# git rev-parse -q --verify 66d9282523b3228183b14d9f812872dd2620704d^{commit}
66d9282523b3228183b14d9f812872dd2620704d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 66d9282523b3228183b14d9f812872dd2620704d
# git clean -qxdf
# < git log -1
# commit 66d9282523b3228183b14d9f812872dd2620704d
# Author: Mel Gorman <mgorman@techsingularity.net>
# Date:   Mon Jun 28 16:02:19 2021 +0100
# 
#     mm/page_alloc: Correct return value of populated elements if bulk array is populated
#     
#     Dave Jones reported the following
#     
#             This made it into 5.13 final, and completely breaks NFSD for me
#             (Serving tcp v3 mounts).  Existing mounts on clients hang, as do
#             new mounts from new clients.  Rebooting the server back to rc7
#             everything recovers.
#     
#     The commit b3b64ebd3822 ("mm/page_alloc: do bulk array bounds check after
#     checking populated elements") returns the wrong value if the array is
#     already populated which is interpreted as an allocation failure. Dave
#     reported this fixes his problem and it also passed a test running dbench
#     over NFS.
#     
#     Fixes: b3b64ebd3822 ("mm/page_alloc: do bulk array bounds check after checking populated elements")
#     Reported-and-tested-by: Dave Jones <davej@codemonkey.org.uk>
#     Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
#     Cc: <stable@vger.kernel.org> [5.13+]
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 66d9282523b3228183b14d9f812872dd2620704d
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/net/sched/sch_frag.c: In function 'sch_fragment':
/kisskb/src/net/sched/sch_frag.c:93:10: warning: missing braces around initializer [-Wmissing-braces]
   struct rtable sch_frag_rt = { 0 };
          ^
/kisskb/src/net/sched/sch_frag.c:93:10: warning: (near initialization for 'sch_frag_rt.dst') [-Wmissing-braces]
/kisskb/src/drivers/net/ethernet/chelsio/cxgb4/sge.c: In function 'cxgb4_write_partial_sgl':
/kisskb/src/drivers/net/ethernet/chelsio/cxgb4/sge.c:910:9: warning: missing braces around initializer [-Wmissing-braces]
  struct ulptx_sge_pair buf[MAX_SKB_FRAGS / 2 + 1] = {0}, *to;
         ^
/kisskb/src/drivers/net/ethernet/chelsio/cxgb4/sge.c:910:9: warning: (near initialization for 'buf[0]') [-Wmissing-braces]
/kisskb/src/fs/btrfs/tree-checker.c: In function 'check_root_item':
/kisskb/src/fs/btrfs/tree-checker.c:1071:9: warning: missing braces around initializer [-Wmissing-braces]
  struct btrfs_root_item ri = { 0 };
         ^
/kisskb/src/fs/btrfs/tree-checker.c:1071:9: warning: (near initialization for 'ri.inode') [-Wmissing-braces]
Completed OK
# rm -rf /kisskb/build/linus_ppc64_defconfig_powerpc-gcc4.9
# Build took: 0:03:26.186269