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authorNeilBrown <neilb@suse.de>2011-04-05 08:21:03 +1000
committerNeilBrown <neilb@suse.de>2011-04-05 08:21:03 +1000
commit679eb882fc243bfeb6a2586ded92bf5331096a3d (patch)
treed10df84b564d252cd0bd8321dcb259753924d3df
parent7b0bbd0f7181cdc45c034459decc5a14549c15ec (diff)
Move WaitClean from sysfs to Monitor.c
It might not really belong in Monitor, but it really doesn't belong in sysfs.c, and fits well with Wait() Signed-off-by: NeilBrown <neilb@suse.de>
-rw-r--r--Monitor.c102
-rw-r--r--sysfs.c103
2 files changed, 102 insertions, 103 deletions
diff --git a/Monitor.c b/Monitor.c
index c1795663..291e4656 100644
--- a/Monitor.c
+++ b/Monitor.c
@@ -985,3 +985,105 @@ int Wait(char *dev)
mdstat_wait(5);
}
}
+
+#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;
+
+ 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 */
diff --git a/sysfs.c b/sysfs.c
index a7dfcc29..b806e145 100644
--- a/sysfs.c
+++ b/sysfs.c
@@ -828,106 +828,3 @@ int sysfs_freeze_array(struct mdinfo *sra)
return 0;
return 1;
}
-
-#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;
-
- 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 */