# git rev-parse -q --verify 2cc3c4b3c2e9c99e90aaf19cd801ff2c160f283c^{commit}
2cc3c4b3c2e9c99e90aaf19cd801ff2c160f283c
already have revision, skipping fetch
# git checkout -q -f -B kisskb 2cc3c4b3c2e9c99e90aaf19cd801ff2c160f283c
# git clean -qxdf
# < git log -1
# commit 2cc3c4b3c2e9c99e90aaf19cd801ff2c160f283c
# Merge: 6f6aea7e966c f91daf565b0e
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Aug 16 10:55:12 2020 -0700
# 
#     Merge tag 'io_uring-5.9-2020-08-15' of git://git.kernel.dk/linux-block
#     
#     Pull io_uring fixes from Jens Axboe:
#      "A few differerent things in here.
#     
#       Seems like syzbot got some more io_uring bits wired up, and we got a
#       handful of reports and the associated fixes are in here.
#     
#       General fixes too, and a lot of them marked for stable.
#     
#       Lastly, a bit of fallout from the async buffered reads, where we now
#       more easily trigger short reads. Some applications don't really like
#       that, so the io_read() code now handles short reads internally, and
#       got a cleanup along the way so that it's now easier to read (and
#       documented). We're now passing tests that failed before"
#     
#     * tag 'io_uring-5.9-2020-08-15' of git://git.kernel.dk/linux-block:
#       io_uring: short circuit -EAGAIN for blocking read attempt
#       io_uring: sanitize double poll handling
#       io_uring: internally retry short reads
#       io_uring: retain iov_iter state over io_read/io_write calls
#       task_work: only grab task signal lock when needed
#       io_uring: enable lookup of links holding inflight files
#       io_uring: fail poll arm on queue proc failure
#       io_uring: hold 'ctx' reference around task_work queue + execute
#       fs: RWF_NOWAIT should imply IOCB_NOIO
#       io_uring: defer file table grabbing request cleanup for locked requests
#       io_uring: add missing REQ_F_COMP_LOCKED for nested requests
#       io_uring: fix recursive completion locking on oveflow flush
#       io_uring: use TWA_SIGNAL for task_work uncondtionally
#       io_uring: account locked memory before potential error case
#       io_uring: set ctx sq/cq entry count earlier
#       io_uring: Fix NULL pointer dereference in loop_rw_iter()
#       io_uring: add comments on how the async buffered read retry works
#       io_uring: io_async_buf_func() need not test page bit
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 2cc3c4b3c2e9c99e90aaf19cd801ff2c160f283c
# < make -s -j 24 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# < make -s -j 24 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  help
# make -s -j 24 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  olddefconfig
# make -s -j 24 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
In file included from /kisskb/src/arch/ia64/include/uapi/asm/intrinsics.h:22:0,
                 from /kisskb/src/arch/ia64/include/asm/intrinsics.h:11,
                 from /kisskb/src/arch/ia64/include/asm/timex.h:14,
                 from /kisskb/src/include/linux/timex.h:65,
                 from /kisskb/src/include/linux/time32.h:13,
                 from /kisskb/src/include/linux/time.h:73,
                 from /kisskb/src/fs/nfs/read.c:11:
/kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:196:5: note: in expansion of macro 'xchg'
     xchg(&nfs_req_openctx(req)->error, error);
     ^
/kisskb/src/fs/nfs/read.c: In function 'nfs_readpage':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:355:2: note: in expansion of macro 'xchg'
  xchg(&ctx->error, 0);
  ^
No errors detected in 22420 functions.
Completed OK
# rm -rf /kisskb/build/linus_ia64-defconfig_ia64-gcc4.9
# Build took: 0:02:57.084509