]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - Grow.c
mdadm: Make add_internal_bitmap() return 0 on success
[thirdparty/mdadm.git] / Grow.c
diff --git a/Grow.c b/Grow.c
old mode 100644 (file)
new mode 100755 (executable)
index a1f8e4c..cdd9d05
--- a/Grow.c
+++ b/Grow.c
@@ -297,6 +297,16 @@ int Grow_addbitmap(char *devname, int fd, struct context *c, struct shape *s)
                        "  between different architectures.  Consider upgrading the Linux kernel.\n");
        }
 
+       /*
+        * We only ever get called if s->bitmap_file is != NULL, so this check
+        * is just here to quiet down static code checkers.
+        */
+       if (!s->bitmap_file)
+               return 1;
+
+       if (strcmp(s->bitmap_file, "clustered") == 0)
+               major = BITMAP_MAJOR_CLUSTERED;
+
        if (ioctl(fd, GET_BITMAP_FILE, &bmf) != 0) {
                if (errno == ENOMEM)
                        pr_err("Memory allocation failure.\n");
@@ -325,12 +335,15 @@ int Grow_addbitmap(char *devname, int fd, struct context *c, struct shape *s)
                if (strcmp(s->bitmap_file, "none")==0) {
                        array.state &= ~(1<<MD_SB_BITMAP_PRESENT);
                        if (ioctl(fd, SET_ARRAY_INFO, &array)!= 0) {
-                               pr_err("failed to remove internal bitmap.\n");
+                               if (array.state & (1<<MD_SB_CLUSTERED))
+                                       pr_err("failed to remove clustered bitmap.\n");
+                               else
+                                       pr_err("failed to remove internal bitmap.\n");
                                return 1;
                        }
                        return 0;
                }
-               pr_err("%s bitmap already present on %s\n", s->bitmap_file, devname);
+               pr_err("bitmap already present on %s\n", devname);
                return 1;
        }
 
@@ -392,6 +405,8 @@ int Grow_addbitmap(char *devname, int fd, struct context *c, struct shape *s)
                for (d=0; d< st->max_devs; d++) {
                        mdu_disk_info_t disk;
                        char *dv;
+                       int fd2;
+
                        disk.number = d;
                        if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
                                continue;
@@ -401,26 +416,29 @@ int Grow_addbitmap(char *devname, int fd, struct context *c, struct shape *s)
                        if ((disk.state & (1<<MD_DISK_SYNC))==0)
                                continue;
                        dv = map_dev(disk.major, disk.minor, 1);
-                       if (dv) {
-                               int fd2 = dev_open(dv, O_RDWR);
-                               if (fd2 < 0)
-                                       continue;
-                               if (st->ss->load_super(st, fd2, NULL)==0) {
-                                       if (st->ss->add_internal_bitmap(
-                                                   st,
-                                                   &s->bitmap_chunk, c->delay, s->write_behind,
-                                                   bitmapsize, offset_setable,
-                                                   major)
-                                               )
-                                               st->ss->write_bitmap(st, fd2, NoUpdate);
-                                       else {
-                                               pr_err("failed to create internal bitmap - chunksize problem.\n");
-                                               close(fd2);
-                                               return 1;
-                                       }
+                       if (!dv)
+                               continue;
+                       fd2 = dev_open(dv, O_RDWR);
+                       if (fd2 < 0)
+                               continue;
+                       rv = st->ss->load_super(st, fd2, NULL);
+                       if (!rv) {
+                               if (!st->ss->add_internal_bitmap(
+                                           st, &s->bitmap_chunk, c->delay,
+                                           s->write_behind, bitmapsize,
+                                           offset_setable, major))
+                                       st->ss->write_bitmap(st, fd2, NodeNumUpdate);
+                               else {
+                                       pr_err("failed to create internal bitmap - chunksize problem.\n");
+                                       close(fd2);
+                                       return 1;
                                }
+                       } else {
+                               pr_err("failed to load super-block.\n");
                                close(fd2);
+                               return 1;
                        }
+                       close(fd2);
                }
                if (offset_setable) {
                        st->ss->getinfo_super(st, mdi, NULL);
@@ -734,6 +752,14 @@ int start_reshape(struct mdinfo *sra, int already_running,
 void abort_reshape(struct mdinfo *sra)
 {
        sysfs_set_str(sra, NULL, "sync_action", "idle");
+       /*
+        * Prior to kernel commit: 23ddff3792f6 ("md: allow suspend_lo and
+        * suspend_hi to decrease as well as increase.")
+        * you could only increase suspend_{lo,hi} unless the region they
+        * covered was empty.  So to reset to 0, you need to push suspend_lo
+        * up past suspend_hi first.  So to maximize the chance of mdadm
+        * working on all kernels, we want to keep doing that.
+        */
        sysfs_set_num(sra, NULL, "suspend_lo", 0x7FFFFFFFFFFFFFFFULL);
        sysfs_set_num(sra, NULL, "suspend_hi", 0);
        sysfs_set_num(sra, NULL, "suspend_lo", 0);
@@ -1056,6 +1082,9 @@ char *analyse_change(char *devname, struct mdinfo *info, struct reshape *re)
                        re->level = 1;
                        return NULL;
                }
+               if (info->array.raid_disks != 2 &&
+                   info->new_level == 5)
+                       return "Can only convert a 2-device array to RAID5";
                if (info->array.raid_disks == 2 &&
                    info->new_level == 5) {
 
@@ -1584,6 +1613,15 @@ int Grow_reshape(char *devname, int fd,
                pr_err("Cannot increase raid-disks on this array beyond %d\n", st->max_devs);
                return 1;
        }
+       if (s->level == 0 &&
+           (array.state & (1<<MD_SB_BITMAP_PRESENT)) &&
+           !(array.state & (1<<MD_SB_CLUSTERED))) {
+                array.state &= ~(1<<MD_SB_BITMAP_PRESENT);
+                if (ioctl(fd, SET_ARRAY_INFO, &array)!= 0) {
+                        pr_err("failed to remove internal bitmap.\n");
+                        return 1;
+                }
+        }
 
        /* in the external case we need to check that the requested reshape is
         * supported, and perform an initial check that the container holds the
@@ -2040,6 +2078,10 @@ size_change_error:
                 * number of devices (On-Line Capacity Expansion) must be
                 * performed at the level of the container
                 */
+               if (fd > 0) {
+                       close(fd);
+                       fd = -1;
+               }
                rv = reshape_container(container, devname, -1, st, &info,
                                       c->force, c->backup_file, c->verbose, 0, 0, 0);
                frozen = 0;
@@ -2972,9 +3014,11 @@ static int reshape_array(char *container, int fd, char *devname,
         * array.  Now that the array has been changed to the right
         * level and frozen, we can safely add them.
         */
-       if (devlist)
-               Manage_subdevs(devname, fd, devlist, verbose,
-                              0,NULL, 0);
+       if (devlist) {
+               if (Manage_subdevs(devname, fd, devlist, verbose,
+                                  0, NULL, 0))
+                       goto release;
+       }
 
        if (reshape.backup_blocks == 0 && data_offset != INVALID_SECTORS)
                reshape.backup_blocks = reshape.before.data_disks * info->array.chunk_size/512;
@@ -4500,8 +4544,8 @@ int Grow_restart(struct supertype *st, struct mdinfo *info, int *fdlist, int cnt
                 * sometimes they aren't... So allow considerable flexability in matching, and allow
                 * this test to be overridden by an environment variable.
                 */
-               if (info->array.utime > (int)__le64_to_cpu(bsb.mtime) + 2*60*60 ||
-                   info->array.utime < (int)__le64_to_cpu(bsb.mtime) - 10*60) {
+               if(time_after(info->array.utime, (unsigned int)__le64_to_cpu(bsb.mtime) + 2*60*60) ||
+                  time_before(info->array.utime, (unsigned int)__le64_to_cpu(bsb.mtime) - 10*60)) {
                        if (check_env("MDADM_GROW_ALLOW_OLD")) {
                                pr_err("accepting backup with timestamp %lu for array with timestamp %lu\n",
                                        (unsigned long)__le64_to_cpu(bsb.mtime),
@@ -4729,7 +4773,7 @@ int Grow_continue_command(char *devname, int fd,
        struct mdinfo *cc = NULL;
        struct mdstat_ent *mdstat = NULL;
        int cfd = -1;
-       int fd2 = -1;
+       int fd2;
 
        dprintf("Grow continue from command line called for %s\n",
                devname);
@@ -4773,8 +4817,6 @@ int Grow_continue_command(char *devname, int fd,
                                continue;
                        err = st->ss->load_super(st, fd2, NULL);
                        close(fd2);
-                       /* invalidate fd2 to avoid possible double close() */
-                       fd2 = -1;
                        if (err)
                                continue;
                        break;
@@ -4870,6 +4912,8 @@ int Grow_continue_command(char *devname, int fd,
 
                sysfs_init(content, fd2, mdstat->devnm);
 
+               close(fd2);
+
                /* start mdmon in case it is not running
                 */
                if (!mdmon_running(container))
@@ -4898,8 +4942,6 @@ int Grow_continue_command(char *devname, int fd,
        ret_val = Grow_continue(fd, st, content, backup_file, 1, 0);
 
 Grow_continue_command_exit:
-       if (fd2 > -1)
-               close(fd2);
        if (cfd > -1)
                close(cfd);
        st->ss->free_super(st);