# git rev-parse -q --verify e74c98ca2d6ae4376cc15fa2a22483430909d96b^{commit}
e74c98ca2d6ae4376cc15fa2a22483430909d96b
already have revision, skipping fetch
# git checkout -q -f -B kisskb e74c98ca2d6ae4376cc15fa2a22483430909d96b
# git clean -qxdf
# < git log -1
# commit e74c98ca2d6ae4376cc15fa2a22483430909d96b
# Author: Andreas Gruenbacher <agruenba@redhat.com>
# Date:   Wed Jan 30 21:30:36 2019 +0100
# 
#     gfs2: Revert "Fix loop in gfs2_rbm_find"
#     
#     This reverts commit 2d29f6b96d8f80322ed2dd895bca590491c38d34.
#     
#     It turns out that the fix can lead to a ~20 percent performance regression
#     in initial writes to the page cache according to iozone.  Let's revert this
#     for now to have more time for a proper fix.
#     
#     Cc: stable@vger.kernel.org # v3.13+
#     Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
#     Signed-off-by: Bob Peterson <rpeterso@redhat.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 e74c98ca2d6ae4376cc15fa2a22483430909d96b
# < make -s -j 10 ARCH=sparc64 O=/kisskb/build/linus_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# make -s -j 10 ARCH=sparc64 O=/kisskb/build/linus_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1336:2: warning: #warning syscall rseq not implemented [-Wcpp]
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_sparc64-defconfig_sparc64
# Build took: 0:02:09.712871