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| author | Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com> | 2011-01-29 02:22:36 +0300 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2011-03-15 17:57:35 +0300 |
| commit | 4038866dab4e461e0ef144458bad9d70ce0c98c1 (patch) | |
| tree | b1e90818632d5334a952d6b2d407523d36f22fcd /net/9p/trans_common.h | |
| parent | 9bb6c10a4ed48aef49a7243a6f798694722cf380 (diff) | |
| download | linux-4038866dab4e461e0ef144458bad9d70ce0c98c1.tar.xz | |
[net/9p] Add gup/zero_copy support to VirtIO transport layer.
Modify p9_virtio_request() and req_done() functions to support
additional payload sent down to the transport layer through
tc->pubuf and tc->pkbuf.
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'net/9p/trans_common.h')
| -rw-r--r-- | net/9p/trans_common.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/9p/trans_common.h b/net/9p/trans_common.h index 04977e0ad938..76309223bb02 100644 --- a/net/9p/trans_common.h +++ b/net/9p/trans_common.h @@ -12,6 +12,9 @@ * */ +/* TRUE if it is user context */ +#define P9_IS_USER_CONTEXT (!segment_eq(get_fs(), KERNEL_DS)) + /** * struct trans_rpage_info - To store mapped page information in PDU. * @rp_alloc:Set if this structure is allocd, not a reuse unused space in pdu. |