diff mbox series

[net-next,v3,02/10] page_pool: Add per-cpu page_pool_stats struct

Message ID 1643764336-63864-3-git-send-email-jdamato@fastly.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series page_pool: Add page_pool stat counters | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 5979 this patch: 5979
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 879 this patch: 879
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 6130 this patch: 6130
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 27 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Joe Damato Feb. 2, 2022, 1:12 a.m. UTC 
A per-cpu (empty) page_pool_stats struct has been added as a place holder.

Signed-off-by: Joe Damato <jdamato@fastly.com>
---
 include/net/page_pool.h | 10 ++++++++++
 net/core/page_pool.c    |  5 +++++
 2 files changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index 79a8055..dae65f2 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -137,6 +137,16 @@  struct page_pool {
 	u64 destroy_cnt;
 };
 
+#ifdef CONFIG_PAGE_POOL_STATS
+/*
+ * stats for tracking page_pool events.
+ */
+struct page_pool_stats {
+};
+
+DECLARE_PER_CPU_ALIGNED(struct page_pool_stats, page_pool_stats);
+#endif
+
 struct page *page_pool_alloc_pages(struct page_pool *pool, gfp_t gfp);
 
 static inline struct page *page_pool_dev_alloc_pages(struct page_pool *pool)
diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index bd62c01..7e33590 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -26,6 +26,11 @@ 
 
 #define BIAS_MAX	LONG_MAX
 
+#ifdef CONFIG_PAGE_POOL_STATS
+DEFINE_PER_CPU_ALIGNED(struct page_pool_stats, page_pool_stats);
+EXPORT_PER_CPU_SYMBOL(page_pool_stats);
+#endif
+
 static int page_pool_init(struct page_pool *pool,
 			  const struct page_pool_params *params)
 {