Merge tag 'trace-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...

[J-linux.git] / drivers / md / dm-bufio.c

diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index fce4cbf9529d6c85e5f7df6e99eb71db2c1df053..50f3e673729c351b3e9173d8303728091bef14b1 100644 (file)
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -1526,6 +1526,10 @@ EXPORT_SYMBOL_GPL(dm_bufio_get_block_size);
 sector_t dm_bufio_get_device_size(struct dm_bufio_client *c)
 {
        sector_t s = i_size_read(c->bdev->bd_inode) >> SECTOR_SHIFT;
+       if (s >= c->start)
+               s -= c->start;
+       else
+               s = 0;
        if (likely(c->sectors_per_block_bits >= 0))
                s >>= c->sectors_per_block_bits;
        else