# git rev-parse -q --verify fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b^{commit}
fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
already have revision, skipping fetch
# git checkout -q -f -B kisskb fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
# git clean -qxdf
# < git log -1
# commit fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
# Merge: 8f7be6291529 7d17e83abec1
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Aug 5 13:28:50 2020 -0700
# 
#     Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
#     
#     Pull hmm updates from Jason Gunthorpe:
#      "Ralph has been working on nouveau's use of hmm_range_fault() and
#       migrate_vma() which resulted in this small series. It adds reporting
#       of the page table order from hmm_range_fault() and some optimization
#       of migrate_vma():
#     
#        - Report the size of the page table mapping out of hmm_range_fault().
#     
#          This makes it easier to establish a large/huge/etc mapping in the
#          device's page table.
#     
#        - Allow devices to ignore the invalidations during migration in cases
#          where the migration is not going to change pages.
#     
#          For instance migrating pages to a device does not require the
#          device to invalidate pages already in the device.
#     
#        - Update nouveau and hmm_tests to use the above"
#     
#     * tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
#       mm/hmm/test: use the new migration invalidation
#       nouveau/svm: use the new migration invalidation
#       mm/notifier: add migration invalidation type
#       mm/migrate: add a flags parameter to migrate_vma
#       nouveau: fix storing invalid ptes
#       nouveau/hmm: support mapping large sysmem pages
#       nouveau: fix mapping 2MB sysmem pages
#       nouveau/hmm: fault one page at a time
#       mm/hmm: add tests for hmm_pfn_to_map_order()
#       mm/hmm: provide the page mapping order in hmm_range_fault()
# < /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 fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
# < make -s -j 10 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 10 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 10 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 10 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/bitops.h:19,
                 from /kisskb/src/include/linux/bitops.h:29,
                 from /kisskb/src/include/linux/kernel.h:12,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/preempt.h:11,
                 from /kisskb/src/include/linux/spinlock.h:51,
                 from /kisskb/src/include/linux/seqlock.h:15,
                 from /kisskb/src/include/linux/time.h:6,
                 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 22354 functions.
Completed OK
# rm -rf /kisskb/build/linus_ia64-defconfig_ia64-gcc4.9
# Build took: 0:04:35.800485