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authorJakub Kicinski <kuba@kernel.org>2023-02-03 01:49:55 +0300
committerJakub Kicinski <kuba@kernel.org>2023-02-03 01:49:55 +0300
commit82b4a9412b4de2f68679f1403f1d229390ace27e (patch)
tree920454da3f6d509be95ae3c5c72921bfddc39c20 /scripts
parentb18ea3d9d214dfb23b0b6bd2acc121cb0d0fa2c5 (diff)
parentedb9b8f380c3413bf783475279b1a941c7e5cec1 (diff)
downloadlinux-82b4a9412b4de2f68679f1403f1d229390ace27e.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
net/core/gro.c 7d2c89b32587 ("skb: Do mix page pool and page referenced frags in GRO") b1a78b9b9886 ("net: add support for ipv4 big tcp") https://lore.kernel.org/all/20230203094454.5766f160@canb.auug.org.au/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'scripts')
-rw-r--r--[-rwxr-xr-x]scripts/atomic/atomics.tbl0
-rw-r--r--scripts/gcc-plugins/gcc-common.h4
-rwxr-xr-xscripts/tracing/ftrace-bisect.sh34
3 files changed, 28 insertions, 10 deletions
diff --git a/scripts/atomic/atomics.tbl b/scripts/atomic/atomics.tbl
index fbee2f6190d9..fbee2f6190d9 100755..100644
--- a/scripts/atomic/atomics.tbl
+++ b/scripts/atomic/atomics.tbl
diff --git a/scripts/gcc-plugins/gcc-common.h b/scripts/gcc-plugins/gcc-common.h
index 9a1895747b15..84c730da36dd 100644
--- a/scripts/gcc-plugins/gcc-common.h
+++ b/scripts/gcc-plugins/gcc-common.h
@@ -71,7 +71,9 @@
#include "varasm.h"
#include "stor-layout.h"
#include "internal-fn.h"
+#include "gimple.h"
#include "gimple-expr.h"
+#include "gimple-iterator.h"
#include "gimple-fold.h"
#include "context.h"
#include "tree-ssa-alias.h"
@@ -85,10 +87,8 @@
#include "tree-eh.h"
#include "stmt.h"
#include "gimplify.h"
-#include "gimple.h"
#include "tree-phinodes.h"
#include "tree-cfg.h"
-#include "gimple-iterator.h"
#include "gimple-ssa.h"
#include "ssa-iterators.h"
diff --git a/scripts/tracing/ftrace-bisect.sh b/scripts/tracing/ftrace-bisect.sh
index 926701162bc8..bb4f59262bbe 100755
--- a/scripts/tracing/ftrace-bisect.sh
+++ b/scripts/tracing/ftrace-bisect.sh
@@ -12,7 +12,7 @@
# (note, if this is a problem with function_graph tracing, then simply
# replace "function" with "function_graph" in the following steps).
#
-# # cd /sys/kernel/debug/tracing
+# # cd /sys/kernel/tracing
# # echo schedule > set_ftrace_filter
# # echo function > current_tracer
#
@@ -20,22 +20,40 @@
#
# # echo nop > current_tracer
#
-# # cat available_filter_functions > ~/full-file
+# Starting with v5.1 this can be done with numbers, making it much faster:
+#
+# The old (slow) way, for kernels before v5.1.
+#
+# [old-way] # cat available_filter_functions > ~/full-file
+#
+# [old-way] *** Note *** this process will take several minutes to update the
+# [old-way] filters. Setting multiple functions is an O(n^2) operation, and we
+# [old-way] are dealing with thousands of functions. So go have coffee, talk
+# [old-way] with your coworkers, read facebook. And eventually, this operation
+# [old-way] will end.
+#
+# The new way (using numbers) is an O(n) operation, and usually takes less than a second.
+#
+# seq `wc -l available_filter_functions | cut -d' ' -f1` > ~/full-file
+#
+# This will create a sequence of numbers that match the functions in
+# available_filter_functions, and when echoing in a number into the
+# set_ftrace_filter file, it will enable the corresponding function in
+# O(1) time. Making enabling all functions O(n) where n is the number of
+# functions to enable.
+#
+# For either the new or old way, the rest of the operations remain the same.
+#
# # ftrace-bisect ~/full-file ~/test-file ~/non-test-file
# # cat ~/test-file > set_ftrace_filter
#
-# *** Note *** this will take several minutes. Setting multiple functions is
-# an O(n^2) operation, and we are dealing with thousands of functions. So go
-# have coffee, talk with your coworkers, read facebook. And eventually, this
-# operation will end.
-#
# # echo function > current_tracer
#
# If it crashes, we know that ~/test-file has a bad function.
#
# Reboot back to test kernel.
#
-# # cd /sys/kernel/debug/tracing
+# # cd /sys/kernel/tracing
# # mv ~/test-file ~/full-file
#
# If it didn't crash.