cifs: lower default wsize when unix extensions are not used
cifs: lower default wsize when unix extensions are not used

We've had some reports of servers (namely, the Solaris in-kernel CIFS
server) that don't deal properly with writes that are "too large" even
though they set CAP_LARGE_WRITE_ANDX. Change the default to better
mirror what windows clients do.

Cc: 4fbacc2fa0ffdbb11bf1ad6925b886ebd08dd15f@vger.kernel.org
Cc: Pavel Shilovsky <7cbcbfe495bad5f7f26ddc6bf28ecd9f36b2e347@etersoft.ru>
Reported-by: Nick Davis <500df1bb5d496ba83e2798a0dfe891a963c7c35f@yahoo.com>
Signed-off-by: Jeff Layton <4376fbf8623cd7b7c0232225289bb91cedc0a27f@redhat.com>
Signed-off-by: Steve French <51565b4e5841e493fd669866e11ea3c7c0d781cc@gmail.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas