* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_LOG
#include <linux/kthread.h>
-#include <obd_class.h>
+#include <llog_swab.h>
#include <lustre_log.h>
+#include <obd_class.h>
#include "llog_internal.h"
-
/*
* Allocate a new log or catalog handle
* Used inside llog_open().
if (rc < 0)
GOTO(out_trans, rc);
- if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY))
+ if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY)) {
rc = llog_declare_destroy(env, loghandle, th);
+ if (rc < 0)
+ GOTO(out_trans, rc);
+ }
th->th_wait_submit = 1;
rc = dt_trans_start_local(env, dt, th);
if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
(llh->llh_count == 1) &&
- (loghandle->lgh_last_idx == LLOG_HDR_BITMAP_SIZE(llh) - 1)) {
+ ((loghandle->lgh_last_idx == LLOG_HDR_BITMAP_SIZE(llh) - 1) ||
+ (loghandle->u.phd.phd_cat_handle != NULL &&
+ loghandle->u.phd.phd_cat_handle->u.chd.chd_current_log !=
+ loghandle))) {
+ /* never try to destroy it again */
+ llh->llh_flags &= ~LLOG_F_ZAP_WHEN_EMPTY;
rc = llog_trans_destroy(env, loghandle, th);
if (rc < 0) {
/* Sigh, can not destroy the final plain llog, but
RETURN(rc);
}
-static int llog_read_header(const struct lu_env *env,
- struct llog_handle *handle,
- struct obd_uuid *uuid)
+int llog_read_header(const struct lu_env *env, struct llog_handle *handle,
+ const struct obd_uuid *uuid)
{
struct llog_operations *lop;
int rc;
+ ENTRY;
rc = llog_handle2ops(handle, &lop);
if (rc)
/* lrh_len should be initialized in llog_init_handle */
handle->lgh_last_idx = 0; /* header is record with index 0 */
+ handle->lgh_write_offset = 0;
llh->llh_count = 1; /* for the header record */
llh->llh_hdr.lrh_type = LLOG_HDR_MAGIC;
LASSERT(handle->lgh_ctxt->loc_chunk_size >=
memcpy(&llh->llh_tgtuuid, uuid,
sizeof(llh->llh_tgtuuid));
llh->llh_bitmap_offset = offsetof(typeof(*llh), llh_bitmap);
+ /* Since update llog header might also call this function,
+ * let's reset the bitmap to 0 here */
+ memset(LLOG_HDR_BITMAP(llh), 0, llh->llh_hdr.lrh_len -
+ llh->llh_bitmap_offset -
+ sizeof(llh->llh_tail));
ext2_set_bit(0, LLOG_HDR_BITMAP(llh));
LLOG_HDR_TAIL(llh)->lrt_len = llh->llh_hdr.lrh_len;
LLOG_HDR_TAIL(llh)->lrt_index = llh->llh_hdr.lrh_index;
rc = 0;
}
- return rc;
+ RETURN(rc);
}
+EXPORT_SYMBOL(llog_read_header);
int llog_init_handle(const struct lu_env *env, struct llog_handle *handle,
int flags, struct obd_uuid *uuid)
struct llog_process_cat_data *cd = lpi->lpi_catdata;
char *buf;
size_t chunk_size;
- __u64 cur_offset;
+ __u64 cur_offset, tmp_offset;
int rc = 0, index = 1, last_index;
int saved_index = 0;
int last_called_index = 0;
* The absolute offset of the current chunk is calculated
* from cur_offset value and stored in chunk_offset variable.
*/
- if (cur_offset % chunk_size != 0) {
+ tmp_offset = cur_offset;
+ if (do_div(tmp_offset, chunk_size) != 0) {
partial_chunk = true;
chunk_offset = cur_offset & ~(chunk_size - 1);
} else {
cd->lpcd_last_idx = last_called_index;
if (unlikely(rc == -EIO && loghandle->lgh_obj != NULL)) {
- /* something bad happened to the processing of a local
- * llog file, probably I/O error or the log got corrupted..
- * to be able to finally release the log we discard any
- * remaining bits in the header */
- CERROR("Local llog found corrupted\n");
- while (index <= last_index) {
- if (ext2_test_bit(index, LLOG_HDR_BITMAP(llh)) != 0)
- llog_cancel_rec(lpi->lpi_env, loghandle, index);
- index++;
+ if (dt_object_remote(loghandle->lgh_obj)) {
+ /* If it is remote object, then -EIO might means
+ * disconnection or eviction, let's return -EAGAIN,
+ * so for update recovery log processing, it will
+ * retry until the umount or abort recovery, see
+ * lod_sub_recovery_thread() */
+ CERROR("%s retry remote llog process\n",
+ loghandle->lgh_ctxt->loc_obd->obd_name);
+ rc = -EAGAIN;
+ } else {
+ /* something bad happened to the processing of a local
+ * llog file, probably I/O error or the log got
+ * corrupted to be able to finally release the log we
+ * discard any remaining bits in the header */
+ CERROR("Local llog found corrupted\n");
+ while (index <= last_index) {
+ if (ext2_test_bit(index,
+ LLOG_HDR_BITMAP(llh)) != 0)
+ llog_cancel_rec(lpi->lpi_env, loghandle,
+ index);
+ index++;
+ }
+ rc = 0;
}
- rc = 0;
}
OBD_FREE_LARGE(buf, chunk_size);
RETURN(rc);
}
EXPORT_SYMBOL(llog_backup);
+
+/* Get size of llog */
+__u64 llog_size(const struct lu_env *env, struct llog_handle *llh)
+{
+ int rc;
+ struct lu_attr la;
+
+ rc = llh->lgh_obj->do_ops->do_attr_get(env, llh->lgh_obj, &la);
+ if (rc) {
+ CERROR("%s: attr_get failed, rc = %d\n",
+ llh->lgh_ctxt->loc_obd->obd_name, rc);
+ return 0;
+ }
+
+ return la.la_size;
+}
+EXPORT_SYMBOL(llog_size);
+
git://git.whamcloud.com / fs / lustre-release.git / blobdiff