# git rev-parse -q --verify adfc3ded5c33d67e822525f95404ef0becb099b8^{commit}
adfc3ded5c33d67e822525f95404ef0becb099b8
already have revision, skipping fetch
# git checkout -q -f -B kisskb adfc3ded5c33d67e822525f95404ef0becb099b8
# git clean -qxdf
# < git log -1
# commit adfc3ded5c33d67e822525f95404ef0becb099b8
# Merge: 26bb0d3f38a7 50c52250e2d7
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Sep 16 13:50:14 2024 +0200
# 
#     Merge tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux
#     
#     Pull io_uring async discard support from Jens Axboe:
#      "Sitting on top of both the 6.12 block and io_uring core branches,
#       here's support for async discard through io_uring.
#     
#       This allows applications to issue async discards, rather than rely on
#       the blocking sync ioctl discards we already have. The sync support is
#       difficult to use outside of idle/cleanup periods.
#     
#       On a real (but slow) device, testing shows the following results when
#       compared to sync discard:
#     
#             qd64 sync discard: 21K IOPS, lat avg 3 msec (max 21 msec)
#             qd64 async discard: 76K IOPS, lat avg 845 usec (max 2.2 msec)
#     
#             qd64 sync discard: 14K IOPS, lat avg 5 msec (max 25 msec)
#             qd64 async discard: 56K IOPS, lat avg 1153 usec (max 3.6 msec)
#     
#       and synthetic null_blk testing with the same queue depth and block
#       size settings as above shows:
#     
#             Type    Trim size       IOPS    Lat avg (usec)  Lat Max (usec)
#             ==============================================================
#             sync    4k               144K       444            20314
#             async   4k              1353K        47              595
#             sync    1M                56K      1136            21031
#             async   1M                94K       680              760"
#     
#     * tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux:
#       block: implement async io_uring discard cmd
#       block: introduce blk_validate_byte_range()
#       filemap: introduce filemap_invalidate_pages
#       io_uring/cmd: give inline space in request to cmds
#       io_uring/cmd: expose iowq to cmds
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 adfc3ded5c33d67e822525f95404ef0becb099b8
# make -s -j 160 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  allmodconfig
# < make -s -j 160 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 160 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 160 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:254:1: error: no previous prototype for '__vdso_clock_gettime' [-Werror=missing-prototypes]
  254 | __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts)
      | ^~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:282:1: error: no previous prototype for '__vdso_clock_gettime_stick' [-Werror=missing-prototypes]
  282 | __vdso_clock_gettime_stick(clockid_t clock, struct __kernel_old_timespec *ts)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:307:1: error: no previous prototype for '__vdso_gettimeofday' [-Werror=missing-prototypes]
  307 | __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
      | ^~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:343:1: error: no previous prototype for '__vdso_gettimeofday_stick' [-Werror=missing-prototypes]
  343 | __vdso_gettimeofday_stick(struct __kernel_old_timeval *tv, struct timezone *tz)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[5]: *** [/kisskb/src/scripts/Makefile.build:244: arch/sparc/vdso/vclock_gettime.o] Error 1
make[4]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc/vdso] Error 2
make[4]: *** Waiting for unfinished jobs....
/kisskb/src/kernel/fork.c: In function '__do_sys_clone3':
/kisskb/src/kernel/fork.c:3072:2: error: #warning clone3() entry point is missing, please fix [-Werror=cpp]
 3072 | #warning clone3() entry point is missing, please fix
      |  ^~~~~~~
cc1: all warnings being treated as errors
make[4]: *** [/kisskb/src/scripts/Makefile.build:244: kernel/fork.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc] Error 2
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [/kisskb/src/scripts/Makefile.build:485: kernel] Error 2
make[2]: *** [/kisskb/src/Makefile:1926: .] Error 2
make[1]: *** [/kisskb/src/Makefile:224: __sub-make] Error 2
make: *** [Makefile:224: __sub-make] Error 2
Command 'make -s -j 160 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  ' returned non-zero exit status 2.
# rm -rf /kisskb/build/linus_allmodconfig_sparc64-gcc13
# Build took: 0:08:39.612544