linux/tools
Peter Zijlstra 2d24dd5798 rbtree: Add generic add and find helpers
I've always been bothered by the endless (fragile) boilerplate for
rbtree, and I recently wrote some rbtree helpers for objtool and
figured I should lift them into the kernel and use them more widely.

Provide:

partial-order; less() based:
 - rb_add(): add a new entry to the rbtree
 - rb_add_cached(): like rb_add(), but for a rb_root_cached

total-order; cmp() based:
 - rb_find(): find an entry in an rbtree
 - rb_find_add(): find an entry, and add if not found

 - rb_find_first(): find the first (leftmost) matching entry
 - rb_next_match(): continue from rb_find_first()
 - rb_for_each(): iterate a sub-tree using the previous two

Inlining and constant propagation should see the compiler inline the
whole thing, including the various compare functions.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Michel Lespinasse <walken@google.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
2021-02-17 14:07:31 +01:00
..
accounting
arch tools headers UAPI: Synch KVM's svm.h header with the kernel 2020-12-24 09:24:20 -03:00
bootconfig tools/bootconfig: Add tracing_on support to helper scripts 2021-01-14 10:32:20 -05:00
bpf bpftool: Fix compilation failure for net.o with older glibc 2021-01-06 15:27:38 -08:00
build Merge remote-tracking branch 'torvalds/master' into perf/core 2020-12-17 14:37:24 -03:00
cgroup blk-iocost: update iocost_monitor.py 2020-09-01 19:38:33 -06:00
debugging docs: Update documentation to reflect what TAINT_CPU_OUT_OF_SPEC means 2020-12-08 10:53:58 -07:00
edid
firewire
firmware
gpio tools: gpio: fix %llu warning in gpio-watch.c 2021-01-18 10:05:35 +01:00
hv
iio iio: add IIO_MOD_O2 modifier 2020-08-22 10:53:12 +01:00
include rbtree: Add generic add and find helpers 2021-02-17 14:07:31 +01:00
io_uring tools/io_uring: fix compile breakage 2020-09-21 07:50:58 -06:00
kvm/kvm_stat tools/kvm_stat: Exempt time-based counters 2020-12-11 19:18:51 -05:00
laptop
leds
lib perf evlist: Fix id index for heterogeneous systems 2021-01-21 17:25:33 -03:00
memory-model tools/memory-model: Label MP tests' producers and consumers 2020-11-06 17:25:17 -08:00
objtool rbtree: Add generic add and find helpers 2021-02-17 14:07:31 +01:00
pci
pcmcia
perf perf script: Fix overrun issue for dynamically-allocated PMU type number 2021-01-21 17:25:33 -03:00
power tools/power/turbostat: Fallback to an MSR read for EPB 2021-02-03 11:58:19 +01:00
scripts tools: Factor HOSTCC, HOSTLD, HOSTAR definitions 2020-11-11 12:18:22 -08:00
spi
testing Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-02-10 11:33:39 -08:00
thermal/tmon
time
usb tools: usb: move to tools buildsystem 2020-08-19 14:11:44 +02:00
virtio tools/virtio: add barrier for aarch64 2020-12-18 16:14:30 -05:00
vm mm: Add PG_arch_2 page flag 2020-09-04 12:46:06 +01:00
wmi
Makefile