Device resize via ->set_capacity() can reveal new partitions (e.g. in
chained partition table formats such as dos extended parts). Restart
partition scan from the beginning after resizing a device.
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Reported-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
fs/partitions/check.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index e238ab2..f80a58d 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -550,7 +550,7 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
res = invalidate_partition(disk, 0);
if (res)
return res;
-
+rescan:
disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
while ((part = disk_part_iter_next(&piter)))
delete_partition(disk, part->partno);
@@ -581,7 +581,7 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
/* add partitions */
for (p = 1; p < state->limit; p++) {
sector_t size, from;
-try_scan:
+
size = state->parts[p].size;
if (!size)
continue;
@@ -612,7 +612,8 @@ try_scan:
check_disk_size_change(disk, bdev);
bdev->bd_invalidated = 0;
}
- goto try_scan;
+ kfree(state);
+ goto rescan;
} else {
/*
* we can not ignore partitions of broken tables
--
1.6.4.2
--
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