005 2 次提交
  59. 11 10月, 2005 2 次提交
  61. 08 10月, 2005 1 次提交
  63. 21 8月, 2005 1 次提交