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Subject[PATCH 3/6] Check for device resize when rescanning partitions
Date
Check for device resize when rescanning partitions

Check for device resize in the rescan_partitions() routine. If the device
has been resized, the bdev size is set to match. The rescan_partitions()
routine is called when opening the device and when calling the
BLKRRPART ioctl.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
---

fs/partitions/check.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)


diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index e6f378f..77cfe63 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -504,7 +504,6 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
res = invalidate_partition(disk, 0);
if (res)
return res;
- bdev->bd_invalidated = 0;

disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
while ((part = disk_part_iter_next(&piter)))
@@ -513,6 +512,8 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)

if (disk->fops->revalidate_disk)
disk->fops->revalidate_disk(disk);
+ check_disk_size_change(disk, bdev);
+ bdev->bd_invalidated = 0;
if (!get_capacity(disk) || !(state = check_partition(disk, bdev)))
return 0;
if (IS_ERR(state)) /* I/O error reading the partition table */


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