# git rev-parse -q --verify fe76fc6aaf538df27708ffa3e5d549a6c8e16142^{commit}
fe76fc6aaf538df27708ffa3e5d549a6c8e16142
already have revision, skipping fetch
# git checkout -q -f -B kisskb fe76fc6aaf538df27708ffa3e5d549a6c8e16142
# git clean -qxdf
# < git log -1
# commit fe76fc6aaf538df27708ffa3e5d549a6c8e16142
# Author: Ming Lei <ming.lei@redhat.com>
# Date:   Tue Jan 15 11:59:52 2019 +0800
# 
#     sbitmap: Protect swap_lock from hardirq
#     
#     Because we may call blk_mq_get_driver_tag() directly from
#     blk_mq_dispatch_rq_list() without holding any lock, then HARDIRQ may
#     come and the above DEADLOCK is triggered.
#     
#     Commit ab53dcfb3e7b ("sbitmap: Protect swap_lock from hardirq") tries to
#     fix this issue by using 'spin_lock_bh', which isn't enough because we
#     complete request from hardirq context direclty in case of multiqueue.
#     
#     Cc: Clark Williams <williams@redhat.com>
#     Fixes: ab53dcfb3e7b ("sbitmap: Protect swap_lock from hardirq")
#     Cc: Jens Axboe <axboe@kernel.dk>
#     Cc: Ming Lei <ming.lei@redhat.com>
#     Cc: Guenter Roeck <linux@roeck-us.net>
#     Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
#     Signed-off-by: Ming Lei <ming.lei@redhat.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-ld --version
# < git log --format=%s --max-count=1 fe76fc6aaf538df27708ffa3e5d549a6c8e16142
# < make -s -j 24 ARCH=nds32 O=/kisskb/build/linus_nds32-allmodconfig_nds32le CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-  allmodconfig
# make -s -j 24 ARCH=nds32 O=/kisskb/build/linus_nds32-allmodconfig_nds32le CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-  
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (ret == -EOPNOTSUPP)
     ^
/kisskb/src/drivers/input/joystick/analog.c:172:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^~~~~~~
WARNING: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: "clear_page" [fs/ocfs2/dlm/ocfs2_dlm.ko] has no CRC!
WARNING: "clear_page" [fs/ntfs/ntfs.ko] has no CRC!
WARNING: "copy_page" [fs/nilfs2/nilfs2.ko] has no CRC!
WARNING: "clear_page" [fs/gfs2/gfs2.ko] has no CRC!
WARNING: "copy_page" [fs/fuse/fuse.ko] has no CRC!
WARNING: "clear_page" [fs/fuse/fuse.ko] has no CRC!
WARNING: "clear_page" [fs/exofs/libore.ko] has no CRC!
WARNING: "clear_page" [fs/exofs/exofs.ko] has no CRC!
WARNING: "copy_page" [fs/cachefiles/cachefiles.ko] has no CRC!
WARNING: "copy_page" [fs/btrfs/btrfs.ko] has no CRC!
WARNING: "clear_page" [fs/btrfs/btrfs.ko] has no CRC!
WARNING: "clear_page" [drivers/scsi/sd_mod.ko] has no CRC!
WARNING: "clear_page" [drivers/md/raid456.ko] has no CRC!
WARNING: "clear_page" [drivers/md/dm-integrity.ko] has no CRC!
WARNING: "copy_page" [drivers/gpu/drm/ttm/ttm.ko] has no CRC!
WARNING: "clear_page" [drivers/gpu/drm/ttm/ttm.ko] has no CRC!
WARNING: "copy_page" [drivers/block/drbd/drbd.ko] has no CRC!
Completed OK
# rm -rf /kisskb/build/linus_nds32-allmodconfig_nds32le
# Build took: 0:09:44.079718