# git rev-parse -q --verify c288d9cd710433e5991d58a0764c4d08a933b871^{commit}
c288d9cd710433e5991d58a0764c4d08a933b871
already have revision, skipping fetch
# git checkout -q -f -B kisskb c288d9cd710433e5991d58a0764c4d08a933b871
# git clean -qxdf
# < git log -1
# commit c288d9cd710433e5991d58a0764c4d08a933b871
# Merge: 911a2997a5b7 e149bd742b2d
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Jul 1 12:16:24 2021 -0700
# 
#     Merge tag 'for-5.14/io_uring-2021-06-30' of git://git.kernel.dk/linux-block
#     
#     Pull io_uring updates from Jens Axboe:
#     
#      - Multi-queue iopoll improvement (Fam)
#     
#      - Allow configurable io-wq CPU masks (me)
#     
#      - renameat/linkat tightening (me)
#     
#      - poll re-arm improvement (Olivier)
#     
#      - SQPOLL race fix (Olivier)
#     
#      - Cancelation unification (Pavel)
#     
#      - SQPOLL cleanups (Pavel)
#     
#      - Enable file backed buffers for shmem/memfd (Pavel)
#     
#      - A ton of cleanups and performance improvements (Pavel)
#     
#      - Followup and misc fixes (Colin, Fam, Hao, Olivier)
#     
#     * tag 'for-5.14/io_uring-2021-06-30' of git://git.kernel.dk/linux-block: (83 commits)
#       io_uring: code clean for kiocb_done()
#       io_uring: spin in iopoll() only when reqs are in a single queue
#       io_uring: pre-initialise some of req fields
#       io_uring: refactor io_submit_flush_completions
#       io_uring: optimise hot path restricted checks
#       io_uring: remove not needed PF_EXITING check
#       io_uring: mainstream sqpoll task_work running
#       io_uring: refactor io_arm_poll_handler()
#       io_uring: reduce latency by reissueing the operation
#       io_uring: add IOPOLL and reserved field checks to IORING_OP_UNLINKAT
#       io_uring: add IOPOLL and reserved field checks to IORING_OP_RENAMEAT
#       io_uring: refactor io_openat2()
#       io_uring: simplify struct io_uring_sqe layout
#       io_uring: update sqe layout build checks
#       io_uring: fix code style problems
#       io_uring: refactor io_sq_thread()
#       io_uring: don't change sqpoll creds if not needed
#       io_uring: Create define to modify a SQPOLL parameter
#       io_uring: Fix race condition when sqp thread goes to sleep
#       io_uring: improve in tctx_task_work() resubmission
#       ...
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 c288d9cd710433e5991d58a0764c4d08a933b871
# < make -s -j 48 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# < make -s -j 48 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 48 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 48 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9
# Build took: 0:00:25.877179