Commit-ID: 9402e23f90c5a672db7170e4c0f1fc80ca8c009a Gitweb: http://git.kernel.org/tip/9402e23f90c5a672db7170e4c0f1fc80ca8c009a Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Mon, 25 May 2015 11:49:11 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Wed, 27 May 2015 12:21:44 -0300
perf tools: Import rb_erase_init from block/ in the kernel sources I was assuming rb_erase() was setting things up like list_del_init, but the fact that thread__delete() was being sucessfull is because the last thing before deleting is to remove the thread from the machine->dead_threads list, using list_del_init(), that has the same effect as using rb_erase_init()... Introduce this function so that we can use it when removing objects from rb_trees. Then we will be able to BUG_ON(still on a list) in destructors. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/include/linux/rbtree.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tools/perf/util/include/linux/rbtree.h b/tools/perf/util/include/linux/rbtree.h index 2a030c5..f06d89f 100644 --- a/tools/perf/util/include/linux/rbtree.h +++ b/tools/perf/util/include/linux/rbtree.h @@ -1,2 +1,16 @@ +#ifndef __TOOLS_LINUX_PERF_RBTREE_H +#define __TOOLS_LINUX_PERF_RBTREE_H #include <stdbool.h> #include "../../../../include/linux/rbtree.h" + +/* + * Handy for checking that we are not deleting an entry that is + * already in a list, found in block/{blk-throttle,cfq-iosched}.c, + * probably should be moved to lib/rbtree.c... + */ +static inline void rb_erase_init(struct rb_node *n, struct rb_root *root) +{ + rb_erase(n, root); + RB_CLEAR_NODE(n); +} +#endif /* __TOOLS_LINUX_PERF_RBTREE_H */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
