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- many fixes in liblustre related stuff. By now liblustre is at least build-able...
[fs/lustre-release.git] / lustre / ptlrpc / llog_server.c
index 742b545..f33ce32 100644 (file)
 #define EXPORT_SYMTAB
 #endif
 
+#ifndef __KERNEL__
+#include <liblustre.h>
+#else
 #include <linux/fs.h>
+#endif
+
 #include <linux/obd_class.h>
 #include <linux/lustre_log.h>
 #include <linux/lustre_net.h>
-#include <portals/list.h>
+#include <libcfs/list.h>
+#include <linux/lustre_fsfilt.h>
+
+#ifdef __KERNEL__
 
-int llog_origin_handle_create(struct ptlrpc_request *req)
+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 obd_run_ctxt saved;
+        struct lvfs_run_ctxt saved;
         struct llog_logid *logid = NULL;
         struct llog_ctxt *ctxt;
-        char * name = NULL;
-        int size = sizeof (*body);
-        int rc, rc2;
+        char *name = NULL;
+        int rc, rc2, size = sizeof (*body);
         ENTRY;
 
         body = lustre_swab_reqbuf(req, 0, sizeof(*body),
-                                 lustre_swab_llogd_body);
+                                  lustre_swab_llogd_body);
         if (body == NULL) {
                 CERROR ("Can't unpack llogd_body\n");
                 GOTO(out, rc =-EFAULT);
@@ -68,12 +74,13 @@ int llog_origin_handle_create(struct ptlrpc_request *req)
                 }
         }
 
-        ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
-        LASSERT(ctxt != NULL);
-        disk_obd = ctxt->loc_exp->exp_obd;
-        push_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
+        ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
+        if (ctxt == NULL)
+                GOTO(out, rc = -EINVAL);
 
-        rc = llog_create(ctxt, &loghandle, logid, name);
+        push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+
+        rc = llog_open(ctxt, &loghandle, logid, name, body->lgd_llh_flags);
         if (rc)
                 GOTO(out_pop, rc);
 
@@ -81,7 +88,7 @@ int llog_origin_handle_create(struct ptlrpc_request *req)
         if (rc)
                 GOTO(out_close, rc = -ENOMEM);
 
-        body = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*body));
+        body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
         body->lgd_logid = loghandle->lgh_id;
 
 out_close:
@@ -89,7 +96,74 @@ out_close:
         if (!rc)
                 rc = rc2;
 out_pop:
-        pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
+        pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+out:
+        RETURN(rc);
+}
+
+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 lvfs_run_ctxt saved;
+        struct llog_ctxt *ctxt;
+        __u32 flags;
+        __u8 *buf;
+        void * ptr;
+        int rc, rc2, size[] = {sizeof (*body), LLOG_CHUNK_SIZE};
+        ENTRY;
+
+        body = lustre_swab_reqbuf(req, 0, sizeof(*body),
+                                  lustre_swab_llogd_body);
+        if (body == NULL) {
+                CERROR ("Can't unpack llogd_body\n");
+                GOTO(out, rc =-EFAULT);
+        }
+
+        OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
+        if (!buf)
+                GOTO(out, rc = -ENOMEM);
+
+        ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
+        if (ctxt == NULL)
+                GOTO(out, rc = -EINVAL);
+        push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+
+        rc = llog_open(ctxt, &loghandle, &body->lgd_logid, NULL, 0);
+        if (rc)
+                GOTO(out_pop, rc);
+
+        flags = body->lgd_llh_flags;
+        rc = llog_init_handle(loghandle, flags, NULL);
+        if (rc)
+                GOTO(out_close, rc);
+
+        memset(buf, 0, LLOG_CHUNK_SIZE);
+        rc = llog_prev_block(loghandle, body->lgd_index, buf, LLOG_CHUNK_SIZE);
+        if (rc)
+                GOTO(out_close, rc);
+
+
+        rc = lustre_pack_reply(req, 2, size, NULL);
+        if (rc)
+                GOTO(out_close, rc = -ENOMEM);
+
+        ptr = lustre_msg_buf(req->rq_repmsg, 0, sizeof (body));
+        memcpy(ptr, body, sizeof(*body));
+
+        ptr = lustre_msg_buf(req->rq_repmsg, 1, LLOG_CHUNK_SIZE);
+        memcpy(ptr, buf, LLOG_CHUNK_SIZE);
+
+out_close:
+        rc2 = llog_close(loghandle);
+        if (!rc)
+                rc = rc2;
+
+out_pop:
+        pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+        OBD_FREE(buf, LLOG_CHUNK_SIZE);
 out:
         RETURN(rc);
 }
@@ -98,10 +172,9 @@ 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 obd_run_ctxt saved;
+        struct lvfs_run_ctxt saved;
         struct llog_ctxt *ctxt;
         __u32 flags;
         __u8 *buf;
@@ -122,12 +195,12 @@ int llog_origin_handle_next_block(struct ptlrpc_request *req)
         if (!buf)
                 GOTO(out, rc = -ENOMEM);
 
-        ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
-        LASSERT(ctxt != NULL);
-        disk_obd = ctxt->loc_exp->exp_obd;
-        push_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
+        ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
+        if (ctxt == NULL)
+                GOTO(out, rc = -EINVAL);
+        push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
 
-        rc = llog_create(ctxt, &loghandle, &body->lgd_logid, NULL);
+        rc = llog_open(ctxt, &loghandle, &body->lgd_logid, NULL, 0);
         if (rc)
                 GOTO(out_pop, rc);
 
@@ -137,9 +210,9 @@ int llog_origin_handle_next_block(struct ptlrpc_request *req)
                 GOTO(out_close, rc);
 
         memset(buf, 0, LLOG_CHUNK_SIZE);
-        rc = llog_next_block(loghandle, &body->lgd_saved_index,
-                             body->lgd_index,
-                             &body->lgd_cur_offset, buf, LLOG_CHUNK_SIZE);
+        rc = llog_next_block(loghandle, (int *)&body->lgd_saved_index,
+                             body->lgd_index, &body->lgd_cur_offset,
+                             buf, LLOG_CHUNK_SIZE);
         if (rc)
                 GOTO(out_close, rc);
 
@@ -160,7 +233,7 @@ out_close:
                 rc = rc2;
 
 out_pop:
-        pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
+        pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
         OBD_FREE(buf, LLOG_CHUNK_SIZE);
 out:
         RETURN(rc);
@@ -170,14 +243,12 @@ 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 llog_log_hdr *hdr;
-        struct obd_run_ctxt saved;
+        struct lvfs_run_ctxt saved;
         struct llog_ctxt *ctxt;
         __u32 flags;
-        __u8 *buf;
         int size[] = {sizeof (*hdr)};
         int rc, rc2;
         ENTRY;
@@ -189,16 +260,12 @@ int llog_origin_handle_read_header(struct ptlrpc_request *req)
                 GOTO(out, rc =-EFAULT);
         }
 
-        OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
-        if (!buf)
-                GOTO(out, rc = -ENOMEM);
-
-        ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
-        LASSERT(ctxt != NULL);
-        disk_obd = ctxt->loc_exp->exp_obd;
-        push_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
+        ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
+        if (ctxt == NULL)
+                GOTO(out, rc = -EINVAL);
+        push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
 
-        rc = llog_create(ctxt, &loghandle, &body->lgd_logid, NULL);
+        rc = llog_open(ctxt, &loghandle, &body->lgd_logid, NULL, 0);
         if (rc)
                 GOTO(out_pop, rc);
 
@@ -208,7 +275,6 @@ int llog_origin_handle_read_header(struct ptlrpc_request *req)
         if (rc)
                 GOTO(out_close, rc);
 
-
         rc = lustre_pack_reply(req, 1, size, NULL);
         if (rc)
                 GOTO(out_close, rc = -ENOMEM);
@@ -222,8 +288,7 @@ out_close:
                 rc = rc2;
 
 out_pop:
-        pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
-        OBD_FREE(buf, LLOG_CHUNK_SIZE);
+        pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
 
 out:
         RETURN(rc);
@@ -238,16 +303,16 @@ int llog_origin_handle_close(struct ptlrpc_request *req)
         RETURN(rc);
 }
 
-#ifdef ENABLE_ORPHANS
 int llog_origin_handle_cancel(struct ptlrpc_request *req)
 {
         struct obd_device *obd = req->rq_export->exp_obd;
-        struct obd_device *disk_obd;
         struct llog_cookie *logcookies;
         struct llog_ctxt *ctxt;
-        int num_cookies, rc = 0;
-        struct obd_run_ctxt saved;
+        int num_cookies, rc = 0, err, i;
+        struct lvfs_run_ctxt saved;
         struct llog_handle *cathandle;
+        struct inode *inode;
+        void *handle;
         ENTRY;
 
         logcookies = lustre_msg_buf(req->rq_reqmsg, 0, sizeof(*logcookies));
@@ -257,27 +322,305 @@ int llog_origin_handle_cancel(struct ptlrpc_request *req)
                 RETURN(-EFAULT);
         }
 
-        ctxt = llog_get_context(obd, logcookies->lgc_subsys);
+        ctxt = llog_get_context(&obd->obd_llogs, logcookies->lgc_subsys);
         if (ctxt == NULL) {
                 CWARN("llog subsys not setup or already cleanup\n");
                 RETURN(-ENOENT);
         }
-        down(&ctxt->loc_sem);
-        disk_obd = ctxt->loc_exp->exp_obd;
-        cathandle = ctxt->loc_handle;
-        LASSERT(cathandle);
 
-        push_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
-        rc = llog_cat_cancel_records(cathandle, num_cookies, logcookies);
+        push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+        for (i = 0; i < num_cookies; i++, logcookies++) {
+                cathandle = ctxt->loc_handle;
+                LASSERT(cathandle != NULL);
+                inode = cathandle->lgh_file->f_dentry->d_inode;
+
+                handle = llog_fsfilt_start(ctxt, inode,
+                                           FSFILT_OP_CANCEL_UNLINK, NULL);
+                if (IS_ERR(handle)) {
+                        CERROR("fsfilt_start failed: %ld\n", PTR_ERR(handle));
+                        GOTO(pop_ctxt, rc = PTR_ERR(handle));
+                }
+
+                rc = llog_cat_cancel_records(cathandle, 1, logcookies);
+
+                err = llog_fsfilt_commit(ctxt, inode, handle, 0);
+                if (err) {
+                        CERROR("error committing transaction: %d\n", err);
+                        if (!rc)
+                                rc = err;
+                        GOTO(pop_ctxt, rc);
+                }
+        }
+pop_ctxt:
+        pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
         if (rc)
                 CERROR("cancel %d llog-records failed: %d\n", num_cookies, rc);
         else
-                CWARN("cancel %d llog-records\n", num_cookies);
-
-        pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
-        up(&ctxt->loc_sem);
+                CDEBUG(D_HA, "cancel %d llog-records\n", num_cookies);
 
         RETURN(rc);
 }
 EXPORT_SYMBOL(llog_origin_handle_cancel);
+
+static int llog_catinfo_config(struct obd_device *obd, char *buf, int buf_len,
+                               char *client)
+{
+        struct mds_obd *mds = &obd->u.mds;
+        struct llog_ctxt *ctxt;
+        struct lvfs_run_ctxt saved;
+        struct llog_handle *handle = NULL;
+        char name[4][64];
+        int rc, i, l, remains = buf_len;
+        char *out = buf;
+
+        ctxt = llog_get_context(&obd->obd_llogs, LLOG_CONFIG_ORIG_CTXT);
+        if (ctxt == NULL || mds == NULL)
+                RETURN(-EOPNOTSUPP);
+
+        push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+
+        sprintf(name[0], "%s", mds->mds_profile);
+        sprintf(name[1], "%s-clean", mds->mds_profile);
+        sprintf(name[2], "%s", client);
+        sprintf(name[3], "%s-clean", client);
+
+        for (i = 0; i < 4; i++) {
+                int index, uncanceled = 0;
+                rc = llog_open(ctxt, &handle, NULL, name[i], 0);
+                if (rc)
+                        GOTO(out_pop, rc);
+                rc = llog_init_handle(handle, 0, NULL);
+                if (rc) {
+                        llog_close(handle);
+                        GOTO(out_pop, rc = -ENOENT);
+                }
+
+                for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index ++) {
+                        if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
+                                uncanceled++;
+                }
+
+                l = snprintf(out, remains, "[Log Name]: %s\nLog Size: %llu\n"
+                             "Last Index: %d\nUncanceled Records: %d\n\n",
+                             name[i],
+                             handle->lgh_file->f_dentry->d_inode->i_size,
+                             handle->lgh_last_idx, uncanceled);
+                out += l;
+                remains -= l;
+
+                llog_close(handle);
+                if (remains <= 0)
+                        break;
+        }
+out_pop:
+        pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+        RETURN(rc);
+}
+
+struct cb_data {
+        struct llog_ctxt *ctxt;
+        char *out;
+        int  remains;
+        int  init;
+};
+
+static int llog_catinfo_cb(struct llog_handle *cat,
+                           struct llog_rec_hdr *rec, void *data)
+{
+        static char *out = NULL;
+        static int remains = 0;
+        struct llog_ctxt *ctxt;
+        struct llog_handle *handle;
+        struct llog_logid *logid;
+        struct llog_logid_rec *lir;
+        int l, rc, index, count = 0;
+        struct cb_data *cbd = (struct cb_data*)data;
+
+        if (cbd->init) {
+                out = cbd->out;
+                remains = cbd->remains;
+                cbd->init = 0;
+        }
+        ctxt = cbd->ctxt;
+
+        if (!(cat->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
+                RETURN(-EINVAL);
+
+        lir = (struct llog_logid_rec *)rec;
+        logid = &lir->lid_id;
+        rc = llog_open(ctxt, &handle, logid, NULL, 0);
+        if (rc)
+                RETURN(-EINVAL);
+        rc = llog_init_handle(handle, 0, NULL);
+        if (rc)
+                GOTO(out_close, rc);
+
+        for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index++) {
+                if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
+                        count++;
+        }
+
+        l = snprintf(out, remains, "\t[Log ID]: #"LPX64"#"LPX64"#%08x\n"
+                     "\tLog Size: %llu\n\tLast Index: %d\n"
+                     "\tUncanceled Records: %d\n",
+                     logid->lgl_oid, logid->lgl_ogr, logid->lgl_ogen,
+                     handle->lgh_file->f_dentry->d_inode->i_size,
+                     handle->lgh_last_idx, count);
+        out += l;
+        remains -= l;
+        cbd->out = out;
+        cbd->remains = remains;
+        if (remains <= 0) {
+                CWARN("Not enough memory\n");
+                rc = -ENOMEM;
+        }
+
+out_close:
+        llog_close(handle);
+        RETURN(rc);
+}
+
+static int llog_catinfo_deletions(struct obd_device *obd, char *buf,
+                                  int buf_len)
+{
+        struct mds_obd *mds = &obd->u.mds;
+        struct llog_handle *handle;
+        struct lvfs_run_ctxt saved;
+        int size, i, count;
+        struct llog_catid *idarray;
+        struct llog_logid *id;
+        char name[32] = CATLIST;
+        int rc;
+        struct cb_data data;
+        struct llog_ctxt *ctxt = llog_get_context(&obd->obd_llogs, 
+                                                  LLOG_CONFIG_ORIG_CTXT);
+
+        if (ctxt == NULL || mds == NULL)
+                RETURN(-EOPNOTSUPP);
+
+        count = mds->mds_dt_desc.ld_tgt_count;
+        size = sizeof(*idarray) * count;
+
+        OBD_ALLOC(idarray, size);
+        if (!idarray)
+                RETURN(-ENOMEM);
+
+        rc = llog_get_cat_list(&obd->obd_lvfs_ctxt, obd->obd_fsops, 
+                               name, count, idarray);
+        if (rc)
+                GOTO(out_free, rc);
+
+        push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+
+        data.ctxt = ctxt;
+        data.out = buf;
+        data.remains = buf_len;
+        for (i = 0; i < count; i++) {
+                int l, index, uncanceled = 0;
+
+                id = &idarray[i].lci_logid;
+                rc = llog_open(ctxt, &handle, id, NULL, 0);
+                if (rc)
+                        GOTO(out_pop, rc);
+                rc = llog_init_handle(handle, 0, NULL);
+                if (rc) {
+                        llog_close(handle);
+                        GOTO(out_pop, rc = -ENOENT);
+                }
+                for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index++) {
+                        if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
+                                uncanceled++;
+                }
+                l = snprintf(data.out, data.remains,
+                             "\n[Catlog ID]: #"LPX64"#"LPX64"#%08x  "
+                             "[Log Count]: %d\n",
+                             id->lgl_oid, id->lgl_ogr, id->lgl_ogen,
+                             uncanceled);
+
+                data.out += l;
+                data.remains -= l;
+                data.init = 1;
+
+                llog_process(handle, llog_catinfo_cb, &data, NULL);
+                llog_close(handle);
+
+                if (data.remains <= 0)
+                        break;
+        }
+out_pop:
+        pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
+out_free:
+        OBD_FREE(idarray, size);
+        RETURN(rc);
+}
+
+int llog_catinfo(struct ptlrpc_request *req)
+{
+        struct obd_export *exp = req->rq_export;
+        struct obd_device *obd = exp->exp_obd;
+        char *keyword;
+        char *buf, *reply;
+        int rc, buf_len = LLOG_CHUNK_SIZE;
+
+        OBD_ALLOC(buf, buf_len);
+        if (buf == NULL)
+                return -ENOMEM;
+        memset(buf, 0, buf_len);
+
+        keyword = lustre_msg_string(req->rq_reqmsg, 0, 0);
+
+        if (strcmp(keyword, "config") == 0) {
+                char *client = lustre_msg_string(req->rq_reqmsg, 1, 0);
+                rc = llog_catinfo_config(obd, buf, buf_len, client);
+        } else if (strcmp(keyword, "deletions") == 0) {
+                rc = llog_catinfo_deletions(obd, buf, buf_len);
+        } else {
+                rc = -EOPNOTSUPP;
+        }
+
+        rc = lustre_pack_reply(req, 1, &buf_len, NULL);
+        if (rc)
+                GOTO(out_free, rc = -ENOMEM);
+
+        reply = lustre_msg_buf(req->rq_repmsg, 0, buf_len);
+        if (strlen(buf) == 0)
+                sprintf(buf, "%s", "No log informations\n");
+        memcpy(reply, buf, buf_len);
+
+out_free:
+        OBD_FREE(buf, buf_len);
+        return rc;
+}
+
+#else /* !__KERNEL__ */
+int llog_origin_handle_open(struct ptlrpc_request *req)
+{
+        LBUG();
+        return 0;
+}
+int llog_origin_handle_prev_block(struct ptlrpc_request *req)
+{
+        LBUG();
+        return 0;
+}
+int llog_origin_handle_next_block(struct ptlrpc_request *req)
+{
+        LBUG();
+        return 0;
+}
+int llog_origin_handle_read_header(struct ptlrpc_request *req)
+{
+        LBUG();
+        return 0;
+}
+int llog_origin_handle_close(struct ptlrpc_request *req)
+{
+        LBUG();
+        return 0;
+}
+int llog_origin_handle_cancel(struct ptlrpc_request *req)
+{
+        LBUG();
+        return 0;
+}
 #endif