| Message ID | f16053ea-d3b8-a8a2-0178-3981fea5a656@kernel.dk (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Headers | show |
| Series | [GIT,PULL] Turn single vector imports into ITER_UBUF | expand |
The pull request you sent on Fri, 21 Apr 2023 10:53:08 -0600:
> git://git.kernel.dk/linux.git tags/iter-ubuf.2-2023-04-21
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/b9dff2195f8a5847fad801046b26955e05670d31
Thank you!
Hi Linus, This series turns singe vector imports into ITER_UBUF, rather than ITER_IOVEC. The former is more trivial to iterate and advance, and hence a bit more efficient. From some very unscientific testing, ~60% of all iovec imports are single vector. One fixup patch from Josh since this was last posted, fixing a UACCESS complaint that was due to the compiler optimization gone wrong where it moves user_access_begin() outside of copy_compat_iovec_from_user(). This has been in linux-next for about a month without any complaints, outside of the above mentioned UACCESS warning. Please pull for 6.4-rc1! The following changes since commit 3a93e40326c8f470e71d20b4c42d36767450f38f: Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (2023-03-27 12:22:45 -0700) are available in the Git repository at: git://git.kernel.dk/linux.git tags/iter-ubuf.2-2023-04-21 for you to fetch changes up to 50f9a76ef127367847cf62999c79304e48018cfa: iov_iter: Mark copy_compat_iovec_from_user() noinline (2023-04-12 10:46:48 -0600) ---------------------------------------------------------------- iter-ubuf.2-2023-04-21 ---------------------------------------------------------------- Jens Axboe (11): block: ensure bio_alloc_map_data() deals with ITER_UBUF correctly iov_iter: add iter_iovec() helper IB/hfi1: check for user backed iterator, not specific iterator type IB/qib: check for user backed iterator, not specific iterator type ALSA: pcm: check for user backed iterator, not specific iterator type iov_iter: add iter_iov_addr() and iter_iov_len() helpers iov_iter: remove iov_iter_iovec() iov_iter: set nr_segs = 1 for ITER_UBUF iov_iter: overlay struct iovec and ubuf/len iov_iter: convert import_single_range() to ITER_UBUF iov_iter: import single vector iovecs as ITER_UBUF Josh Poimboeuf (1): iov_iter: Mark copy_compat_iovec_from_user() noinline block/blk-map.c | 7 +-- drivers/infiniband/hw/hfi1/file_ops.c | 10 ++-- drivers/infiniband/hw/qib/qib_file_ops.c | 4 +- drivers/net/tun.c | 3 +- drivers/vhost/scsi.c | 2 +- fs/btrfs/file.c | 11 ++-- fs/fuse/file.c | 2 +- fs/read_write.c | 11 ++-- include/linux/uio.h | 57 ++++++++++++++------ io_uring/net.c | 4 +- io_uring/rw.c | 35 ++++++------- lib/iov_iter.c | 89 +++++++++++++++++++++----------- mm/madvise.c | 9 ++-- sound/core/pcm_native.c | 26 ++++++---- 14 files changed, 165 insertions(+), 105 deletions(-)