| From 52563d02a9234215b62c5f519aa1b5d8589ccd0a Mon Sep 17 00:00:00 2001 |
| From: Michael Jeanson <mjeanson@efficios.com> |
| Date: Mon, 24 Aug 2020 15:37:50 -0400 |
| Subject: [PATCH 05/10] =?UTF-8?q?fix:=20ext4:=20indicate=20via=20a=20block?= |
| =?UTF-8?q?=20bitmap=20read=20is=20prefetched=E2=80=A6=20(v5.9)?= |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| See upstream commit: |
| |
| commit ab74c7b23f3770935016e3eb3ecdf1e42b73efaa |
| Author: Theodore Ts'o <tytso@mit.edu> |
| Date: Wed Jul 15 11:48:55 2020 -0400 |
| |
| ext4: indicate via a block bitmap read is prefetched via a tracepoint |
| |
| Modify the ext4_read_block_bitmap_load tracepoint so that it tells us |
| whether a block bitmap is being prefetched. |
| |
| Upstream-Status: Backport |
| |
| Signed-off-by: Michael Jeanson <mjeanson@efficios.com> |
| Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| Change-Id: I0e5e2c5b8004223d0928235c092449ee16a940e1 |
| --- |
| instrumentation/events/lttng-module/ext4.h | 14 ++++++++++++++ |
| 1 file changed, 14 insertions(+) |
| |
| diff --git a/instrumentation/events/lttng-module/ext4.h b/instrumentation/events/lttng-module/ext4.h |
| index 72ad4c9..4476abb 100644 |
| --- a/instrumentation/events/lttng-module/ext4.h |
| +++ b/instrumentation/events/lttng-module/ext4.h |
| @@ -893,12 +893,26 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(ext4__bitmap_load, ext4_mb_buddy_bitmap_load, |
| TP_ARGS(sb, group) |
| ) |
| |
| +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0)) |
| +LTTNG_TRACEPOINT_EVENT(ext4_read_block_bitmap_load, |
| + TP_PROTO(struct super_block *sb, unsigned long group, bool prefetch), |
| + |
| + TP_ARGS(sb, group, prefetch), |
| + |
| + TP_FIELDS( |
| + ctf_integer(dev_t, dev, sb->s_dev) |
| + ctf_integer(__u32, group, group) |
| + ctf_integer(bool, prefetch, prefetch) |
| + ) |
| +) |
| +#else |
| LTTNG_TRACEPOINT_EVENT_INSTANCE(ext4__bitmap_load, ext4_read_block_bitmap_load, |
| |
| TP_PROTO(struct super_block *sb, unsigned long group), |
| |
| TP_ARGS(sb, group) |
| ) |
| +#endif |
| |
| LTTNG_TRACEPOINT_EVENT_INSTANCE(ext4__bitmap_load, ext4_load_inode_bitmap, |
| |
| -- |
| 2.19.1 |
| |