From 354b979009cacb3acd9e669b13d168aeeb3202fa Mon Sep 17 00:00:00 2001 From: Michael Jeanson Date: Mon, 18 Jun 2018 14:53:18 -0400 Subject: [PATCH] Fix: btrfs: use fs_info for btrfs_handle_em_exist tracepoint See upstream commit: commit f46b24c9457143a367c6707eac82d546e2bcf280 Author: David Sterba Date: Tue Apr 3 21:45:57 2018 +0200 btrfs: use fs_info for btrfs_handle_em_exist tracepoint We really want to know to which filesystem the extent map events belong, but as it cannot be reached from the extent_map pointers, we need to pass it down the callchain. Signed-off-by: Michael Jeanson Signed-off-by: Mathieu Desnoyers --- instrumentation/events/lttng-module/btrfs.h | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/instrumentation/events/lttng-module/btrfs.h b/instrumentation/events/lttng-module/btrfs.h index 20b100e8..75cc73b3 100644 --- a/instrumentation/events/lttng-module/btrfs.h +++ b/instrumentation/events/lttng-module/btrfs.h @@ -273,7 +273,26 @@ LTTNG_TRACEPOINT_EVENT(btrfs_get_extent, #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) */ -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,17,0)) +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,18,0)) +LTTNG_TRACEPOINT_EVENT(btrfs_handle_em_exist, + + TP_PROTO(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, 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(4,17,0)) LTTNG_TRACEPOINT_EVENT(btrfs_handle_em_exist, TP_PROTO(const struct extent_map *existing, const struct extent_map *map, u64 start, u64 len), -- 2.34.1