#include <lustre_fsfilt.h>
#if defined(__KERNEL__) && defined(LUSTRE_LOG_SERVER)
+static int llog_origin_close(const struct lu_env *env, struct llog_handle *lgh)
+{
+ if (lgh->lgh_hdr != NULL && lgh->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
+ return llog_cat_close(env, lgh);
+ else
+ return llog_close(env, lgh);
+}
-int llog_origin_handle_create(struct ptlrpc_request *req)
+/* Only open is supported, no new llog can be created remotely */
+int llog_origin_handle_open(struct ptlrpc_request *req)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- struct obd_device *disk_obd;
- struct llog_handle *loghandle;
- struct llogd_body *body;
- struct lvfs_run_ctxt saved;
- struct llog_logid *logid = NULL;
- struct llog_ctxt *ctxt;
- char *name = NULL;
- int rc, rc2;
- ENTRY;
+ struct obd_export *exp = req->rq_export;
+ struct obd_device *obd = exp->exp_obd;
+ struct obd_device *disk_obd;
+ struct lvfs_run_ctxt saved;
+ struct llog_handle *loghandle;
+ struct llogd_body *body;
+ struct llog_logid *logid = NULL;
+ struct llog_ctxt *ctxt;
+ char *name = NULL;
+ int rc;
+
+ ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
disk_obd = ctxt->loc_exp->exp_obd;
push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- rc = llog_create(req->rq_svc_thread->t_env, ctxt, &loghandle, logid,
- name);
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle, logid,
+ name, LLOG_OPEN_EXISTS);
if (rc)
GOTO(out_pop, rc);
EXIT;
out_close:
- rc2 = llog_close(req->rq_svc_thread->t_env, loghandle);
- if (!rc)
- rc = rc2;
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
out_pop:
- pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
- return rc;
+ pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+ llog_ctxt_put(ctxt);
+ return rc;
}
-EXPORT_SYMBOL(llog_origin_handle_create);
+EXPORT_SYMBOL(llog_origin_handle_open);
int llog_origin_handle_destroy(struct ptlrpc_request *req)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- struct obd_device *disk_obd;
- struct llog_handle *loghandle;
- struct llogd_body *body;
- struct lvfs_run_ctxt saved;
- struct llog_logid *logid = NULL;
- struct llog_ctxt *ctxt;
- int rc;
- ENTRY;
+ struct obd_device *disk_obd;
+ struct lvfs_run_ctxt saved;
+ struct llogd_body *body;
+ struct llog_logid *logid = NULL;
+ struct llog_ctxt *ctxt;
+ int rc;
+
+ ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
if (body->lgd_logid.lgl_oid > 0)
logid = &body->lgd_logid;
- ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- RETURN(-ENODEV);
+ if (!(body->lgd_llh_flags & LLOG_F_IS_PLAIN))
+ CERROR("%s: wrong llog flags %x\n",
+ req->rq_export->exp_obd->obd_name, body->lgd_llh_flags);
- disk_obd = ctxt->loc_exp->exp_obd;
- push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
- rc = llog_create(req->rq_svc_thread->t_env, ctxt, &loghandle, logid,
- NULL);
- if (rc)
- GOTO(out_pop, rc);
+ disk_obd = ctxt->loc_exp->exp_obd;
+ push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- rc = req_capsule_server_pack(&req->rq_pill);
- if (rc)
- GOTO(out_close, rc = -ENOMEM);
-
- body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
- body->lgd_logid = loghandle->lgh_id;
- rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle,
- LLOG_F_IS_PLAIN, NULL);
- if (rc)
- GOTO(out_close, rc);
- rc = llog_destroy(req->rq_svc_thread->t_env, loghandle);
- if (rc)
- GOTO(out_close, rc);
- llog_free_handle(loghandle);
- EXIT;
-out_close:
- if (rc)
- llog_close(req->rq_svc_thread->t_env, loghandle);
-out_pop:
- pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
- return rc;
+ rc = req_capsule_server_pack(&req->rq_pill);
+ /* erase only if no error and logid is valid */
+ if (rc == 0)
+ rc = llog_erase(req->rq_svc_thread->t_env, ctxt, logid, NULL);
+ pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+ llog_ctxt_put(ctxt);
+ RETURN(rc);
}
EXPORT_SYMBOL(llog_origin_handle_destroy);
int llog_origin_handle_next_block(struct ptlrpc_request *req)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
struct obd_device *disk_obd;
struct llog_handle *loghandle;
struct llogd_body *body;
struct lvfs_run_ctxt saved;
struct llog_ctxt *ctxt;
__u32 flags;
- __u8 *buf;
void *ptr;
- int rc, rc2;
+ int rc;
+
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(-EFAULT);
- OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
- if (!buf)
- RETURN(-ENOMEM);
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
- ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- GOTO(out_free, rc = -ENODEV);
- disk_obd = ctxt->loc_exp->exp_obd;
- push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+ disk_obd = ctxt->loc_exp->exp_obd;
+ push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- rc = llog_create(req->rq_svc_thread->t_env, ctxt, &loghandle,
- &body->lgd_logid, NULL);
- if (rc)
- GOTO(out_pop, rc);
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
+ &body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_pop, rc);
- flags = body->lgd_llh_flags;
+ flags = body->lgd_llh_flags;
rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
NULL);
if (rc)
GOTO(out_close, rc);
- memset(buf, 0, LLOG_CHUNK_SIZE);
- rc = llog_next_block(req->rq_svc_thread->t_env, loghandle,
- &body->lgd_saved_index, body->lgd_index,
- &body->lgd_cur_offset, buf, LLOG_CHUNK_SIZE);
- if (rc)
- GOTO(out_close, rc);
-
req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER,
LLOG_CHUNK_SIZE);
rc = req_capsule_server_pack(&req->rq_pill);
*repbody = *body;
ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
- memcpy(ptr, buf, LLOG_CHUNK_SIZE);
+ rc = llog_next_block(req->rq_svc_thread->t_env, loghandle,
+ &body->lgd_saved_index, body->lgd_index,
+ &body->lgd_cur_offset, ptr, LLOG_CHUNK_SIZE);
+ if (rc)
+ GOTO(out_close, rc);
EXIT;
out_close:
- rc2 = llog_close(req->rq_svc_thread->t_env, loghandle);
- if (!rc)
- rc = rc2;
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
out_pop:
- pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
-out_free:
- OBD_FREE(buf, LLOG_CHUNK_SIZE);
- return rc;
+ pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+ llog_ctxt_put(ctxt);
+ return rc;
}
EXPORT_SYMBOL(llog_origin_handle_next_block);
int llog_origin_handle_prev_block(struct ptlrpc_request *req)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
struct llog_handle *loghandle;
struct llogd_body *body;
struct llogd_body *repbody;
struct lvfs_run_ctxt saved;
struct llog_ctxt *ctxt;
__u32 flags;
- __u8 *buf;
void *ptr;
- int rc, rc2;
+ int rc;
+
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(-EFAULT);
- OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
- if (!buf)
- RETURN(-ENOMEM);
-
- ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- GOTO(out_free, rc = -ENODEV);
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
disk_obd = ctxt->loc_exp->exp_obd;
push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- rc = llog_create(req->rq_svc_thread->t_env, ctxt, &loghandle,
- &body->lgd_logid, NULL);
- if (rc)
- GOTO(out_pop, rc);
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
+ &body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_pop, rc);
- flags = body->lgd_llh_flags;
+ flags = body->lgd_llh_flags;
rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
NULL);
if (rc)
GOTO(out_close, rc);
- memset(buf, 0, LLOG_CHUNK_SIZE);
- rc = llog_prev_block(req->rq_svc_thread->t_env, loghandle,
- body->lgd_index, buf, LLOG_CHUNK_SIZE);
- if (rc)
- GOTO(out_close, rc);
-
req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER,
LLOG_CHUNK_SIZE);
rc = req_capsule_server_pack(&req->rq_pill);
*repbody = *body;
ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
- memcpy(ptr, buf, LLOG_CHUNK_SIZE);
+ rc = llog_prev_block(req->rq_svc_thread->t_env, loghandle,
+ body->lgd_index, ptr, LLOG_CHUNK_SIZE);
+ if (rc)
+ GOTO(out_close, rc);
+
EXIT;
out_close:
- rc2 = llog_close(req->rq_svc_thread->t_env, loghandle);
- if (!rc)
- rc = rc2;
-
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
out_pop:
- pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
-out_free:
- OBD_FREE(buf, LLOG_CHUNK_SIZE);
- return rc;
+ pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+ llog_ctxt_put(ctxt);
+ return rc;
}
EXPORT_SYMBOL(llog_origin_handle_prev_block);
int llog_origin_handle_read_header(struct ptlrpc_request *req)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
struct obd_device *disk_obd;
struct llog_handle *loghandle;
struct llogd_body *body;
struct lvfs_run_ctxt saved;
struct llog_ctxt *ctxt;
__u32 flags;
- int rc, rc2;
+ int rc;
+
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(-EFAULT);
- ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- RETURN(-ENODEV);
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
disk_obd = ctxt->loc_exp->exp_obd;
push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- rc = llog_create(req->rq_svc_thread->t_env, ctxt, &loghandle,
- &body->lgd_logid, NULL);
- if (rc)
- GOTO(out_pop, rc);
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
+ &body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_pop, rc);
- /*
- * llog_init_handle() reads the llog header
- */
- flags = body->lgd_llh_flags;
+ /*
+ * llog_init_handle() reads the llog header
+ */
+ flags = body->lgd_llh_flags;
rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
NULL);
- if (rc)
- GOTO(out_close, rc);
+ if (rc)
+ GOTO(out_close, rc);
+ flags = loghandle->lgh_hdr->llh_flags;
rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
*hdr = *loghandle->lgh_hdr;
EXIT;
out_close:
- rc2 = llog_close(req->rq_svc_thread->t_env, loghandle);
- if (!rc)
- rc = rc2;
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
out_pop:
- pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
- return rc;
+ pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+ llog_ctxt_put(ctxt);
+ return rc;
}
EXPORT_SYMBOL(llog_origin_handle_read_header);
int llog_origin_handle_cancel(struct ptlrpc_request *req)
{
- struct obd_device *obd = req->rq_export->exp_obd;
int num_cookies, rc = 0, err, i, failed = 0;
struct obd_device *disk_obd;
struct llog_cookie *logcookies;
RETURN(-EFAULT);
}
- ctxt = llog_get_context(obd, logcookies->lgc_subsys);
+ ctxt = llog_get_context(req->rq_export->exp_obd,
+ logcookies->lgc_subsys);
if (ctxt == NULL)
RETURN(-ENODEV);
EXPORT_SYMBOL(llog_origin_handle_cancel);
#else /* !__KERNEL__ */
-int llog_origin_handle_create(struct ptlrpc_request *req)
+int llog_origin_handle_open(struct ptlrpc_request *req)
{
LBUG();
return 0;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff