# git rev-parse -q --verify dad4f140edaa3f6bb452b6913d41af1ffd672e45^{commit}
dad4f140edaa3f6bb452b6913d41af1ffd672e45
already have revision, skipping fetch
# git checkout -q -f -B kisskb dad4f140edaa3f6bb452b6913d41af1ffd672e45
# git clean -qxdf
# < git log -1
# commit dad4f140edaa3f6bb452b6913d41af1ffd672e45
# Merge: 69d5b97c5973 3a08cd52c37c
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Oct 28 11:35:40 2018 -0700
# 
#     Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
#     
#     Pull XArray conversion from Matthew Wilcox:
#      "The XArray provides an improved interface to the radix tree data
#       structure, providing locking as part of the API, specifying GFP flags
#       at allocation time, eliminating preloading, less re-walking the tree,
#       more efficient iterations and not exposing RCU-protected pointers to
#       its users.
#     
#       This patch set
#     
#        1. Introduces the XArray implementation
#     
#        2. Converts the pagecache to use it
#     
#        3. Converts memremap to use it
#     
#       The page cache is the most complex and important user of the radix
#       tree, so converting it was most important. Converting the memremap
#       code removes the only other user of the multiorder code, which allows
#       us to remove the radix tree code that supported it.
#     
#       I have 40+ followup patches to convert many other users of the radix
#       tree over to the XArray, but I'd like to get this part in first. The
#       other conversions haven't been in linux-next and aren't suitable for
#       applying yet, but you can see them in the xarray-conv branch if you're
#       interested"
#     
#     * 'xarray' of git://git.infradead.org/users/willy/linux-dax: (90 commits)
#       radix tree: Remove multiorder support
#       radix tree test: Convert multiorder tests to XArray
#       radix tree tests: Convert item_delete_rcu to XArray
#       radix tree tests: Convert item_kill_tree to XArray
#       radix tree tests: Move item_insert_order
#       radix tree test suite: Remove multiorder benchmarking
#       radix tree test suite: Remove __item_insert
#       memremap: Convert to XArray
#       xarray: Add range store functionality
#       xarray: Move multiorder_check to in-kernel tests
#       xarray: Move multiorder_shrink to kernel tests
#       xarray: Move multiorder account test in-kernel
#       radix tree test suite: Convert iteration test to XArray
#       radix tree test suite: Convert tag_tagged_items to XArray
#       radix tree: Remove radix_tree_clear_tags
#       radix tree: Remove radix_tree_maybe_preload_order
#       radix tree: Remove split/join code
#       radix tree: Remove radix_tree_update_node_t
#       page cache: Finish XArray conversion
#       dax: Convert page fault handlers to XArray
#       ...
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux-gcc --version
# < git log --format=%s --max-count=1 dad4f140edaa3f6bb452b6913d41af1ffd672e45
# < make -s -j 80 ARCH=m68k O=/kisskb/build/linus_sun3_defconfig_m68k CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux-  sun3_defconfig

WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES
  Depends on [n]: DISCONTIGMEM [=n] || NUMA
  Selected by [y]:
  - SINGLE_MEMORY_CHUNK [=y] && MMU [=y]

WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES
  Depends on [n]: DISCONTIGMEM [=n] || NUMA
  Selected by [y]:
  - SINGLE_MEMORY_CHUNK [=y] && MMU [=y]

WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES
  Depends on [n]: DISCONTIGMEM [=n] || NUMA
  Selected by [y]:
  - SINGLE_MEMORY_CHUNK [=y] && MMU [=y]
# make -s -j 80 ARCH=m68k O=/kisskb/build/linus_sun3_defconfig_m68k CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux-  
<stdin>:1239:2: warning: #warning syscall seccomp not implemented [-Wcpp]
<stdin>:1317:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1320:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1323:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:187:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1686:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/acct.c: In function 'acct_pin_kill':
/kisskb/src/kernel/acct.c:177:2: warning: value computed is not used [-Wunused-value]
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/filter.c: In function 'bpf_clear_redirect_map':
/kisskb/src/net/core/filter.c:3304:4: warning: value computed is not used [-Wunused-value]
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3379:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl':
/kisskb/src/lib/mpi/mpicoder.c:336:12: warning: 'buff' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/i825xx/sun3_82586.c: In function 'sun3_82586_timeout':
/kisskb/src/drivers/net/ethernet/i825xx/sun3_82586.c:993:89: warning: array subscript is above array bounds [-Warray-bounds]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:341:21: note: 'pdeo' was declared here
/kisskb/src/drivers/net/macsec.c: In function 'macsec_del_rxsa':
/kisskb/src/drivers/net/macsec.c:1926:2: warning: 'assoc_num' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/macsec.c:1926:2: warning: 'rx_sc' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/macsec.c: In function 'macsec_del_txsa':
/kisskb/src/drivers/net/macsec.c:2003:2: warning: 'assoc_num' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/macsec.c:2003:2: warning: 'tx_sc' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/macsec.c: In function 'macsec_upd_txsa':
/kisskb/src/drivers/net/macsec.c:2068:5: warning: 'assoc_num' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/macsec.c:2068:24: warning: 'tx_sc' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/macsec.c:2069:21: warning: 'secy' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1819:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1513:31: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1729:46: note: 'linear' was declared here
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sctp/output.c: In function 'sctp_packet_config':
/kisskb/src/include/net/sock.h:1928:19: warning: 'sk' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sctp/output.c:94:15: note: 'sk' was declared here
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:229:28: note: 'next' was declared here
/kisskb/src/fs/posix_acl.c: In function 'get_acl':
/kisskb/src/fs/posix_acl.c:147:3: warning: value computed is not used [-Wunused-value]
/kisskb/src/fs/ocfs2/file.c: In function 'ocfs2_file_write_iter':
/kisskb/src/fs/ocfs2/file.c:2386:3: warning: value computed is not used [-Wunused-value]
Completed OK
# rm -rf /kisskb/build/linus_sun3_defconfig_m68k
# Build took: 0:01:15.981536