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Michel Lespinasse 6d2052d188 augmented rbtree: rework the RB_DECLARE_CALLBACKS macro definition 
Change the definition of the RBCOMPUTE function.  The propagate callback
repeatedly calls RBCOMPUTE as it moves from leaf to root.  it wants to
stop recomputing once the augmented subtree information doesn't change.
This was previously checked using the == operator, but that only works
when the augmented subtree information is a scalar field.  This commit
modifies the RBCOMPUTE function so that it now sets the augmented subtree
information instead of returning it, and returns a boolean value
indicating if the propagate callback should stop.

The motivation for this change is that I want to introduce augmented
rbtree uses where the augmented data for the subtree is a struct instead
of a scalar.

Link: http://lkml.kernel.org/r/20190703040156.56953-4-walken@google.com
Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Uladzislau Rezki <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-25 17:51:39 -07:00
..
sched tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
unaligned License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atomic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bitmap.h xarray: Add XArray unconditional store operations 2018-10-21 10:45:57 -04:00
bitops.h tools headers: Add limits.h to access __WORDSIZE 2019-08-20 12:03:05 -03:00
bits.h tools headers: Synchronize linux/bits.h with the kernel sources 2019-08-20 12:09:21 -03:00
bug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compiler-gcc.h tools: bpftool: move "__printf()" attributes to header file 2019-08-15 22:06:46 -07:00
compiler.h tools headers: Restore READ_ONCE() C++ compatibility 2018-04-12 09:30:09 -03:00
const.h tools headers: Grab copy of linux/const.h, needed by linux/bits.h 2019-08-20 12:08:23 -03:00
coresight-pmu.h coresight: etm4x: Add kernel configuration for CONTEXTID 2019-04-25 22:00:16 +02:00
ctype.h tools perf: Move from sane_ctype.h obtained from git to the Linux's original 2019-06-25 21:02:47 -03:00
debug_locks.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
delay.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
err.h docs: fix broken documentation links 2019-06-08 13:42:13 -06:00
export.h tools: Restore export.h 2015-08-25 09:44:22 +02:00
filter.h bpf, selftest: test {rd, wr}only flags and direct value access 2019-04-09 17:05:47 -07:00
ftrace.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
gfp.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
hardirq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hash.h tools/headers: Synchronize kernel ABI headers 2017-11-04 09:27:46 +01:00
hashtable.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
interrupt.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
irqflags.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
jhash.h tools/lib/lockdep: Fix compilation for 4.11 2017-06-05 09:28:09 +02:00
kallsyms.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kern_levels.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kernel.h perf script: Pad DSO name for --call-trace 2019-05-28 18:37:44 -03:00
linkage.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
list.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lockdep.h tools/lib/lockdep: Add dummy task_struct state member 2018-09-10 13:48:24 +02:00
log2.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
module.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mutex.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
nmi.h tools/lib/lockdep: Add empty nmi.h 2018-09-10 13:48:23 +02:00
numa.h tools/: replace open encodings for NUMA_NO_NODE 2019-03-05 21:07:14 -08:00
overflow.h tools: bpf: make use of reallocarray 2018-07-11 22:13:34 +02:00
poison.h Drop flex_arrays 2019-03-12 10:04:03 -07:00
proc_fs.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
rbtree_augmented.h augmented rbtree: rework the RB_DECLARE_CALLBACKS macro definition 2019-09-25 17:51:39 -07:00
rbtree.h rbtree: avoid generating code twice for the cached versions (tools copy) 2019-09-25 17:51:39 -07:00
rcu.h rcu: Don't return a value from rcu_assign_pointer() 2019-06-13 15:38:34 -07:00
refcount.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ring_buffer.h tools headers: Add missing perf_event.h include 2019-08-22 11:12:36 -03:00
seq_file.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
sizes.h tools: bpftool: add "prog run" subcommand to test-run programs 2019-07-05 23:48:07 +02:00
spinlock.h xarray: Add XArray unconditional store operations 2018-10-21 10:45:57 -04:00
stacktrace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
string.h tools lib: Move argv_{split,free} from tools/perf/util/ 2019-07-01 22:50:40 -03:00
stringify.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
time64.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
types.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
zalloc.h tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00