xenbus: maximum buffer size is XENSTORE_PAYLOAD_MAX
commit50bf73796e85ed6a061df6d8474f7cef7870df6a
authorIan Campbell <ian.campbell@citrix.com>
Wed, 4 Jan 2012 11:39:51 +0000 (4 11:39 +0000)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Wed, 4 Jan 2012 22:02:04 +0000 (4 17:02 -0500)
tree27ccd8abb98723da4338075d2e69bc0e688efa5a
parent9e7860cee18241633eddb36a4c34c7b61d8cecbc
xenbus: maximum buffer size is XENSTORE_PAYLOAD_MAX

Use this now that it is defined even though it happens to be == PAGE_SIZE.

The code which takes requests from userspace already validates against the size
of this buffer so no further checks are required to ensure that userspace
requests comply with the protocol in this respect.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
drivers/xen/xenbus/xenbus_dev_frontend.c