# git rev-parse -q --verify b284d4d5a6785f8cd07eda2646a95782373cd01e^{commit}
b284d4d5a6785f8cd07eda2646a95782373cd01e
already have revision, skipping fetch
# git checkout -q -f -B kisskb b284d4d5a6785f8cd07eda2646a95782373cd01e
# git clean -qxdf
# < git log -1
# commit b284d4d5a6785f8cd07eda2646a95782373cd01e
# Merge: a7726f6 9122eed
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Apr 10 12:25:30 2018 -0700
# 
#     Merge tag 'ceph-for-4.17-rc1' of git://github.com/ceph/ceph-client
#     
#     Pull ceph updates from Ilya Dryomov:
#      "The big ticket items are:
#     
#        - support for rbd "fancy" striping (myself).
#     
#          The striping feature bit is now fully implemented, allowing mapping
#          v2 images with non-default striping patterns. This completes
#          support for --image-format 2.
#     
#        - CephFS quota support (Luis Henriques and Zheng Yan).
#     
#          This set is based on the new SnapRealm code in the upcoming v13.y.z
#          ("Mimic") release. Quota handling will be rejected on older
#          filesystems.
#     
#        - memory usage improvements in CephFS (Chengguang Xu).
#     
#          Directory specific bits have been split out of ceph_file_info and
#          some effort went into improving cap reservation code to avoid OOM
#          crashes.
#     
#       Also included a bunch of assorted fixes all over the place from
#       Chengguang and others"
#     
#     * tag 'ceph-for-4.17-rc1' of git://github.com/ceph/ceph-client: (67 commits)
#       ceph: quota: report root dir quota usage in statfs
#       ceph: quota: add counter for snaprealms with quota
#       ceph: quota: cache inode pointer in ceph_snap_realm
#       ceph: fix root quota realm check
#       ceph: don't check quota for snap inode
#       ceph: quota: update MDS when max_bytes is approaching
#       ceph: quota: support for ceph.quota.max_bytes
#       ceph: quota: don't allow cross-quota renames
#       ceph: quota: support for ceph.quota.max_files
#       ceph: quota: add initial infrastructure to support cephfs quotas
#       rbd: remove VLA usage
#       rbd: fix spelling mistake: "reregisteration" -> "reregistration"
#       ceph: rename function drop_leases() to a more descriptive name
#       ceph: fix invalid point dereference for error case in mdsc destroy
#       ceph: return proper bool type to caller instead of pointer
#       ceph: optimize memory usage
#       ceph: optimize mds session register
#       libceph, ceph: add __init attribution to init funcitons
#       ceph: filter out used flags when printing unused open flags
#       ceph: don't wait on writeback when there is no more dirty pages
#       ...
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < git log --format=%s --max-count=1 b284d4d5a6785f8cd07eda2646a95782373cd01e
# < make -s -j 20 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  defconfig
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
# make -s -j 20 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
CONFIG_CC_STACKPROTECTOR_AUTO: Compiler does not support any known stack-protector
Completed OK
# rm -rf /kisskb/build/linus_xtensa-defconfig_xtensa
# Build took: 0:00:35.072936