-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* tfid - The FID of the target file
* pfid - The FID of the parent of the target file (at the time of
* the operation)
- * name - The name of the target file (at the time of the operation)
+ * sfid - The FID of the source file
+ * spfid - The FID of the parent of the source file
+ * name - The name of the target file (at the time of the operation), the name
+ * of the source file is appended (delimited with '\0') if this
+ * operation involves a source
*
* With just this information, it is not alwasy possible to determine
* the file paths for each operation. For instance, if pfid does not
* changelog are replayed, all the files in this special directory
* will get moved to the location as in the source-fs.
*
- * Shorthand used: f2p(tfid) = fid2path(tfid)
+ * Shorthand used: f2p(fid) = fid2path(fid)
*
* The following are the metadata operations of interest.
* 1. creat
* rm .lustrerepl/[tfid]
* Else if pfid is present on the source-fs,
* if f2p(pfid)+name is present,
- * rm f2p(pfid)+name(pfid,name)
+ * rm f2p(pfid)+name
*
- * 3. move (pfid1,name1) to (pfid2,name2)
- * If pfid2 is present
- * if pfid1 is also present, mv (pfid1,name1) to (pfid2,name2)
- * else mv .lustrerepl/[tfid] to (pfid2,name2)
- * If pfid2 is not present,
- * if pfid1 is present, mv (pfid1,name1) .lustrerepl/[tfid]
+ * 3. move (spfid,sname) to (pfid,name)
+ * If pfid is present
+ * if spfid is also present, mv (spfid,sname) to (pfid,name)
+ * else mv .lustrerepl/[sfid] to (pfid,name)
+ * Else if pfid is not present,
+ * if spfid is present, mv (spfid,sname) .lustrerepl/[sfid]
* If moving out of .lustrerepl
* move out all its children in .lustrerepl.
* [pfid,tfid,name] tracked from (1) is used for this.
#include <utime.h>
#include <sys/xattr.h>
-#include <libcfs/libcfs.h>
#include <libcfs/libcfsutil.h>
-#include <lustre/liblustreapi.h>
-#include <lustre/lustre_idl.h>
+#include <lustre/lustreapi.h>
#include "lustre_rsync.h"
#define REPLICATE_STATUS_VER 1
struct lr_info {
long long recno;
int target_no;
+ unsigned int is_extended:1;
enum changelog_rec_type type;
- char pfid[LR_FID_STR_LEN];
- char tfid[LR_FID_STR_LEN];
- char name[PATH_MAX + 1];
+ char tfid[LR_FID_STR_LEN];
+ char pfid[LR_FID_STR_LEN];
+ char sfid[LR_FID_STR_LEN];
+ char spfid[LR_FID_STR_LEN];
+ char sname[NAME_MAX + 1];
+ char name[NAME_MAX + 1];
char src[PATH_MAX + 1];
char dest[PATH_MAX + 1];
char path[PATH_MAX + 1];
char rsync_ver[PATH_MAX];
struct lr_parent_child_list *parents;
+FILE *debug_log;
+
/* Command line options */
struct option long_opts[] = {
{"source", required_argument, 0, 's'},
{"start-recno", required_argument, 0, 'n'},
{"abort-on-err",no_argument, 0, 'a'},
{"debug", required_argument, 0, 'd'},
- {0, 0, 0, 0}
+ {"debuglog", required_argument, 0, 'D'},
+ {0, 0, 0, 0}
};
/* Command line usage */
"\t--dry-run don't write anything\n");
}
+#define DEBUG_ENTRY(info) \
+ lr_debug(D_TRACE, "***** Start %lld %s (%d) %s %s %s *****\n", \
+ (info)->recno, changelog_type2str((info)->type), \
+ (info)->type, (info)->tfid, (info)->pfid, (info)->name);
+
+#define DEBUG_EXIT(info, rc) \
+ lr_debug(D_TRACE, "##### End %lld %s (%d) %s %s %s rc=%d #####\n", \
+ (info)->recno, changelog_type2str((info)->type), \
+ (info)->type, (info)->tfid, (info)->pfid, (info)->name, rc);
+
/* Print debug information. This is controlled by the value of the
global variable 'debug' */
void lr_debug(int level, const char *fmt, ...)
{
- va_list ap;
+ va_list ap;
- if (level > debug)
- return;
+ if (level > debug)
+ return;
- va_start(ap, fmt);
- vprintf(fmt, ap);
- va_end(ap);
+ va_start(ap, fmt);
+ if (debug_log != NULL)
+ vfprintf(debug_log, fmt, ap);
+ else
+ vfprintf(stdout, fmt, ap);
+ va_end(ap);
}
free(d);
}
-/* remove [info->pfid, ext->tfid] from parents */
+/* remove [info->spfid, info->sfid] from parents */
int lr_remove_pc(const char *pfid, const char *tfid)
{
struct lr_parent_child_list *curr, *prev;
/* Is f2p(pfid)+name != f2p(tfid)? If not the file has moved. */
len = strlen(info->path);
- if (len - 1 >= 0 && info->path[len - 1] == '/')
+ if (len == 1 && info->path[0] == '/')
+ snprintf(info->dest, PATH_MAX, "%s", info->name);
+ else if (len - 1 > 0 && info->path[len - 1] == '/')
snprintf(info->dest, PATH_MAX, "%s%s", info->path, info->name);
else
snprintf(info->dest, PATH_MAX, "%s/%s", info->path, info->name);
/* Is f2p(pfid) present on the target? If not, the parent has
moved */
if (!mkspecial) {
- snprintf(info->dest, PATH_MAX, "%s/%s", status->ls_targets[0],
- info->path);
- if (access(info->dest, F_OK) != 0)
- mkspecial = 1;
+ snprintf(info->dest, PATH_MAX, "%s/%s", status->ls_targets[0],
+ info->path);
+ if (access(info->dest, F_OK) != 0) {
+ lr_debug(DTRACE, "create: parent %s not found\n",
+ info->dest);
+ mkspecial = 1;
+ }
}
for (info->target_no = 0; info->target_no < status->ls_num_targets;
info->target_no++) {
if (rc1)
rc = rc1;
}
- return rc;
+ return rc;
}
/* Replicate a file remove (rmdir/unlink) operation */
continue;
}
}
- return rc;
+ return rc;
}
-/* Replicate a rename/move operation. This operations are tracked by
- two changelog records. */
-int lr_move(struct lr_info *info, struct lr_info *ext)
+/* Replicate a rename/move operation. */
+int lr_move(struct lr_info *info)
{
int rc = 0;
int rc1;
int rc_dest, rc_src;
int special_src = 0;
int special_dest = 0;
+ char srcpath[PATH_MAX + 1] = "";
- rc_dest = lr_get_path(ext, ext->pfid);
- if (rc_dest < 0 && rc_dest != -ENOENT)
- return rc_dest;
+ LASSERT(info->is_extended);
- rc_src = lr_get_path(info, info->pfid);
- if (rc_src < 0 && rc_src != -ENOENT)
- return rc_src;
+ rc_src = lr_get_path(info, info->spfid);
+ if (rc_src < 0 && rc_src != -ENOENT)
+ return rc_src;
+ memcpy(srcpath, info->path, strlen(info->path));
+
+ rc_dest = lr_get_path(info, info->pfid);
+ if (rc_dest < 0 && rc_dest != -ENOENT)
+ return rc_dest;
for (info->target_no = 0; info->target_no < status->ls_num_targets;
info->target_no++) {
if (!rc_dest) {
snprintf(info->dest, PATH_MAX, "%s/%s",
status->ls_targets[info->target_no],
- ext->path);
+ info->path);
if (access(info->dest, F_OK) != 0) {
rc_dest = -errno;
} else {
snprintf(info->dest, PATH_MAX, "%s/%s/%s",
status->ls_targets[info->target_no],
- ext->path, ext->name);
+ info->path, info->name);
}
+ lr_debug(DINFO, "dest path %s rc_dest=%d\n", info->dest,
+ rc_dest);
}
if (rc_dest == -ENOENT) {
snprintf(info->dest, PATH_MAX, "%s/%s/%s",
status->ls_targets[info->target_no],
- SPECIAL_DIR, info->tfid);
+ SPECIAL_DIR, info->sfid);
special_dest = 1;
+ lr_debug(DINFO, "special dest %s\n", info->dest);
}
- if (!rc_src)
- snprintf(info->src, PATH_MAX, "%s/%s/%s",
- status->ls_targets[info->target_no],
- info->path, info->name);
+ if (!rc_src) {
+ snprintf(info->src, PATH_MAX, "%s/%s/%s",
+ status->ls_targets[info->target_no],
+ srcpath, info->sname);
+ lr_debug(DINFO, "src path %s rc_src=%d\n", info->src,
+ rc_src);
+ }
if (rc_src == -ENOENT || (access(info->src, F_OK) != 0 &&
errno == ENOENT)) {
snprintf(info->src, PATH_MAX, "%s/%s/%s",
status->ls_targets[info->target_no],
- SPECIAL_DIR, info->tfid);
+ SPECIAL_DIR, info->sfid);
special_src = 1;
+ lr_debug(DINFO, "special src %s\n", info->src);
}
rc1 = 0;
+ errno = 0;
if (strcmp(info->src, info->dest) != 0) {
rc1 = rename(info->src, info->dest);
if (rc1 == -1)
rc1 = -errno;
+ lr_debug(DINFO, "rename returns %d\n", rc1);
}
- if (special_src) {
- lr_remove_pc(info->pfid, info->tfid);
- if (!special_dest)
- lr_cascade_move(info->tfid, info->dest, info);
+ if (special_src) {
+ rc1 = lr_remove_pc(info->spfid, info->sfid);
+ if (!special_dest)
+ lr_cascade_move(info->sfid, info->dest, info);
}
- if (special_dest)
- lr_add_pc(ext->pfid, info->tfid, ext->name);
+ if (special_dest)
+ rc1 = lr_add_pc(info->pfid, info->sfid, info->name);
lr_debug(DINFO, "move: %s [to] %s rc1=%d, errno=%d\n",
info->src, info->dest, rc1, errno);
if (rc1)
rc = rc1;
}
- return rc;
+ return rc;
}
/* Replicate a hard link */
if (rc1)
rc = rc1;
}
- return rc;
+ return rc;
}
/* Replicate file attributes */
if (rc1)
rc = rc1;
}
- return rc;
+ return rc;
}
/* Replicate xattrs */
rc = rc1;
}
- return rc;
+ return rc;
}
/* Parse a line of changelog entry */
int lr_parse_line(void *priv, struct lr_info *info)
{
- struct changelog_rec *rec;
+ struct changelog_ext_rec *rec;
if (llapi_changelog_recv(priv, &rec) != 0)
return -1;
+ info->is_extended = CHANGELOG_REC_EXTENDED(rec);
info->recno = rec->cr_index;
info->type = rec->cr_type;
sprintf(info->tfid, DFID, PFID(&rec->cr_tfid));
sprintf(info->pfid, DFID, PFID(&rec->cr_pfid));
strncpy(info->name, rec->cr_name, rec->cr_namelen);
- info->name[rec->cr_namelen] = '\0';
- if (verbose > 1)
- printf("Rec %lld: %d %s\n", info->recno, info->type,info->name);
+ if (fid_is_sane(&rec->cr_sfid)) {
+ sprintf(info->sfid, DFID, PFID(&rec->cr_sfid));
+ sprintf(info->spfid, DFID, PFID(&rec->cr_spfid));
+ strncpy(info->sname, changelog_rec_sname(rec),
+ changelog_rec_snamelen(rec));
+ info->sname[changelog_rec_snamelen(rec)] = '\0';
+
+ if (verbose > 1)
+ printf("Rec %lld: %d %s %s\n", info->recno, info->type,
+ info->name, info->sname);
+ } else {
+ info->name[rec->cr_namelen] = '\0';
+
+ if (verbose > 1)
+ printf("Rec %lld: %d %s\n", info->recno, info->type,
+ info->name);
+ }
llapi_changelog_free(&rec);
{
void *changelog_priv;
struct lr_info *info;
- struct lr_info *ext;
+ struct lr_info *ext = NULL;
time_t start;
int xattr_not_supp;
int i;
if (rc) {
fprintf(stderr, "Source path is not a valid Lustre client "
"mountpoint.\n");
- return rc;
+ goto out;
}
if (status->ls_mdt_device[0] == '\0')
snprintf(status->ls_mdt_device, LR_NAME_MAXLEN, "%s%s",
status->ls_source_fs, DEFAULT_MDT);
ext = calloc(1, sizeof(struct lr_info));
- if (ext == NULL)
- return -ENOMEM;
- memcpy(ext, info, sizeof(struct lr_info));
+ if (ext == NULL) {
+ rc = -ENOMEM;
+ goto out;
+ }
for (i = 0, xattr_not_supp = 0; i < status->ls_num_targets; i++) {
snprintf(info->dest, PATH_MAX, "%s/%s", status->ls_targets[i],
if (rc == -1 && errno != EEXIST) {
fprintf(stderr, "Error writing to target path %s.\n",
status->ls_targets[i]);
- return -errno;
+ rc = -errno;
+ goto out;
}
rc = llistxattr(info->src, info->xlist, info->xsize);
if (rc == -1 && errno == ENOTSUP) {
if (rc < 0) {
fprintf(stderr, "Error opening changelog file for fs %s.\n",
status->ls_source_fs);
- return rc;
+ goto out;
}
while (!quit && lr_parse_line(changelog_priv, info) == 0) {
rc = 0;
- if (info->type == CL_RENAME)
- /* Rename operations have an additional changelog
- record of information. */
- lr_parse_line(changelog_priv, ext);
+ if (info->type == CL_RENAME && !info->is_extended) {
+ /* Newer rename operations extends changelog to store
+ * source file information, but old changelog has
+ * another record.
+ */
+ if (lr_parse_line(changelog_priv, ext) != 0)
+ break;
+ memcpy(info->sfid, info->tfid, sizeof(info->sfid));
+ memcpy(info->spfid, info->pfid, sizeof(info->spfid));
+ memcpy(info->tfid, ext->tfid, sizeof(info->tfid));
+ memcpy(info->pfid, ext->pfid, sizeof(info->pfid));
+ strncpy(info->sname, info->name, sizeof(info->sname));
+ strncpy(info->name, ext->name, sizeof(info->name));
+ info->is_extended = 1;
+ }
if (dryrun)
continue;
+ DEBUG_ENTRY(info);
+
switch(info->type) {
case CL_CREATE:
case CL_MKDIR:
rc = lr_remove(info);
break;
case CL_RENAME:
- rc = lr_move(info, ext);
+ rc = lr_move(info);
break;
case CL_HARDLINK:
rc = lr_link(info);
default:
break;
}
+ DEBUG_EXIT(info, rc);
if (rc && rc != -ENOENT) {
lr_print_failure(info, rc);
errors++;
printf("Changelog records consumed: %lld\n", rec_count);
}
- return 0;
+ rc = 0;
+
+out:
+ if (info != NULL)
+ free(info);
+ if (ext != NULL)
+ free(ext);
+
+ return rc;
}
void
if ((rc = lr_init_status()) != 0)
return rc;
- while ((rc = getopt_long(argc, argv, "as:t:m:u:l:vx:zc:ry:n:d:",
- long_opts, NULL)) >= 0) {
+ while ((rc = getopt_long(argc, argv, "as:t:m:u:l:vx:zc:ry:n:d:D:",
+ long_opts, NULL)) >= 0) {
switch (rc) {
case 'a':
/* Assume absolute paths */
if (debug < 0 || debug > 2)
debug = 0;
break;
+ case 'D':
+ /* Undocumented option debug log file */
+ debug_log = fopen(optarg, "a");
+ if (debug_log == NULL) {
+ printf("Cannot open %s for debug log\n",
+ optarg);
+ return -1;
+ }
+ break;
default:
fprintf(stderr, "error: %s: option '%s' "
"unrecognized.\n", argv[0], argv[optind - 1]);
rc = lr_replicate();
- return rc;
+ if (debug_log != NULL)
+ fclose(debug_log);
+ return rc;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff