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ceph: always send truncation info with read and write osd ops 

This fixes a bug where the read/write ops arrive the osd after
a following truncation request.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Yehuda Sadeh 2010-02-01 16:10:45 -08:00 committed by Sage Weil
parent 0f26c4b21b
commit 0c948992a0
3 changed files with 6 additions and 18 deletions
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2
fs/ceph/ceph_fs.h
View File

@ -38,7 +38,7 @@
#define CEPH_OSD_PROTOCOL 8 /* cluster internal */
#define CEPH_MDS_PROTOCOL 9 /* cluster internal */
#define CEPH_MON_PROTOCOL 5 /* cluster internal */
#define CEPH_OSDC_PROTOCOL 23 /* server/client */
#define CEPH_OSDC_PROTOCOL 24 /* server/client */
#define CEPH_MDSC_PROTOCOL 32 /* server/client */
#define CEPH_MONC_PROTOCOL 15 /* server/client */

16
fs/ceph/osd_client.c
View File

@ -199,11 +199,9 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
struct ceph_osd_request_head *head;
struct ceph_osd_op *op;
void *p;
int do_trunc = truncate_seq && (off + *plen > truncate_size);
int num_op = 1 + do_sync + do_trunc;
int num_op = 1 + do_sync;
size_t msg_size = sizeof(*head) + num_op*sizeof(*op);
int err, i;
u64 prevofs;
if (use_mempool) {
req = mempool_alloc(osdc->req_mempool, GFP_NOFS);
@ -268,22 +266,14 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
req->r_request->hdr.data_len = cpu_to_le32(*plen);
op->payload_len = cpu_to_le32(*plen);
}
op->extent.truncate_size = cpu_to_le64(truncate_size);
op->extent.truncate_seq = cpu_to_le32(truncate_seq);
/* fill in oid */
head->object_len = cpu_to_le32(req->r_oid_len);
memcpy(p, req->r_oid, req->r_oid_len);
p += req->r_oid_len;
/* additional ops */
if (do_trunc) {
op++;
op->op = cpu_to_le16(opcode == CEPH_OSD_OP_READ ?
CEPH_OSD_OP_MASKTRUNC : CEPH_OSD_OP_SETTRUNC);
op->trunc.truncate_seq = cpu_to_le32(truncate_seq);
prevofs = le64_to_cpu((op-1)->extent.offset);
op->trunc.truncate_size = cpu_to_le64(truncate_size -
(off-prevofs));
}
if (do_sync) {
op++;
op->op = cpu_to_le16(CEPH_OSD_OP_STARTSYNC);

6
fs/ceph/rados.h
View File

@ -304,15 +304,13 @@ struct ceph_osd_op {
union {
struct {
__le64 offset, length;
__le64 truncate_size;
__le32 truncate_seq;
} __attribute__ ((packed)) extent;
struct {
__le32 name_len;
__le32 value_len;
} __attribute__ ((packed)) xattr;
struct {
__le64 truncate_size;
__le32 truncate_seq;
} __attribute__ ((packed)) trunc;
struct {
__u8 class_len;
__u8 method_len;