https://github.com/torvalds/linux
Revision 9d38cd06c3e332093da2c486307395b302e2e31f authored by Linus Torvalds on 16 May 2018, 18:02:54 UTC, committed by Linus Torvalds on 16 May 2018, 18:02:54 UTC
Pull memory barrier for from Steven Rostedt: "The memory barrier usage in updating the random ptr hash for %p in vsprintf is incorrect. Instead of adding the read memory barrier into vsprintf() which will cause a slight degradation to a commonly used function in the kernel just to solve a very unlikely race condition that can only happen at boot up, change the code from using a variable branch to a static_branch. Not only does this solve the race condition, it actually will improve the performance of vsprintf() by removing the conditional branch that is only needed at boot" * tag 'trace-v4.17-rc5-vsprintf' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: vsprintf: Replace memory barrier with static_key for random_ptr_key update
Tip revision: 9d38cd06c3e332093da2c486307395b302e2e31f authored by Linus Torvalds on 16 May 2018, 18:02:54 UTC
Merge tag 'trace-v4.17-rc5-vsprintf' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Merge tag 'trace-v4.17-rc5-vsprintf' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Tip revision: 9d38cd0
| File | Mode | Size |
|---|---|---|
| partitions | ||
| Kconfig | -rw-r--r-- | 6.2 KB |
| Kconfig.iosched | -rw-r--r-- | 2.7 KB |
| Makefile | -rw-r--r-- | 1.5 KB |
| badblocks.c | -rw-r--r-- | 14.5 KB |
| bfq-cgroup.c | -rw-r--r-- | 33.6 KB |
| bfq-iosched.c | -rw-r--r-- | 182.7 KB |
| bfq-iosched.h | -rw-r--r-- | 31.9 KB |
| bfq-wf2q.c | -rw-r--r-- | 52.2 KB |
| bio-integrity.c | -rw-r--r-- | 13.8 KB |
| bio.c | -rw-r--r-- | 49.0 KB |
| blk-cgroup.c | -rw-r--r-- | 38.7 KB |
| blk-core.c | -rw-r--r-- | 105.1 KB |
| blk-exec.c | -rw-r--r-- | 2.9 KB |
| blk-flush.c | -rw-r--r-- | 17.0 KB |
| blk-integrity.c | -rw-r--r-- | 12.1 KB |
| blk-ioc.c | -rw-r--r-- | 11.0 KB |
| blk-lib.c | -rw-r--r-- | 10.8 KB |
| blk-map.c | -rw-r--r-- | 5.9 KB |
| blk-merge.c | -rw-r--r-- | 20.3 KB |
| blk-mq-cpumap.c | -rw-r--r-- | 1.6 KB |
| blk-mq-debugfs.c | -rw-r--r-- | 24.2 KB |
| blk-mq-debugfs.h | -rw-r--r-- | 2.1 KB |
| blk-mq-pci.c | -rw-r--r-- | 1.7 KB |
| blk-mq-rdma.c | -rw-r--r-- | 1.7 KB |
| blk-mq-sched.c | -rw-r--r-- | 15.9 KB |
| blk-mq-sched.h | -rw-r--r-- | 2.8 KB |
| blk-mq-sysfs.c | -rw-r--r-- | 8.1 KB |
| blk-mq-tag.c | -rw-r--r-- | 11.3 KB |
| blk-mq-tag.h | -rw-r--r-- | 2.3 KB |
| blk-mq-virtio.c | -rw-r--r-- | 1.7 KB |
| blk-mq.c | -rw-r--r-- | 77.7 KB |
| blk-mq.h | -rw-r--r-- | 6.7 KB |
| blk-settings.c | -rw-r--r-- | 28.6 KB |
| blk-softirq.c | -rw-r--r-- | 4.3 KB |
| blk-stat.c | -rw-r--r-- | 4.8 KB |
| blk-stat.h | -rw-r--r-- | 5.5 KB |
| blk-sysfs.c | -rw-r--r-- | 24.0 KB |
| blk-tag.c | -rw-r--r-- | 10.0 KB |
| blk-throttle.c | -rw-r--r-- | 68.8 KB |
| blk-timeout.c | -rw-r--r-- | 6.1 KB |
| blk-wbt.c | -rw-r--r-- | 17.6 KB |
| blk-wbt.h | -rw-r--r-- | 4.0 KB |
| blk-zoned.c | -rw-r--r-- | 8.6 KB |
| blk.h | -rw-r--r-- | 11.9 KB |
| bounce.c | -rw-r--r-- | 6.9 KB |
| bsg-lib.c | -rw-r--r-- | 8.8 KB |
| bsg.c | -rw-r--r-- | 21.9 KB |
| cfq-iosched.c | -rw-r--r-- | 127.1 KB |
| cmdline-parser.c | -rw-r--r-- | 4.9 KB |
| compat_ioctl.c | -rw-r--r-- | 10.9 KB |
| deadline-iosched.c | -rw-r--r-- | 13.2 KB |
| elevator.c | -rw-r--r-- | 27.3 KB |
| genhd.c | -rw-r--r-- | 49.4 KB |
| ioctl.c | -rw-r--r-- | 15.2 KB |
| ioprio.c | -rw-r--r-- | 5.0 KB |
| kyber-iosched.c | -rw-r--r-- | 21.7 KB |
| mq-deadline.c | -rw-r--r-- | 20.1 KB |
| noop-iosched.c | -rw-r--r-- | 2.6 KB |
| opal_proto.h | -rw-r--r-- | 9.3 KB |
| partition-generic.c | -rw-r--r-- | 17.0 KB |
| scsi_ioctl.c | -rw-r--r-- | 19.2 KB |
| sed-opal.c | -rw-r--r-- | 58.8 KB |
| t10-pi.c | -rw-r--r-- | 4.9 KB |
Computing file changes ...
