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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 15:51:28 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 15:51:28 -0700 |
commit | fefa636d815975b34afc45f50852a2810fb23ba9 (patch) | |
tree | 5a48fc557bfc2237fbf6dae3a2c929b991315f87 /include/linux/page_ref.h | |
parent | 2d0f6b0aab9afbd6fdf3514cb4acc249d7aebf9c (diff) | |
parent | 6107742d15832011cd0396d821f3225b52551f1f (diff) | |
download | linux-fefa636d815975b34afc45f50852a2810fb23ba9.tar.gz linux-fefa636d815975b34afc45f50852a2810fb23ba9.tar.bz2 linux-fefa636d815975b34afc45f50852a2810fb23ba9.zip |
Merge tag 'trace-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"Updates for tracing and bootconfig:
- Add support for "bool" type in synthetic events
- Add per instance tracing for bootconfig
- Support perf-style return probe ("SYMBOL%return") in kprobes and
uprobes
- Allow for kprobes to be enabled earlier in boot up
- Added tracepoint helper function to allow testing if tracepoints
are enabled in headers
- Synthetic events can now have dynamic strings (variable length)
- Various fixes and cleanups"
* tag 'trace-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (58 commits)
tracing: support "bool" type in synthetic trace events
selftests/ftrace: Add test case for synthetic event syntax errors
tracing: Handle synthetic event array field type checking correctly
selftests/ftrace: Change synthetic event name for inter-event-combined test
tracing: Add synthetic event error logging
tracing: Check that the synthetic event and field names are legal
tracing: Move is_good_name() from trace_probe.h to trace.h
tracing: Don't show dynamic string internals in synthetic event description
tracing: Fix some typos in comments
tracing/boot: Add ftrace.instance.*.alloc_snapshot option
tracing: Fix race in trace_open and buffer resize call
tracing: Check return value of __create_val_fields() before using its result
tracing: Fix synthetic print fmt check for use of __get_str()
tracing: Remove a pointless assignment
ftrace: ftrace_global_list is renamed to ftrace_ops_list
ftrace: Format variable declarations of ftrace_allocate_records
ftrace: Simplify the calculation of page number for ftrace_page->records
ftrace: Simplify the dyn_ftrace->flags macro
ftrace: Simplify the hash calculation
ftrace: Use fls() to get the bits for dup_hash()
...
Diffstat (limited to 'include/linux/page_ref.h')
-rw-r--r-- | include/linux/page_ref.h | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/include/linux/page_ref.h b/include/linux/page_ref.h index d27701199a4d..f3318f34fc54 100644 --- a/include/linux/page_ref.h +++ b/include/linux/page_ref.h @@ -7,13 +7,13 @@ #include <linux/page-flags.h> #include <linux/tracepoint-defs.h> -extern struct tracepoint __tracepoint_page_ref_set; -extern struct tracepoint __tracepoint_page_ref_mod; -extern struct tracepoint __tracepoint_page_ref_mod_and_test; -extern struct tracepoint __tracepoint_page_ref_mod_and_return; -extern struct tracepoint __tracepoint_page_ref_mod_unless; -extern struct tracepoint __tracepoint_page_ref_freeze; -extern struct tracepoint __tracepoint_page_ref_unfreeze; +DECLARE_TRACEPOINT(page_ref_set); +DECLARE_TRACEPOINT(page_ref_mod); +DECLARE_TRACEPOINT(page_ref_mod_and_test); +DECLARE_TRACEPOINT(page_ref_mod_and_return); +DECLARE_TRACEPOINT(page_ref_mod_unless); +DECLARE_TRACEPOINT(page_ref_freeze); +DECLARE_TRACEPOINT(page_ref_unfreeze); #ifdef CONFIG_DEBUG_PAGE_REF @@ -24,7 +24,7 @@ extern struct tracepoint __tracepoint_page_ref_unfreeze; * * See trace_##name##_enabled(void) in include/linux/tracepoint.h */ -#define page_ref_tracepoint_active(t) static_key_false(&(t).key) +#define page_ref_tracepoint_active(t) tracepoint_enabled(t) extern void __page_ref_set(struct page *page, int v); extern void __page_ref_mod(struct page *page, int v); @@ -75,7 +75,7 @@ static inline int page_count(struct page *page) static inline void set_page_count(struct page *page, int v) { atomic_set(&page->_refcount, v); - if (page_ref_tracepoint_active(__tracepoint_page_ref_set)) + if (page_ref_tracepoint_active(page_ref_set)) __page_ref_set(page, v); } @@ -91,14 +91,14 @@ static inline void init_page_count(struct page *page) static inline void page_ref_add(struct page *page, int nr) { atomic_add(nr, &page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod)) + if (page_ref_tracepoint_active(page_ref_mod)) __page_ref_mod(page, nr); } static inline void page_ref_sub(struct page *page, int nr) { atomic_sub(nr, &page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod)) + if (page_ref_tracepoint_active(page_ref_mod)) __page_ref_mod(page, -nr); } @@ -106,7 +106,7 @@ static inline int page_ref_sub_return(struct page *page, int nr) { int ret = atomic_sub_return(nr, &page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod_and_return)) + if (page_ref_tracepoint_active(page_ref_mod_and_return)) __page_ref_mod_and_return(page, -nr, ret); return ret; } @@ -114,14 +114,14 @@ static inline int page_ref_sub_return(struct page *page, int nr) static inline void page_ref_inc(struct page *page) { atomic_inc(&page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod)) + if (page_ref_tracepoint_active(page_ref_mod)) __page_ref_mod(page, 1); } static inline void page_ref_dec(struct page *page) { atomic_dec(&page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod)) + if (page_ref_tracepoint_active(page_ref_mod)) __page_ref_mod(page, -1); } @@ -129,7 +129,7 @@ static inline int page_ref_sub_and_test(struct page *page, int nr) { int ret = atomic_sub_and_test(nr, &page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod_and_test)) + if (page_ref_tracepoint_active(page_ref_mod_and_test)) __page_ref_mod_and_test(page, -nr, ret); return ret; } @@ -138,7 +138,7 @@ static inline int page_ref_inc_return(struct page *page) { int ret = atomic_inc_return(&page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod_and_return)) + if (page_ref_tracepoint_active(page_ref_mod_and_return)) __page_ref_mod_and_return(page, 1, ret); return ret; } @@ -147,7 +147,7 @@ static inline int page_ref_dec_and_test(struct page *page) { int ret = atomic_dec_and_test(&page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod_and_test)) + if (page_ref_tracepoint_active(page_ref_mod_and_test)) __page_ref_mod_and_test(page, -1, ret); return ret; } @@ -156,7 +156,7 @@ static inline int page_ref_dec_return(struct page *page) { int ret = atomic_dec_return(&page->_refcount); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod_and_return)) + if (page_ref_tracepoint_active(page_ref_mod_and_return)) __page_ref_mod_and_return(page, -1, ret); return ret; } @@ -165,7 +165,7 @@ static inline int page_ref_add_unless(struct page *page, int nr, int u) { int ret = atomic_add_unless(&page->_refcount, nr, u); - if (page_ref_tracepoint_active(__tracepoint_page_ref_mod_unless)) + if (page_ref_tracepoint_active(page_ref_mod_unless)) __page_ref_mod_unless(page, nr, ret); return ret; } @@ -174,7 +174,7 @@ static inline int page_ref_freeze(struct page *page, int count) { int ret = likely(atomic_cmpxchg(&page->_refcount, count, 0) == count); - if (page_ref_tracepoint_active(__tracepoint_page_ref_freeze)) + if (page_ref_tracepoint_active(page_ref_freeze)) __page_ref_freeze(page, count, ret); return ret; } @@ -185,7 +185,7 @@ static inline void page_ref_unfreeze(struct page *page, int count) VM_BUG_ON(count == 0); atomic_set_release(&page->_refcount, count); - if (page_ref_tracepoint_active(__tracepoint_page_ref_unfreeze)) + if (page_ref_tracepoint_active(page_ref_unfreeze)) __page_ref_unfreeze(page, count); } |