fix: btrfs: tracepoints: constify all pointers (v5.5)

See upstream commit:

  commit 1d2e7c7c3ed73cc510a4dc093df2a935092ff5ad
  Author: David Sterba <dsterba@suse.com>
  Date:   Thu Oct 17 13:28:57 2019 +0200

    btrfs: tracepoints: constify all pointers

    We don't modify the data passed to tracepoints, some of the declarations
    are already const, add it to the rest.

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

diff --git a/instrumentation/events/lttng-module/btrfs.h b/instrumentation/events/lttng-module/btrfs.h
index f3bb0310afdb1a651369509124113e9240c4aed5..fbedd6cffcaa2d262364fad50164cf7c91285f06 100644 (file)
--- a/instrumentation/events/lttng-module/btrfs.h
+++ b/instrumentation/events/lttng-module/btrfs.h
@@ -289,7 +289,26 @@ LTTNG_TRACEPOINT_EVENT(btrfs_get_extent,
 
 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) */
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,18,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,5,0))
+LTTNG_TRACEPOINT_EVENT(btrfs_handle_em_exist,
+
+       TP_PROTO(const struct btrfs_fs_info *fs_info,
+               const struct extent_map *existing, const struct extent_map *map,
+               u64 start, u64 len),
+
+       TP_ARGS(fs_info, existing, map, start, len),
+
+       TP_FIELDS(
+               ctf_array(u8, fsid, lttng_fs_info_fsid, BTRFS_UUID_SIZE)
+               ctf_integer(u64, e_start, existing->start)
+               ctf_integer(u64, e_len, existing->len)
+               ctf_integer(u64, map_start, map->start)
+               ctf_integer(u64, map_len, map->len)
+               ctf_integer(u64, start, start)
+               ctf_integer(u64, len, len)
+       )
+)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,18,0))
 LTTNG_TRACEPOINT_EVENT(btrfs_handle_em_exist,
 
        TP_PROTO(struct btrfs_fs_info *fs_info,
@@ -1244,7 +1263,23 @@ LTTNG_TRACEPOINT_EVENT(btrfs_cow_block,
 )
 #endif
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0) || \
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,5,0))
+LTTNG_TRACEPOINT_EVENT(btrfs_space_reservation,
+
+       TP_PROTO(const struct btrfs_fs_info *fs_info, const char *type, u64 val,
+                u64 bytes, int reserve),
+
+       TP_ARGS(fs_info, type, val, bytes, reserve),
+
+       TP_FIELDS(
+               ctf_array(u8, fsid, lttng_fs_info_fsid, BTRFS_UUID_SIZE)
+               ctf_string(type, type)
+               ctf_integer(u64, val, val)
+               ctf_integer(u64, bytes, bytes)
+               ctf_integer(int, reserve, reserve)
+       )
+)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0) || \
        LTTNG_SLE_KERNEL_RANGE(4,4,73,5,0,0, 4,4,73,6,0,0) || \
        LTTNG_SLE_KERNEL_RANGE(4,4,82,6,0,0, 4,4,82,7,0,0) || \
        LTTNG_SLE_KERNEL_RANGE(4,4,92,6,0,0, 4,4,92,7,0,0) || \