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-rw-r--r--target/linux/generic/backport-5.15/600-v5.18-page_pool-Add-allocation-stats.patch56
1 files changed, 31 insertions, 25 deletions
diff --git a/target/linux/generic/backport-5.15/600-v5.18-page_pool-Add-allocation-stats.patch b/target/linux/generic/backport-5.15/600-v5.18-page_pool-Add-allocation-stats.patch
index 7b97181403..3dbfb7ccba 100644
--- a/target/linux/generic/backport-5.15/600-v5.18-page_pool-Add-allocation-stats.patch
+++ b/target/linux/generic/backport-5.15/600-v5.18-page_pool-Add-allocation-stats.patch
@@ -1,30 +1,36 @@
-commit 8610037e8106b48c79cfe0afb92b2b2466e51c3d
-Author: Joe Damato <jdamato@fastly.com>
-Date: Tue Mar 1 23:55:47 2022 -0800
+From 8610037e8106b48c79cfe0afb92b2b2466e51c3d Mon Sep 17 00:00:00 2001
+From: Joe Damato <jdamato@fastly.com>
+Date: Tue, 1 Mar 2022 23:55:47 -0800
+Subject: [PATCH] page_pool: Add allocation stats
- page_pool: Add allocation stats
-
- Add per-pool statistics counters for the allocation path of a page pool.
- These stats are incremented in softirq context, so no locking or per-cpu
- variables are needed.
-
- This code is disabled by default and a kernel config option is provided for
- users who wish to enable them.
-
- The statistics added are:
- - fast: successful fast path allocations
- - slow: slow path order-0 allocations
- - slow_high_order: slow path high order allocations
- - empty: ptr ring is empty, so a slow path allocation was forced.
- - refill: an allocation which triggered a refill of the cache
- - waive: pages obtained from the ptr ring that cannot be added to
- the cache due to a NUMA mismatch.
-
- Signed-off-by: Joe Damato <jdamato@fastly.com>
- Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
- Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
- Signed-off-by: David S. Miller <davem@davemloft.net>
+Add per-pool statistics counters for the allocation path of a page pool.
+These stats are incremented in softirq context, so no locking or per-cpu
+variables are needed.
+This code is disabled by default and a kernel config option is provided for
+users who wish to enable them.
+
+The statistics added are:
+ - fast: successful fast path allocations
+ - slow: slow path order-0 allocations
+ - slow_high_order: slow path high order allocations
+ - empty: ptr ring is empty, so a slow path allocation was forced.
+ - refill: an allocation which triggered a refill of the cache
+ - waive: pages obtained from the ptr ring that cannot be added to
+ the cache due to a NUMA mismatch.
+
+Signed-off-by: Joe Damato <jdamato@fastly.com>
+Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
+Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ include/net/page_pool.h | 18 ++++++++++++++++++
+ net/Kconfig | 13 +++++++++++++
+ net/core/page_pool.c | 24 ++++++++++++++++++++----
+ 3 files changed, 51 insertions(+), 4 deletions(-)
+
+diff --git a/include/net/page_pool.h b/include/net/page_pool.h
+index 97c3c19872ff..1f27e8a48830 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -82,6 +82,19 @@ struct page_pool_params {