# git rev-parse -q --verify d723b99ec9e502a414a96a51ec229333f807b47e^{commit}
d723b99ec9e502a414a96a51ec229333f807b47e
already have revision, skipping fetch
# git checkout -q -f -B kisskb d723b99ec9e502a414a96a51ec229333f807b47e
# git clean -qxdf
# < git log -1
# commit d723b99ec9e502a414a96a51ec229333f807b47e
# Merge: 5e0b17b026eb 27bc446e2def
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Aug 21 11:03:38 2020 -0700
# 
#     Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
#     
#     Pull ext4 updates from Ted Ts'o:
#      "Improvements to ext4's block allocator performance for very large file
#       systems, especially when the file system or files which are highly
#       fragmented. There is a new mount option, prefetch_block_bitmaps which
#       will pull in the block bitmaps and set up the in-memory buddy bitmaps
#       when the file system is initially mounted.
#     
#       Beyond that, a lot of bug fixes and cleanups. In particular, a number
#       of changes to make ext4 more robust in the face of write errors or
#       file system corruptions"
#     
#     * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (46 commits)
#       ext4: limit the length of per-inode prealloc list
#       ext4: reorganize if statement of ext4_mb_release_context()
#       ext4: add mb_debug logging when there are lost chunks
#       ext4: Fix comment typo "the the".
#       jbd2: clean up checksum verification in do_one_pass()
#       ext4: change to use fallthrough macro
#       ext4: remove unused parameter of ext4_generic_delete_entry function
#       mballoc: replace seq_printf with seq_puts
#       ext4: optimize the implementation of ext4_mb_good_group()
#       ext4: delete invalid comments near ext4_mb_check_limits()
#       ext4: fix typos in ext4_mb_regular_allocator() comment
#       ext4: fix checking of directory entry validity for inline directories
#       fs: prevent BUG_ON in submit_bh_wbc()
#       ext4: correctly restore system zone info when remount fails
#       ext4: handle add_system_zone() failure in ext4_setup_system_zone()
#       ext4: fold ext4_data_block_valid_rcu() into the caller
#       ext4: check journal inode extents more carefully
#       ext4: don't allow overlapping system zones
#       ext4: handle error of ext4_setup_system_zone() on remount
#       ext4: delete the invalid BUGON in ext4_mb_load_buddy_gfp()
#       ...
# < /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 d723b99ec9e502a414a96a51ec229333f807b47e
# < 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 22423 functions.
Completed OK
# rm -rf /kisskb/build/linus_ia64-defconfig_ia64-gcc4.9
# Build took: 0:02:57.187064