From: Michael Jeanson <mjeanson@efficios.com>
Date: Fri, 18 Nov 2022 21:28:56 +0000 (-0500)
Subject: Drop support for kernels < 4.4 from 'wrapper/mm.h'
X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=commitdiff_plain;h=686eb00593241450a0bd19faa68c0725abd63b0c

Drop support for kernels < 4.4 from 'wrapper/mm.h'

Change-Id: I9bdbecf08654d699f8f45fbc7ba862b1fbd822eb
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/include/wrapper/mm.h b/include/wrapper/mm.h
index d3bdda66..f7e8e87e 100644
--- a/include/wrapper/mm.h
+++ b/include/wrapper/mm.h
@@ -40,31 +40,4 @@ bool wrapper_check_enough_free_pages(unsigned long num_pages)
 }
 #endif
 
-#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
-static inline
-void wrapper_set_current_oom_origin(void)
-{
-	return set_current_oom_origin();
-}
-
-static inline
-void wrapper_clear_current_oom_origin(void)
-{
-	return clear_current_oom_origin();
-}
-
-#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) */
-
-static inline
-void wrapper_set_current_oom_origin(void)
-{
-	return;
-}
-
-static inline
-void wrapper_clear_current_oom_origin(void)
-{
-	return;
-}
-#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) */
 #endif /* _LTTNG_WRAPPER_MM_H */
diff --git a/src/lib/ringbuffer/ring_buffer_backend.c b/src/lib/ringbuffer/ring_buffer_backend.c
index 9a339be0..2b88b11c 100644
--- a/src/lib/ringbuffer/ring_buffer_backend.c
+++ b/src/lib/ringbuffer/ring_buffer_backend.c
@@ -61,7 +61,7 @@ int lib_ring_buffer_backend_allocate(const struct lttng_kernel_ring_buffer_confi
 	 * end up running out of memory because of this buffer allocation, we
 	 * want to kill the offending app first.
 	 */
-	wrapper_set_current_oom_origin();
+	set_current_oom_origin();
 
 	num_pages_per_subbuf = num_pages >> get_count_order(num_subbuf);
 	subbuf_size = chanb->subbuf_size;
@@ -157,7 +157,7 @@ int lib_ring_buffer_backend_allocate(const struct lttng_kernel_ring_buffer_confi
 	 * will not fault.
 	 */
 	wrapper_vmalloc_sync_mappings();
-	wrapper_clear_current_oom_origin();
+	clear_current_oom_origin();
 	vfree(pages);
 	return 0;
 
@@ -174,7 +174,7 @@ depopulate:
 array_error:
 	vfree(pages);
 pages_error:
-	wrapper_clear_current_oom_origin();
+	clear_current_oom_origin();
 not_enough_pages:
 	return -ENOMEM;
 }