drivers/block/loop.c | 55 ++++++++++++++++++-
fs/ext3/file.c | 2 +
fs/ext3/inode.c | 149 ++++++++++++++++++++++++++++++++++----------------
include/linux/loop.h | 1 +
4 files changed, 160 insertions(+), 47 deletions(-)
It looks like the patch that teaches loop to use the kernel aio
interface got combined with the patch that adds the _bvec entry points
to ext3.
+ if (file->f_op->write_iter&& file->f_op->read_iter) {
+ file->f_flags |= O_DIRECT;
+ lo_flags |= LO_FLAGS_USE_AIO;
+ }
This manual setting of f_flags still looks very fishy to me. I remember
finding that pattern somewhere else but that's not very comforting :).
- z
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