X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=blobdiff_plain;f=lttng-context-mnt-ns.c;h=b5bb955a46c6e472cf683eecec5824ce077ae817;hp=98d5b8e60bc78f3f0195ee3557442cee1e0243b7;hb=HEAD;hpb=a6cf40a4491954d6f81052f8bbce757f73727f16

diff --git a/lttng-context-mnt-ns.c b/lttng-context-mnt-ns.c
deleted file mode 100644
index 98d5b8e6..00000000
--- a/lttng-context-mnt-ns.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
- *
- * lttng-context-mnt-ns.c
- *
- * LTTng mount namespace context.
- *
- * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *               2019 Michael Jeanson <mjeanson@efficios.com>
- *
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <lttng-events.h>
-#include <wrapper/ringbuffer/frontend_types.h>
-#include <wrapper/vmalloc.h>
-#include <wrapper/namespace.h>
-#include <lttng-tracer.h>
-
-#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \
-	(LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
-
-#include <../fs/mount.h>
-
-static
-size_t mnt_ns_get_size(size_t offset)
-{
-	size_t size = 0;
-
-	size += lib_ring_buffer_align(offset, lttng_alignof(unsigned int));
-	size += sizeof(unsigned int);
-	return size;
-}
-
-static
-void mnt_ns_record(struct lttng_ctx_field *field,
-		 struct lib_ring_buffer_ctx *ctx,
-		 struct lttng_channel *chan)
-{
-	unsigned int mnt_ns_inum = 0;
-
-	/*
-	 * nsproxy can be NULL when scheduled out of exit.
-	 *
-	 * As documented in 'linux/nsproxy.h' namespaces access rules, no
-	 * precautions should be taken when accessing the current task's
-	 * namespaces, just dereference the pointers.
-	 */
-	if (current->nsproxy)
-		mnt_ns_inum = current->nsproxy->mnt_ns->lttng_ns_inum;
-
-	lib_ring_buffer_align_ctx(ctx, lttng_alignof(mnt_ns_inum));
-	chan->ops->event_write(ctx, &mnt_ns_inum, sizeof(mnt_ns_inum));
-}
-
-static
-void mnt_ns_get_value(struct lttng_ctx_field *field,
-		struct lttng_probe_ctx *lttng_probe_ctx,
-		union lttng_ctx_value *value)
-{
-	unsigned int mnt_ns_inum = 0;
-
-	/*
-	 * nsproxy can be NULL when scheduled out of exit.
-	 *
-	 * As documented in 'linux/nsproxy.h' namespaces access rules, no
-	 * precautions should be taken when accessing the current task's
-	 * namespaces, just dereference the pointers.
-	 */
-	if (current->nsproxy)
-		mnt_ns_inum = current->nsproxy->mnt_ns->lttng_ns_inum;
-
-	value->s64 = mnt_ns_inum;
-}
-
-int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx)
-{
-	struct lttng_ctx_field *field;
-
-	field = lttng_append_context(ctx);
-	if (!field)
-		return -ENOMEM;
-	if (lttng_find_context(*ctx, "mnt_ns")) {
-		lttng_remove_context_field(ctx, field);
-		return -EEXIST;
-	}
-	field->event_field.name = "mnt_ns";
-	field->event_field.type.atype = atype_integer;
-	field->event_field.type.u.basic.integer.size = sizeof(unsigned int) * CHAR_BIT;
-	field->event_field.type.u.basic.integer.alignment = lttng_alignof(unsigned int) * CHAR_BIT;
-	field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(unsigned int);
-	field->event_field.type.u.basic.integer.reverse_byte_order = 0;
-	field->event_field.type.u.basic.integer.base = 10;
-	field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
-	field->get_size = mnt_ns_get_size;
-	field->record = mnt_ns_record;
-	field->get_value = mnt_ns_get_value;
-	lttng_context_update(*ctx);
-	wrapper_vmalloc_sync_all();
-	return 0;
-}
-EXPORT_SYMBOL_GPL(lttng_add_mnt_ns_to_ctx);
-
-#endif