kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Three minor updates

Browse source 
- Use of the new GFP_RETRY_MAYFAIL to be more aggressive in allocating
    memory for the ring buffer without causing OOMs
 
  - Fix a memory leak in adding and removing instances
 
  - Add __rcu annotation to be able to debug RCU usage of function
    tracing a bit better.
 -----BEGIN PGP SIGNATURE-----
 
 iQExBAABCAAbBQJZcf52FBxyb3N0ZWR0QGdvb2RtaXMub3JnAAoJEMm5BfJq2Y3L
 Vg4H/0DxsgqsGehOhbIu/W6JLJo+q+jNUbfFfvpIDvraZ8z7bC+6SORdgMEV7uXt
 EMISWnzy9Wv9E361ZLgUaODwbimnqdUeFYzE4f4ggE1+eFhZKAY5Lo0UDcctwNoq
 /kcOPr51aW8+Tzdu6UtymVsnXykuJo3mIPGFzsKQju8ykcl/dXIdiFAMvVmiNxsG
 /Rv9yGhYDYm61pj3JyP9pgICYTI/7jtatKhoVZBxI/ji0hWNAnZfF89k0VeU9vpY
 xsK/d9n84o+kPsuh8hIMVKUUPRoeamDuxpMa+Rf37Vm6aQyzNIXDtNdo3mdfocpg
 uXLxNxYcmDmRXawR5EkF2cCGIl0=
 =FjNl
 -----END PGP SIGNATURE-----

Merge tag 'trace-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Three minor updates

   - Use the new GFP_RETRY_MAYFAIL to be more aggressive in allocating
     memory for the ring buffer without causing OOMs

   - Fix a memory leak in adding and removing instances

   - Add __rcu annotation to be able to debug RCU usage of function
     tracing a bit better"

* tag 'trace-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  trace: fix the errors caused by incompatible type of RCU variables
  tracing: Fix kmemleak in instance_rmdir
  tracing/ring_buffer: Try harder to allocate
This commit is contained in:
Linus Torvalds 2017-07-21 13:59:51 -07:00
commit f79ec886f9
6 changed files with 40 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/linux/ftrace.h
View file

@ -145,8 +145,8 @@ enum {
#ifdef CONFIG_DYNAMIC_FTRACE
/* The hash used to know what functions callbacks trace */
struct ftrace_ops_hash {
struct ftrace_hash *notrace_hash;
struct ftrace_hash *filter_hash;
struct ftrace_hash __rcu *notrace_hash;
struct ftrace_hash __rcu *filter_hash;
struct mutex regex_lock;
};
@ -168,7 +168,7 @@ static inline void ftrace_free_init_mem(void) { }
*/
struct ftrace_ops {
ftrace_func_t func;
struct ftrace_ops *next;
struct ftrace_ops __rcu *next;
unsigned long flags;
void *private;
ftrace_func_t saved_func;

2
include/linux/trace_events.h
View file

@ -338,7 +338,7 @@ enum {
struct trace_event_file {
struct list_head list;
struct trace_event_call *event_call;
struct event_filter *filter;
struct event_filter __rcu *filter;
struct dentry *dir;
struct trace_array *tr;
struct trace_subsystem_dir *system;