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authorVedang Patel <vedang.patel@intel.com>2018-01-16 03:51:38 +0100
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2018-03-10 22:05:49 +0100
commitc193707dde77ace92a649cd59a17e105e2fbeaef (patch)
tree4469f19c58457806bb5a1ea7ed3508e140b19cea /kernel/trace/tracing_map.h
parenttracing: Add support to detect and avoid duplicates (diff)
downloadlinux-c193707dde77ace92a649cd59a17e105e2fbeaef.tar.xz
linux-c193707dde77ace92a649cd59a17e105e2fbeaef.zip
tracing: Remove code which merges duplicates
We now have the logic to detect and remove duplicates in the tracing_map hash table. The code which merges duplicates in the histogram is redundant now. So, modify this code just to detect duplicates. The duplication detection code is still kept to ensure that any rare race condition which might cause duplicates does not go unnoticed. Link: http://lkml.kernel.org/r/55215cf59e2674391bdaf772fdafc4c393352b03.1516069914.git.tom.zanussi@linux.intel.com Signed-off-by: Vedang Patel <vedang.patel@intel.com> Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/tracing_map.h')
-rw-r--r--kernel/trace/tracing_map.h7
1 files changed, 0 insertions, 7 deletions
diff --git a/kernel/trace/tracing_map.h b/kernel/trace/tracing_map.h
index 5b5bbf8ae550..de57887c0670 100644
--- a/kernel/trace/tracing_map.h
+++ b/kernel/trace/tracing_map.h
@@ -215,11 +215,6 @@ struct tracing_map {
* Element allocation occurs before tracing begins, when the
* tracing_map_init() call is made by client code.
*
- * @elt_copy: At certain points in the lifetime of an element, it may
- * need to be copied. The copy should include a copy of the
- * client-allocated data, which can be copied into the 'to'
- * element from the 'from' element.
- *
* @elt_free: When a tracing_map_elt is freed, this function is called
* and allows client-allocated per-element data to be freed.
*
@@ -233,8 +228,6 @@ struct tracing_map {
*/
struct tracing_map_ops {
int (*elt_alloc)(struct tracing_map_elt *elt);
- void (*elt_copy)(struct tracing_map_elt *to,
- struct tracing_map_elt *from);
void (*elt_free)(struct tracing_map_elt *elt);
void (*elt_clear)(struct tracing_map_elt *elt);
void (*elt_init)(struct tracing_map_elt *elt);