Fix some problems when setting up loop device with a block device as back file and create/mount ext4 in the loop device.
BTW: blkdev_issue_zeroout retries if we immediately find the device doesn't support zeroout, but it doesn't retry if submit_bio_wait returns -EOPNOTSUPP. Is this correct behavior? Thanks, Shaohua Shaohua Li (3): block/loop: don't hijack error number block/loop: use FALLOC_FL_ZERO_RANGE for REQ_OP_WRITE_ZEROES block/loop: suppress discard IO error message drivers/block/loop.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) -- 2.9.5
