ext4: iterate over buffer heads correctly in move_extent_per_page()

commit 6ffe77bad5 upstream.

In commit bcff24887d ("ext4: don't read blocks from disk after extents
being swapped") bh is not updated correctly in the for loop and wrong
data has been written to disk. generic/324 catches this on sub-page
block size ext4.

Fixes: bcff24887d ("ext4: don't read blocks from disk after extentsbeing swapped")
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
This commit is contained in:
Eryu Guan 2016-02-21 18:38:44 -05:00 • committed by Luis Henriques
commit d0ba59c19f