diff options
Diffstat (limited to 'poky/meta/recipes-kernel/lttng/lttng-modules/0001-Update-for-kernel-5.7-use-vmalloc_sync_mappings-on-k.patch')
-rw-r--r-- | poky/meta/recipes-kernel/lttng/lttng-modules/0001-Update-for-kernel-5.7-use-vmalloc_sync_mappings-on-k.patch | 853 |
1 files changed, 0 insertions, 853 deletions
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0001-Update-for-kernel-5.7-use-vmalloc_sync_mappings-on-k.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0001-Update-for-kernel-5.7-use-vmalloc_sync_mappings-on-k.patch deleted file mode 100644 index 58f4d2919..000000000 --- a/poky/meta/recipes-kernel/lttng/lttng-modules/0001-Update-for-kernel-5.7-use-vmalloc_sync_mappings-on-k.patch +++ /dev/null @@ -1,853 +0,0 @@ -From a2cc0e06330e55eefe668f7d6370de6d3177a907 Mon Sep 17 00:00:00 2001 -From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> -Date: Tue, 5 May 2020 13:38:31 -0400 -Subject: [PATCH] Update for kernel 5.7: use vmalloc_sync_mappings on kernels - >= 5.7 - -Upstream-Status: Backport [https://github.com/lttng/lttng-modules/commit/da0fcb1497ff2437407883647a8a0bba12bd0f91] - -Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> -Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> ---- - lib/ringbuffer/ring_buffer_backend.c | 4 +-- - lttng-abi.c | 4 +-- - lttng-context-callstack.c | 2 +- - lttng-context-cgroup-ns.c | 2 +- - lttng-context-cpu-id.c | 2 +- - lttng-context-egid.c | 2 +- - lttng-context-euid.c | 2 +- - lttng-context-gid.c | 2 +- - lttng-context-hostname.c | 2 +- - lttng-context-interruptible.c | 2 +- - lttng-context-ipc-ns.c | 2 +- - lttng-context-migratable.c | 2 +- - lttng-context-mnt-ns.c | 2 +- - lttng-context-need-reschedule.c | 2 +- - lttng-context-net-ns.c | 2 +- - lttng-context-nice.c | 2 +- - lttng-context-perf-counters.c | 2 +- - lttng-context-pid-ns.c | 2 +- - lttng-context-pid.c | 2 +- - lttng-context-ppid.c | 2 +- - lttng-context-preemptible.c | 2 +- - lttng-context-prio.c | 2 +- - lttng-context-procname.c | 2 +- - lttng-context-sgid.c | 2 +- - lttng-context-suid.c | 2 +- - lttng-context-tid.c | 2 +- - lttng-context-uid.c | 2 +- - lttng-context-user-ns.c | 2 +- - lttng-context-uts-ns.c | 2 +- - lttng-context-vegid.c | 2 +- - lttng-context-veuid.c | 2 +- - lttng-context-vgid.c | 2 +- - lttng-context-vpid.c | 2 +- - lttng-context-vppid.c | 2 +- - lttng-context-vsgid.c | 2 +- - lttng-context-vsuid.c | 2 +- - lttng-context-vtid.c | 2 +- - lttng-context-vuid.c | 2 +- - lttng-context.c | 2 +- - lttng-events.c | 10 +++--- - lttng-ring-buffer-client.h | 4 +-- - lttng-ring-buffer-metadata-client.h | 4 +-- - lttng-syscalls.c | 2 +- - probes/lttng-kprobes.c | 2 +- - probes/lttng-kretprobes.c | 2 +- - probes/lttng-tracepoint-event-impl.h | 4 +-- - probes/lttng-uprobes.c | 2 +- - probes/lttng.c | 2 +- - tests/probes/lttng-test.c | 2 +- - wrapper/vmalloc.h | 49 ++++++++++++++++++++++++++-- - 50 files changed, 104 insertions(+), 61 deletions(-) - -diff --git a/lib/ringbuffer/ring_buffer_backend.c b/lib/ringbuffer/ring_buffer_backend.c -index d4bec25..d232b7f 100644 ---- a/lib/ringbuffer/ring_buffer_backend.c -+++ b/lib/ringbuffer/ring_buffer_backend.c -@@ -17,7 +17,7 @@ - #include <linux/vmalloc.h> - - #include <wrapper/mm.h> --#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */ -+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ - #include <wrapper/ringbuffer/config.h> - #include <wrapper/ringbuffer/backend.h> - #include <wrapper/ringbuffer/frontend.h> -@@ -156,7 +156,7 @@ int lib_ring_buffer_backend_allocate(const struct lib_ring_buffer_config *config - * If kmalloc ever uses vmalloc underneath, make sure the buffer pages - * will not fault. - */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - wrapper_clear_current_oom_origin(); - vfree(pages); - return 0; -diff --git a/lttng-abi.c b/lttng-abi.c -index b63e376..826ecab 100644 ---- a/lttng-abi.c -+++ b/lttng-abi.c -@@ -30,7 +30,7 @@ - #include <linux/uaccess.h> - #include <linux/slab.h> - #include <linux/err.h> --#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */ -+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ - #include <wrapper/ringbuffer/vfs.h> - #include <wrapper/ringbuffer/backend.h> - #include <wrapper/ringbuffer/frontend.h> -@@ -1938,7 +1938,7 @@ int __init lttng_abi_init(void) - { - int ret = 0; - -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - lttng_clock_ref(); - - ret = lttng_tp_mempool_init(); -diff --git a/lttng-context-callstack.c b/lttng-context-callstack.c -index 195990a..ba35a39 100644 ---- a/lttng-context-callstack.c -+++ b/lttng-context-callstack.c -@@ -141,7 +141,7 @@ int __lttng_add_callstack_generic(struct lttng_ctx **ctx, - field->record = lttng_callstack_record; - field->priv = fdata; - field->destroy = lttng_callstack_destroy; -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - - error_create: -diff --git a/lttng-context-cgroup-ns.c b/lttng-context-cgroup-ns.c -index 81486e5..f324b7e 100644 ---- a/lttng-context-cgroup-ns.c -+++ b/lttng-context-cgroup-ns.c -@@ -97,7 +97,7 @@ int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx) - field->record = cgroup_ns_record; - field->get_value = cgroup_ns_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_cgroup_ns_to_ctx); -diff --git a/lttng-context-cpu-id.c b/lttng-context-cpu-id.c -index 3778225..6e2f3f4 100644 ---- a/lttng-context-cpu-id.c -+++ b/lttng-context-cpu-id.c -@@ -68,7 +68,7 @@ int lttng_add_cpu_id_to_ctx(struct lttng_ctx **ctx) - field->record = cpu_id_record; - field->get_value = cpu_id_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_cpu_id_to_ctx); -diff --git a/lttng-context-egid.c b/lttng-context-egid.c -index 51536e2..bdcebb9 100644 ---- a/lttng-context-egid.c -+++ b/lttng-context-egid.c -@@ -70,7 +70,7 @@ int lttng_add_egid_to_ctx(struct lttng_ctx **ctx) - field->record = egid_record; - field->get_value = egid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_egid_to_ctx); -diff --git a/lttng-context-euid.c b/lttng-context-euid.c -index 1bcd53f..c2b8dcd 100644 ---- a/lttng-context-euid.c -+++ b/lttng-context-euid.c -@@ -70,7 +70,7 @@ int lttng_add_euid_to_ctx(struct lttng_ctx **ctx) - field->record = euid_record; - field->get_value = euid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_euid_to_ctx); -diff --git a/lttng-context-gid.c b/lttng-context-gid.c -index da54207..c355e8c 100644 ---- a/lttng-context-gid.c -+++ b/lttng-context-gid.c -@@ -70,7 +70,7 @@ int lttng_add_gid_to_ctx(struct lttng_ctx **ctx) - field->record = gid_record; - field->get_value = gid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_gid_to_ctx); -diff --git a/lttng-context-hostname.c b/lttng-context-hostname.c -index e485aa9..17dbd57 100644 ---- a/lttng-context-hostname.c -+++ b/lttng-context-hostname.c -@@ -101,7 +101,7 @@ int lttng_add_hostname_to_ctx(struct lttng_ctx **ctx) - field->record = hostname_record; - field->get_value = hostname_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_hostname_to_ctx); -diff --git a/lttng-context-interruptible.c b/lttng-context-interruptible.c -index f3da199..8bd279a 100644 ---- a/lttng-context-interruptible.c -+++ b/lttng-context-interruptible.c -@@ -75,7 +75,7 @@ int lttng_add_interruptible_to_ctx(struct lttng_ctx **ctx) - field->record = interruptible_record; - field->get_value = interruptible_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_interruptible_to_ctx); -diff --git a/lttng-context-ipc-ns.c b/lttng-context-ipc-ns.c -index 78d5966..40b901b 100644 ---- a/lttng-context-ipc-ns.c -+++ b/lttng-context-ipc-ns.c -@@ -96,7 +96,7 @@ int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx) - field->record = ipc_ns_record; - field->get_value = ipc_ns_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_ipc_ns_to_ctx); -diff --git a/lttng-context-migratable.c b/lttng-context-migratable.c -index e3d8ede..65154b8 100644 ---- a/lttng-context-migratable.c -+++ b/lttng-context-migratable.c -@@ -68,7 +68,7 @@ int lttng_add_migratable_to_ctx(struct lttng_ctx **ctx) - field->record = migratable_record; - field->get_value = migratable_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_migratable_to_ctx); -diff --git a/lttng-context-mnt-ns.c b/lttng-context-mnt-ns.c -index b5bb955..cb59776 100644 ---- a/lttng-context-mnt-ns.c -+++ b/lttng-context-mnt-ns.c -@@ -98,7 +98,7 @@ int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx) - field->record = mnt_ns_record; - field->get_value = mnt_ns_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_mnt_ns_to_ctx); -diff --git a/lttng-context-need-reschedule.c b/lttng-context-need-reschedule.c -index f29fb28..94efaa5 100644 ---- a/lttng-context-need-reschedule.c -+++ b/lttng-context-need-reschedule.c -@@ -68,7 +68,7 @@ int lttng_add_need_reschedule_to_ctx(struct lttng_ctx **ctx) - field->record = need_reschedule_record; - field->get_value = need_reschedule_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_need_reschedule_to_ctx); -diff --git a/lttng-context-net-ns.c b/lttng-context-net-ns.c -index 6694037..37de09f 100644 ---- a/lttng-context-net-ns.c -+++ b/lttng-context-net-ns.c -@@ -97,7 +97,7 @@ int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx) - field->record = net_ns_record; - field->get_value = net_ns_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_net_ns_to_ctx); -diff --git a/lttng-context-nice.c b/lttng-context-nice.c -index 563e805..acaba85 100644 ---- a/lttng-context-nice.c -+++ b/lttng-context-nice.c -@@ -68,7 +68,7 @@ int lttng_add_nice_to_ctx(struct lttng_ctx **ctx) - field->record = nice_record; - field->get_value = nice_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_nice_to_ctx); -diff --git a/lttng-context-perf-counters.c b/lttng-context-perf-counters.c -index 43c4077..6b04d12 100644 ---- a/lttng-context-perf-counters.c -+++ b/lttng-context-perf-counters.c -@@ -321,7 +321,7 @@ int lttng_add_perf_counter_to_ctx(uint32_t type, - field->u.perf_counter = perf_field; - lttng_context_update(*ctx); - -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - - #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) -diff --git a/lttng-context-pid-ns.c b/lttng-context-pid-ns.c -index f039f26..ccf629d 100644 ---- a/lttng-context-pid-ns.c -+++ b/lttng-context-pid-ns.c -@@ -98,7 +98,7 @@ int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx) - field->record = pid_ns_record; - field->get_value = pid_ns_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_pid_ns_to_ctx); -diff --git a/lttng-context-pid.c b/lttng-context-pid.c -index b3caabb..326eabe 100644 ---- a/lttng-context-pid.c -+++ b/lttng-context-pid.c -@@ -68,7 +68,7 @@ int lttng_add_pid_to_ctx(struct lttng_ctx **ctx) - field->record = pid_record; - field->get_value = pid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_pid_to_ctx); -diff --git a/lttng-context-ppid.c b/lttng-context-ppid.c -index ef84ad1..ff25288 100644 ---- a/lttng-context-ppid.c -+++ b/lttng-context-ppid.c -@@ -90,7 +90,7 @@ int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx) - field->record = ppid_record; - field->get_value = ppid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_ppid_to_ctx); -diff --git a/lttng-context-preemptible.c b/lttng-context-preemptible.c -index 328f2a4..867805b 100644 ---- a/lttng-context-preemptible.c -+++ b/lttng-context-preemptible.c -@@ -86,7 +86,7 @@ int lttng_add_preemptible_to_ctx(struct lttng_ctx **ctx) - field->record = preemptible_record; - field->get_value = preemptible_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_preemptible_to_ctx); -diff --git a/lttng-context-prio.c b/lttng-context-prio.c -index b5d21e7..367f7bd 100644 ---- a/lttng-context-prio.c -+++ b/lttng-context-prio.c -@@ -89,7 +89,7 @@ int lttng_add_prio_to_ctx(struct lttng_ctx **ctx) - field->record = prio_record; - field->get_value = prio_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_prio_to_ctx); -diff --git a/lttng-context-procname.c b/lttng-context-procname.c -index 54007d1..8f18ca2 100644 ---- a/lttng-context-procname.c -+++ b/lttng-context-procname.c -@@ -72,7 +72,7 @@ int lttng_add_procname_to_ctx(struct lttng_ctx **ctx) - field->record = procname_record; - field->get_value = procname_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_procname_to_ctx); -diff --git a/lttng-context-sgid.c b/lttng-context-sgid.c -index 61c8d53..2a58cbd 100644 ---- a/lttng-context-sgid.c -+++ b/lttng-context-sgid.c -@@ -70,7 +70,7 @@ int lttng_add_sgid_to_ctx(struct lttng_ctx **ctx) - field->record = sgid_record; - field->get_value = sgid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_sgid_to_ctx); -diff --git a/lttng-context-suid.c b/lttng-context-suid.c -index 66d3ef5..ab3e2a9 100644 ---- a/lttng-context-suid.c -+++ b/lttng-context-suid.c -@@ -70,7 +70,7 @@ int lttng_add_suid_to_ctx(struct lttng_ctx **ctx) - field->record = suid_record; - field->get_value = suid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_suid_to_ctx); -diff --git a/lttng-context-tid.c b/lttng-context-tid.c -index d2a20e6..f6defc4 100644 ---- a/lttng-context-tid.c -+++ b/lttng-context-tid.c -@@ -71,7 +71,7 @@ int lttng_add_tid_to_ctx(struct lttng_ctx **ctx) - field->record = tid_record; - field->get_value = tid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_tid_to_ctx); -diff --git a/lttng-context-uid.c b/lttng-context-uid.c -index 5f11de2..5593852 100644 ---- a/lttng-context-uid.c -+++ b/lttng-context-uid.c -@@ -70,7 +70,7 @@ int lttng_add_uid_to_ctx(struct lttng_ctx **ctx) - field->record = uid_record; - field->get_value = uid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_uid_to_ctx); -diff --git a/lttng-context-user-ns.c b/lttng-context-user-ns.c -index 746e4d9..0ed62e3 100644 ---- a/lttng-context-user-ns.c -+++ b/lttng-context-user-ns.c -@@ -82,7 +82,7 @@ int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx) - field->record = user_ns_record; - field->get_value = user_ns_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_user_ns_to_ctx); -diff --git a/lttng-context-uts-ns.c b/lttng-context-uts-ns.c -index 7352a3d..283bc73 100644 ---- a/lttng-context-uts-ns.c -+++ b/lttng-context-uts-ns.c -@@ -96,7 +96,7 @@ int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx) - field->record = uts_ns_record; - field->get_value = uts_ns_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_uts_ns_to_ctx); -diff --git a/lttng-context-vegid.c b/lttng-context-vegid.c -index 604da2a..1431dac 100644 ---- a/lttng-context-vegid.c -+++ b/lttng-context-vegid.c -@@ -70,7 +70,7 @@ int lttng_add_vegid_to_ctx(struct lttng_ctx **ctx) - field->record = vegid_record; - field->get_value = vegid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vegid_to_ctx); -diff --git a/lttng-context-veuid.c b/lttng-context-veuid.c -index 983ae6a..a1b5b70 100644 ---- a/lttng-context-veuid.c -+++ b/lttng-context-veuid.c -@@ -70,7 +70,7 @@ int lttng_add_veuid_to_ctx(struct lttng_ctx **ctx) - field->record = veuid_record; - field->get_value = veuid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_veuid_to_ctx); -diff --git a/lttng-context-vgid.c b/lttng-context-vgid.c -index e08c77d..0eed24e 100644 ---- a/lttng-context-vgid.c -+++ b/lttng-context-vgid.c -@@ -70,7 +70,7 @@ int lttng_add_vgid_to_ctx(struct lttng_ctx **ctx) - field->record = vgid_record; - field->get_value = vgid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vgid_to_ctx); -diff --git a/lttng-context-vpid.c b/lttng-context-vpid.c -index 982ce55..b5b6ce0 100644 ---- a/lttng-context-vpid.c -+++ b/lttng-context-vpid.c -@@ -83,7 +83,7 @@ int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx) - field->record = vpid_record; - field->get_value = vpid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vpid_to_ctx); -diff --git a/lttng-context-vppid.c b/lttng-context-vppid.c -index 66d6382..347ac63 100644 ---- a/lttng-context-vppid.c -+++ b/lttng-context-vppid.c -@@ -112,7 +112,7 @@ int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx) - field->record = vppid_record; - field->get_value = vppid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vppid_to_ctx); -diff --git a/lttng-context-vsgid.c b/lttng-context-vsgid.c -index aca5eda..3daf889 100644 ---- a/lttng-context-vsgid.c -+++ b/lttng-context-vsgid.c -@@ -70,7 +70,7 @@ int lttng_add_vsgid_to_ctx(struct lttng_ctx **ctx) - field->record = vsgid_record; - field->get_value = vsgid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vsgid_to_ctx); -diff --git a/lttng-context-vsuid.c b/lttng-context-vsuid.c -index 66c1300..d7fb0db 100644 ---- a/lttng-context-vsuid.c -+++ b/lttng-context-vsuid.c -@@ -70,7 +70,7 @@ int lttng_add_vsuid_to_ctx(struct lttng_ctx **ctx) - field->record = vsuid_record; - field->get_value = vsuid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vsuid_to_ctx); -diff --git a/lttng-context-vtid.c b/lttng-context-vtid.c -index 8fd68a8..e81ba0e 100644 ---- a/lttng-context-vtid.c -+++ b/lttng-context-vtid.c -@@ -83,7 +83,7 @@ int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx) - field->record = vtid_record; - field->get_value = vtid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vtid_to_ctx); -diff --git a/lttng-context-vuid.c b/lttng-context-vuid.c -index 6ae575f..33e22d3 100644 ---- a/lttng-context-vuid.c -+++ b/lttng-context-vuid.c -@@ -70,7 +70,7 @@ int lttng_add_vuid_to_ctx(struct lttng_ctx **ctx) - field->record = vuid_record; - field->get_value = vuid_get_value; - lttng_context_update(*ctx); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return 0; - } - EXPORT_SYMBOL_GPL(lttng_add_vuid_to_ctx); -diff --git a/lttng-context.c b/lttng-context.c -index eb4534c..a6d4ee6 100644 ---- a/lttng-context.c -+++ b/lttng-context.c -@@ -11,7 +11,7 @@ - #include <linux/list.h> - #include <linux/mutex.h> - #include <linux/slab.h> --#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */ -+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ - #include <lttng-events.h> - #include <lttng-tracer.h> - -diff --git a/lttng-events.c b/lttng-events.c -index a1c8445..401f646 100644 ---- a/lttng-events.c -+++ b/lttng-events.c -@@ -30,7 +30,7 @@ - #include <linux/uuid.h> - #include <linux/dmi.h> - --#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */ -+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ - #include <wrapper/random.h> - #include <wrapper/tracepoint.h> - #include <wrapper/list.h> -@@ -2753,9 +2753,9 @@ end: - * Registers a transport which can be used as output to extract the data out of - * LTTng. The module calling this registration function must ensure that no - * trap-inducing code will be executed by the transport functions. E.g. -- * vmalloc_sync_all() must be called between a vmalloc and the moment the memory -+ * vmalloc_sync_mappings() must be called between a vmalloc and the moment the memory - * is made visible to the transport function. This registration acts as a -- * vmalloc_sync_all. Therefore, only if the module allocates virtual memory -+ * vmalloc_sync_mappings. Therefore, only if the module allocates virtual memory - * after its registration must it synchronize the TLBs. - */ - void lttng_transport_register(struct lttng_transport *transport) -@@ -2763,9 +2763,9 @@ void lttng_transport_register(struct lttng_transport *transport) - /* - * Make sure no page fault can be triggered by the module about to be - * registered. We deal with this here so we don't have to call -- * vmalloc_sync_all() in each module's init. -+ * vmalloc_sync_mappings() in each module's init. - */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - - mutex_lock(&sessions_mutex); - list_add_tail(&transport->node, <tng_transport_list); -diff --git a/lttng-ring-buffer-client.h b/lttng-ring-buffer-client.h -index d5c512c..ff62830 100644 ---- a/lttng-ring-buffer-client.h -+++ b/lttng-ring-buffer-client.h -@@ -10,7 +10,7 @@ - #include <linux/module.h> - #include <linux/types.h> - #include <lib/bitfield.h> --#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */ -+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ - #include <wrapper/trace-clock.h> - #include <lttng-events.h> - #include <lttng-tracer.h> -@@ -766,7 +766,7 @@ static int __init lttng_ring_buffer_client_init(void) - * This vmalloc sync all also takes care of the lib ring buffer - * vmalloc'd module pages when it is built as a module into LTTng. - */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - lttng_transport_register(<tng_relay_transport); - return 0; - } -diff --git a/lttng-ring-buffer-metadata-client.h b/lttng-ring-buffer-metadata-client.h -index 17ffd75..a098b8d 100644 ---- a/lttng-ring-buffer-metadata-client.h -+++ b/lttng-ring-buffer-metadata-client.h -@@ -9,7 +9,7 @@ - - #include <linux/module.h> - #include <linux/types.h> --#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */ -+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ - #include <lttng-events.h> - #include <lttng-tracer.h> - -@@ -428,7 +428,7 @@ static int __init lttng_ring_buffer_client_init(void) - * This vmalloc sync all also takes care of the lib ring buffer - * vmalloc'd module pages when it is built as a module into LTTng. - */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - lttng_transport_register(<tng_relay_transport); - return 0; - } -diff --git a/lttng-syscalls.c b/lttng-syscalls.c -index fb14f6b..97f1ba9 100644 ---- a/lttng-syscalls.c -+++ b/lttng-syscalls.c -@@ -760,7 +760,7 @@ int lttng_syscalls_register(struct lttng_channel *chan, void *filter) - struct lttng_kernel_event ev; - int ret; - -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - - if (!chan->sc_table) { - /* create syscall table mapping syscall to events */ -diff --git a/probes/lttng-kprobes.c b/probes/lttng-kprobes.c -index c0a15e4..a44eaa1 100644 ---- a/probes/lttng-kprobes.c -+++ b/probes/lttng-kprobes.c -@@ -132,7 +132,7 @@ int lttng_kprobes_register(const char *name, - * Well.. kprobes itself puts the page fault handler on the blacklist, - * but we can never be too careful. - */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - - ret = register_kprobe(&event->u.kprobe.kp); - if (ret) -diff --git a/probes/lttng-kretprobes.c b/probes/lttng-kretprobes.c -index 4b18d46..ab98ff2 100644 ---- a/probes/lttng-kretprobes.c -+++ b/probes/lttng-kretprobes.c -@@ -221,7 +221,7 @@ int lttng_kretprobes_register(const char *name, - * Well.. kprobes itself puts the page fault handler on the blacklist, - * but we can never be too careful. - */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - - ret = register_kretprobe(<tng_krp->krp); - if (ret) -diff --git a/probes/lttng-tracepoint-event-impl.h b/probes/lttng-tracepoint-event-impl.h -index 321cdfa..77b8638 100644 ---- a/probes/lttng-tracepoint-event-impl.h -+++ b/probes/lttng-tracepoint-event-impl.h -@@ -15,7 +15,7 @@ - #include <probes/lttng.h> - #include <probes/lttng-types.h> - #include <probes/lttng-probe-user.h> --#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */ -+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ - #include <wrapper/ringbuffer/frontend_types.h> - #include <wrapper/ringbuffer/backend.h> - #include <wrapper/rcu.h> -@@ -1391,7 +1391,7 @@ static __used struct lttng_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM) = { - #ifndef TP_MODULE_NOINIT - static int TP_ID(__lttng_events_init__, TRACE_SYSTEM)(void) - { -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - return lttng_probe_register(&TP_ID(__probe_desc___, TRACE_SYSTEM)); - } - -diff --git a/probes/lttng-uprobes.c b/probes/lttng-uprobes.c -index 64d8237..bc10128 100644 ---- a/probes/lttng-uprobes.c -+++ b/probes/lttng-uprobes.c -@@ -161,7 +161,7 @@ int lttng_uprobes_add_callsite(struct lttng_event *event, - } - - /* Ensure the memory we just allocated don't trigger page faults. */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - - uprobe_handler->event = event; - uprobe_handler->up_consumer.handler = lttng_uprobes_handler_pre; -diff --git a/probes/lttng.c b/probes/lttng.c -index 383202c..05bc138 100644 ---- a/probes/lttng.c -+++ b/probes/lttng.c -@@ -116,7 +116,7 @@ int __init lttng_logger_init(void) - { - int ret = 0; - -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - - /* /dev/lttng-logger */ - ret = misc_register(&logger_dev); -diff --git a/tests/probes/lttng-test.c b/tests/probes/lttng-test.c -index e347639..b450e7d 100644 ---- a/tests/probes/lttng-test.c -+++ b/tests/probes/lttng-test.c -@@ -97,7 +97,7 @@ int __init lttng_test_init(void) - int ret = 0; - - (void) wrapper_lttng_fixup_sig(THIS_MODULE); -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - lttng_test_filter_event_dentry = - proc_create_data(LTTNG_TEST_FILTER_EVENT_FILE, - S_IRUGO | S_IWUGO, NULL, -diff --git a/wrapper/vmalloc.h b/wrapper/vmalloc.h -index 0c3eb86..54715b5 100644 ---- a/wrapper/vmalloc.h -+++ b/wrapper/vmalloc.h -@@ -21,8 +21,35 @@ - #include <linux/kallsyms.h> - #include <wrapper/kallsyms.h> - -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) -+ -+static inline -+void wrapper_vmalloc_sync_mappings(void) -+{ -+ void (*vmalloc_sync_mappings_sym)(void); -+ -+ vmalloc_sync_mappings_sym = (void *) kallsyms_lookup_funcptr("vmalloc_sync_mappings"); -+ if (vmalloc_sync_mappings_sym) { -+ vmalloc_sync_mappings_sym(); -+ } else { -+#ifdef CONFIG_X86 -+ /* -+ * Only x86 needs vmalloc_sync_mappings to make sure LTTng does not -+ * trigger recursive page faults. -+ */ -+ printk_once(KERN_WARNING "LTTng: vmalloc_sync_mappings symbol lookup failed.\n"); -+ printk_once(KERN_WARNING "Page fault handler and NMI tracing might trigger faults.\n"); -+#endif -+ } -+} -+ -+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */ -+ -+/* -+ * Map vmalloc_sync_mappings to vmalloc_sync_all() on kernels before 5.7. -+ */ - static inline --void wrapper_vmalloc_sync_all(void) -+void wrapper_vmalloc_sync_mappings(void) - { - void (*vmalloc_sync_all_sym)(void); - -@@ -40,13 +67,29 @@ void wrapper_vmalloc_sync_all(void) - #endif - } - } -+ -+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */ -+ - #else - -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) -+ -+static inline -+void wrapper_vmalloc_sync_mappings(void) -+{ -+ return vmalloc_sync_mappings(); -+} -+ -+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */ -+ - static inline --void wrapper_vmalloc_sync_all(void) -+void wrapper_vmalloc_sync_mappings(void) - { - return vmalloc_sync_all(); - } -+ -+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */ -+ - #endif - - #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0)) -@@ -61,7 +104,7 @@ void *lttng_kvmalloc_node(unsigned long size, gfp_t flags, int node) - * Make sure we don't trigger recursive page faults in the - * tracing fast path. - */ -- wrapper_vmalloc_sync_all(); -+ wrapper_vmalloc_sync_mappings(); - } - return ret; - } --- -2.17.1 - |