diff options
Diffstat (limited to 'meta/recipes-kernel/lttng/lttng-modules/0009-fix-tracepoint-Optimize-using-static_call-v5.10.patch')
| -rw-r--r-- | meta/recipes-kernel/lttng/lttng-modules/0009-fix-tracepoint-Optimize-using-static_call-v5.10.patch | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/meta/recipes-kernel/lttng/lttng-modules/0009-fix-tracepoint-Optimize-using-static_call-v5.10.patch b/meta/recipes-kernel/lttng/lttng-modules/0009-fix-tracepoint-Optimize-using-static_call-v5.10.patch deleted file mode 100644 index b942aa5c95..0000000000 --- a/meta/recipes-kernel/lttng/lttng-modules/0009-fix-tracepoint-Optimize-using-static_call-v5.10.patch +++ /dev/null @@ -1,155 +0,0 @@ -From c6b31b349fe901a8f586a66064f9e9b15449ac1c Mon Sep 17 00:00:00 2001 -From: Michael Jeanson <mjeanson@efficios.com> -Date: Mon, 26 Oct 2020 17:09:05 -0400 -Subject: [PATCH 09/16] fix: tracepoint: Optimize using static_call() (v5.10) - -See upstream commit : - - commit d25e37d89dd2f41d7acae0429039d2f0ae8b4a07 - Author: Steven Rostedt (VMware) <rostedt@goodmis.org> - Date: Tue Aug 18 15:57:52 2020 +0200 - - tracepoint: Optimize using static_call() - - Currently the tracepoint site will iterate a vector and issue indirect - calls to however many handlers are registered (ie. the vector is - long). - - Using static_call() it is possible to optimize this for the common - case of only having a single handler registered. In this case the - static_call() can directly call this handler. Otherwise, if the vector - is longer than 1, call a function that iterates the whole vector like - the current code. - -Upstream-Status: Backport - -Change-Id: I739dd84d62cc1a821b8bd8acff74fa29aa25d22f -Signed-off-by: Michael Jeanson <mjeanson@efficios.com> -Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> ---- - lttng-statedump-impl.c | 44 ++++++++++++++++++++++++++++++++------- - probes/lttng.c | 7 +++++-- - tests/probes/lttng-test.c | 7 ++++++- - wrapper/tracepoint.h | 8 +++++++ - 4 files changed, 56 insertions(+), 10 deletions(-) - -diff --git a/lttng-statedump-impl.c b/lttng-statedump-impl.c -index 54a309d1..e0b19b42 100644 ---- a/lttng-statedump-impl.c -+++ b/lttng-statedump-impl.c -@@ -55,13 +55,43 @@ - #define LTTNG_INSTRUMENTATION - #include <instrumentation/events/lttng-module/lttng-statedump.h> - --DEFINE_TRACE(lttng_statedump_block_device); --DEFINE_TRACE(lttng_statedump_end); --DEFINE_TRACE(lttng_statedump_interrupt); --DEFINE_TRACE(lttng_statedump_file_descriptor); --DEFINE_TRACE(lttng_statedump_start); --DEFINE_TRACE(lttng_statedump_process_state); --DEFINE_TRACE(lttng_statedump_network_interface); -+LTTNG_DEFINE_TRACE(lttng_statedump_block_device, -+ TP_PROTO(struct lttng_session *session, -+ dev_t dev, const char *diskname), -+ TP_ARGS(session, dev, diskname)); -+ -+LTTNG_DEFINE_TRACE(lttng_statedump_end, -+ TP_PROTO(struct lttng_session *session), -+ TP_ARGS(session)); -+ -+LTTNG_DEFINE_TRACE(lttng_statedump_interrupt, -+ TP_PROTO(struct lttng_session *session, -+ unsigned int irq, const char *chip_name, -+ struct irqaction *action), -+ TP_ARGS(session, irq, chip_name, action)); -+ -+LTTNG_DEFINE_TRACE(lttng_statedump_file_descriptor, -+ TP_PROTO(struct lttng_session *session, -+ struct files_struct *files, -+ int fd, const char *filename, -+ unsigned int flags, fmode_t fmode), -+ TP_ARGS(session, files, fd, filename, flags, fmode)); -+ -+LTTNG_DEFINE_TRACE(lttng_statedump_start, -+ TP_PROTO(struct lttng_session *session), -+ TP_ARGS(session)); -+ -+LTTNG_DEFINE_TRACE(lttng_statedump_process_state, -+ TP_PROTO(struct lttng_session *session, -+ struct task_struct *p, -+ int type, int mode, int submode, int status, -+ struct files_struct *files), -+ TP_ARGS(session, p, type, mode, submode, status, files)); -+ -+LTTNG_DEFINE_TRACE(lttng_statedump_network_interface, -+ TP_PROTO(struct lttng_session *session, -+ struct net_device *dev, struct in_ifaddr *ifa), -+ TP_ARGS(session, dev, ifa)); - - struct lttng_fd_ctx { - char *page; -diff --git a/probes/lttng.c b/probes/lttng.c -index 05bc1388..7ddaa69f 100644 ---- a/probes/lttng.c -+++ b/probes/lttng.c -@@ -8,7 +8,7 @@ - */ - - #include <linux/module.h> --#include <linux/tracepoint.h> -+#include <wrapper/tracepoint.h> - #include <linux/uaccess.h> - #include <linux/gfp.h> - #include <linux/fs.h> -@@ -32,7 +32,10 @@ - #define LTTNG_LOGGER_COUNT_MAX 1024 - #define LTTNG_LOGGER_FILE "lttng-logger" - --DEFINE_TRACE(lttng_logger); -+LTTNG_DEFINE_TRACE(lttng_logger, -+ PARAMS(const char __user *text, size_t len), -+ PARAMS(text, len) -+); - - static struct proc_dir_entry *lttng_logger_dentry; - -diff --git a/tests/probes/lttng-test.c b/tests/probes/lttng-test.c -index c728bed5..8f2d3feb 100644 ---- a/tests/probes/lttng-test.c -+++ b/tests/probes/lttng-test.c -@@ -26,7 +26,12 @@ - #define LTTNG_INSTRUMENTATION - #include <instrumentation/events/lttng-module/lttng-test.h> - --DEFINE_TRACE(lttng_test_filter_event); -+LTTNG_DEFINE_TRACE(lttng_test_filter_event, -+ PARAMS(int anint, int netint, long *values, -+ char *text, size_t textlen, -+ char *etext, uint32_t * net_values), -+ PARAMS(anint, netint, values, text, textlen, etext, net_values) -+); - - #define LTTNG_TEST_FILTER_EVENT_FILE "lttng-test-filter-event" - -diff --git a/wrapper/tracepoint.h b/wrapper/tracepoint.h -index 3883e11a..758038b6 100644 ---- a/wrapper/tracepoint.h -+++ b/wrapper/tracepoint.h -@@ -20,6 +20,14 @@ - - #endif - -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0)) -+#define LTTNG_DEFINE_TRACE(name, proto, args) \ -+ DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) -+#else -+#define LTTNG_DEFINE_TRACE(name, proto, args) \ -+ DEFINE_TRACE(name) -+#endif -+ - #ifndef HAVE_KABI_2635_TRACEPOINT - - #define kabi_2635_tracepoint_probe_register tracepoint_probe_register --- -2.25.1 - |