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Revert "Revert "dm bufio: subtract the number of initial sectors..."

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Revert submission 1672946

Reason for revert: getting back to mainline with a proper fix
Reverted Changes:
I96ee9a0a8:Revert "dm bufio: subtract the number of initial s...
I23d4da47b:Revert "dm verity: fix FEC for RS roots unaligned ...

Change-Id: Ie37a318c2a2fd61969f1102452b47b4e376071d9
This commit is contained in:
Jaegeuk Kim 2021-04-14 18:47:28 +00:00
parent 2feb4789b7
commit fc503912fd
1 changed files with 4 additions and 0 deletions
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4
drivers/md/dm-bufio.c
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@ -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