diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-08-16 10:50:10 +0530 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2011-10-24 11:13:11 -0500 |
| commit | abfa034e4b8ed0046fa589769e9840af645bc4ba (patch) | |
| tree | 146195e891a2fd63e3fc91f803547abb904b2087 /include/net/9p/9p.h | |
| parent | c3b92c8787367a8bb53d57d9789b558f1295cc96 (diff) | |
fs/9p: Update zero-copy implementation in 9p
* remove lot of update to different data structure
* add a seperate callback for zero copy request.
* above makes non zero copy code path simpler
* remove conditionalizing TREAD/TREADDIR/TWRITE in the zero copy path
* Fix the dotu p9_check_errors with zero copy. Add sufficient doc around
* Add support for both in and output buffers in zero copy callback
* pin and unpin pages in the same context
* use helpers instead of defining page offset and rest of page ourself
* Fix mem leak in p9_check_errors
* Remove 'E' and 'F' in p9pdu_vwritef
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'include/net/9p/9p.h')
| -rw-r--r-- | include/net/9p/9p.h | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index a6326ef8ade6..d83a01300871 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -359,6 +359,9 @@ enum p9_qid_t { /* Room for readdir header */ #define P9_READDIRHDRSZ 24 +/* size of header for zero copy read/write */ +#define P9_ZC_HDR_SZ 4096 + /** * struct p9_qid - file system entity information * @type: 8-bit type &p9_qid_t @@ -555,10 +558,6 @@ struct p9_rstatfs { * @tag: transaction id of the request * @offset: used by marshalling routines to track current position in buffer * @capacity: used by marshalling routines to track total malloc'd capacity - * @pubuf: Payload user buffer given by the caller - * @pkbuf: Payload kernel buffer given by the caller - * @pbuf_size: pubuf/pkbuf(only one will be !NULL) size to be read/write. - * @private: For transport layer's use. * @sdata: payload * * &p9_fcall represents the structure for all 9P RPC @@ -575,10 +574,6 @@ struct p9_fcall { size_t offset; size_t capacity; - char __user *pubuf; - char *pkbuf; - size_t pbuf_size; - void *private; u8 *sdata; }; |