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-rw-r--r--drivers/md/dm-raid.c27
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 598c9e3e41a5..6f823f44b4aa 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -1370,19 +1370,18 @@ static int parse_raid_params(struct raid_set *rs, struct dm_arg_set *as,
* In device-mapper, we specify things in sectors, but
* MD records this value in kB
*/
- value /= 2;
- if (value > COUNTER_MAX) {
+ if (value < 0 || value / 2 > COUNTER_MAX) {
rs->ti->error = "Max write-behind limit out of range";
return -EINVAL;
}
- rs->md.bitmap_info.max_write_behind = value;
+ rs->md.bitmap_info.max_write_behind = value / 2;
} else if (!strcasecmp(key, dm_raid_arg_name_by_flag(CTR_FLAG_DAEMON_SLEEP))) {
if (test_and_set_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags)) {
rs->ti->error = "Only one daemon_sleep argument pair allowed";
return -EINVAL;
}
- if (!value || (value > MAX_SCHEDULE_TIMEOUT)) {
+ if (value < 0) {
rs->ti->error = "daemon sleep period out of range";
return -EINVAL;
}
@@ -1424,27 +1423,33 @@ static int parse_raid_params(struct raid_set *rs, struct dm_arg_set *as,
return -EINVAL;
}
+ if (value < 0) {
+ rs->ti->error = "Bogus stripe cache entries value";
+ return -EINVAL;
+ }
rs->stripe_cache_entries = value;
} else if (!strcasecmp(key, dm_raid_arg_name_by_flag(CTR_FLAG_MIN_RECOVERY_RATE))) {
if (test_and_set_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) {
rs->ti->error = "Only one min_recovery_rate argument pair allowed";
return -EINVAL;
}
- if (value > INT_MAX) {
+
+ if (value < 0) {
rs->ti->error = "min_recovery_rate out of range";
return -EINVAL;
}
- rs->md.sync_speed_min = (int)value;
+ rs->md.sync_speed_min = value;
} else if (!strcasecmp(key, dm_raid_arg_name_by_flag(CTR_FLAG_MAX_RECOVERY_RATE))) {
if (test_and_set_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) {
rs->ti->error = "Only one max_recovery_rate argument pair allowed";
return -EINVAL;
}
- if (value > INT_MAX) {
+
+ if (value < 0) {
rs->ti->error = "max_recovery_rate out of range";
return -EINVAL;
}
- rs->md.sync_speed_max = (int)value;
+ rs->md.sync_speed_max = value;
} else if (!strcasecmp(key, dm_raid_arg_name_by_flag(CTR_FLAG_REGION_SIZE))) {
if (test_and_set_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags)) {
rs->ti->error = "Only one region_size argument pair allowed";
@@ -1490,6 +1495,12 @@ static int parse_raid_params(struct raid_set *rs, struct dm_arg_set *as,
return -EINVAL;
}
+ if (rs->md.sync_speed_max &&
+ rs->md.sync_speed_min > rs->md.sync_speed_max) {
+ rs->ti->error = "Bogus recovery rates";
+ return -EINVAL;
+ }
+
if (validate_region_size(rs, region_size))
return -EINVAL;