return 0;
}
-int sysfs_get_ll(struct mdinfo *sra, struct mdinfo *dev,
- char *name, unsigned long long *val)
+int sysfs_get_fd(struct mdinfo *sra, struct mdinfo *dev,
+ char *name)
{
char fname[50];
- char buf[50];
- int n;
int fd;
- char *ep;
+
sprintf(fname, "/sys/block/%s/md/%s/%s",
sra->sys_name, dev?dev->sys_name:"", name);
- fd = open(fname, O_RDONLY);
+ fd = open(fname, O_RDWR);
if (fd < 0)
- return -1;
+ fd = open(fname, O_RDONLY);
+ return fd;
+}
+
+int sysfs_fd_get_ll(int fd, unsigned long long *val)
+{
+ char buf[50];
+ int n;
+ char *ep;
+
+ lseek(fd, 0, 0);
n = read(fd, buf, sizeof(buf));
- close(fd);
if (n <= 0)
return -1;
buf[n] = 0;
return 0;
}
-int sysfs_get_str(struct mdinfo *sra, struct mdinfo *dev,
- char *name, char *val, int size)
+int sysfs_get_ll(struct mdinfo *sra, struct mdinfo *dev,
+ char *name, unsigned long long *val)
{
- char fname[50];
int n;
int fd;
- sprintf(fname, "/sys/block/%s/md/%s/%s",
- sra->sys_name, dev?dev->sys_name:"", name);
- fd = open(fname, O_RDONLY);
+
+ fd = sysfs_get_fd(sra, dev, name);
if (fd < 0)
return -1;
- n = read(fd, val, size);
+ n = sysfs_fd_get_ll(fd, val);
close(fd);
+ return n;
+}
+
+int sysfs_fd_get_str(int fd, char *val, int size)
+{
+ int n;
+
+ lseek(fd, 0, 0);
+ n = read(fd, val, size);
if (n <= 0)
return -1;
val[n] = 0;
return n;
}
+int sysfs_get_str(struct mdinfo *sra, struct mdinfo *dev,
+ char *name, char *val, int size)
+{
+ int n;
+ int fd;
+
+ fd = sysfs_get_fd(sra, dev, name);
+ if (fd < 0)
+ return -1;
+ n = sysfs_fd_get_str(fd, val, size);
+ close(fd);
+ return n;
+}
+
int sysfs_set_safemode(struct mdinfo *sra, unsigned long ms)
{
unsigned long sec;
return rv;
}
-int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd, int in_sync)
+int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd)
{
char dv[100];
char nm[100];
rv = sysfs_set_num(sra, sd, "offset", sd->data_offset);
rv |= sysfs_set_num(sra, sd, "size", (sd->component_size+1) / 2);
if (sra->array.level != LEVEL_CONTAINER) {
- if (in_sync)
+ if (sd->recovery_start == MaxSector)
/* This can correctly fail if array isn't started,
* yet, so just ignore status for now.
*/
- sysfs_set_str(sra, sd, "state", "in_sync");
+ sysfs_set_str(sra, sd, "state", "insync");
rv |= sysfs_set_num(sra, sd, "slot", sd->disk.raid_disk);
}
return rv;
else
return found;
}
+
+#ifndef MDASSEMBLE
+
+static char *clean_states[] = {
+ "clear", "inactive", "readonly", "read-auto", "clean", NULL };
+
+int WaitClean(char *dev, int sock, int verbose)
+{
+ int fd;
+ struct mdinfo *mdi;
+ int rv = 1;
+ int devnum;
+
+ fd = open(dev, O_RDONLY);
+ if (fd < 0) {
+ if (verbose)
+ fprintf(stderr, Name ": Couldn't open %s: %s\n", dev, strerror(errno));
+ return 1;
+ }
+
+ devnum = fd2devnum(fd);
+ mdi = sysfs_read(fd, devnum, GET_VERSION|GET_LEVEL|GET_SAFEMODE);
+ if (!mdi) {
+ if (verbose)
+ fprintf(stderr, Name ": Failed to read sysfs attributes for "
+ "%s\n", dev);
+ close(fd);
+ return 0;
+ }
+
+ switch(mdi->array.level) {
+ case LEVEL_LINEAR:
+ case LEVEL_MULTIPATH:
+ case 0:
+ /* safemode delay is irrelevant for these levels */
+ rv = 0;
+
+ }
+
+ /* for internal metadata the kernel handles the final clean
+ * transition, containers can never be dirty
+ */
+ if (!is_subarray(mdi->text_version))
+ rv = 0;
+
+ /* safemode disabled ? */
+ if (mdi->safe_mode_delay == 0)
+ rv = 0;
+
+ if (rv) {
+ int state_fd = sysfs_open(fd2devnum(fd), NULL, "array_state");
+ char buf[20];
+ fd_set fds;
+ struct timeval tm;
+
+ /* minimize the safe_mode_delay and prepare to wait up to 5s
+ * for writes to quiesce
+ */
+ sysfs_set_safemode(mdi, 1);
+ tm.tv_sec = 5;
+ tm.tv_usec = 0;
+
+ /* give mdmon a chance to checkpoint resync */
+ sysfs_set_str(mdi, NULL, "sync_action", "idle");
+
+ FD_ZERO(&fds);
+
+ /* wait for array_state to be clean */
+ while (1) {
+ rv = read(state_fd, buf, sizeof(buf));
+ if (rv < 0)
+ break;
+ if (sysfs_match_word(buf, clean_states) <= 4)
+ break;
+ FD_SET(state_fd, &fds);
+ rv = select(state_fd + 1, NULL, NULL, &fds, &tm);
+ if (rv < 0 && errno != EINTR)
+ break;
+ lseek(state_fd, 0, SEEK_SET);
+ }
+ if (rv < 0)
+ rv = 1;
+ else if (fping_monitor(sock) == 0 ||
+ ping_monitor(mdi->text_version) == 0) {
+ /* we need to ping to close the window between array
+ * state transitioning to clean and the metadata being
+ * marked clean
+ */
+ rv = 0;
+ } else
+ rv = 1;
+ if (rv && verbose)
+ fprintf(stderr, Name ": Error waiting for %s to be clean\n",
+ dev);
+
+ /* restore the original safe_mode_delay */
+ sysfs_set_safemode(mdi, mdi->safe_mode_delay);
+ close(state_fd);
+ }
+
+ sysfs_free(mdi);
+ close(fd);
+
+ return rv;
+}
+#endif /* MDASSEMBLE */
projects / thirdparty / mdadm.git / blobdiff