The test case passes 32K as the offset value to msync. This fails on machines
with 64K page size. Fix this by creating a larger file and passing offset
values which are multiples of 64K.
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This test is motivated by a btrfs issue where a ranged fsync would
prevent a subsequent fsync from persisting any extents that were
dirty at the time of the first fsync but that were outside the range
of that first fsync (which should have been persisted by the second
fsync).
This bug in btrfs is fixed by the following linux kernel patch:
Btrfs: fix fsync data loss after a ranged fsync
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Chandan Rajendra
Filipe Manana