summaryrefslogtreecommitdiffstats
path: root/include/trace
diff options
context:
space:
mode:
authorJosef Bacik <jbacik@fb.com>2016-03-25 13:25:57 -0400
committerDavid Sterba <dsterba@suse.com>2016-07-07 18:45:53 +0200
commitdce3afa5932776f7b925249fbef435c265014f91 (patch)
tree945c6ebf1ca97d140bd95a16400b484c7d10eebf /include/trace
parentf376df2b7da3a40f62f861a65efdd8c29fa1b877 (diff)
downloadop-kernel-dev-dce3afa5932776f7b925249fbef435c265014f91.zip
op-kernel-dev-dce3afa5932776f7b925249fbef435c265014f91.tar.gz
Btrfs: add fsid to some tracepoints
When tracing enospc problems on a box with multiple file systems mounted I need to be able to differentiate between the two file systems. Most of the important trace points I'm looking at already have an fsid, but the reserved extent trace points do not, so add that to make it possible to figure out which trace point belongs to which file system. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/btrfs.h17
1 files changed, 11 insertions, 6 deletions
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 226c7f2..5b81ef3 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -873,18 +873,21 @@ DECLARE_EVENT_CLASS(btrfs__reserved_extent,
TP_ARGS(root, start, len),
TP_STRUCT__entry(
- __field( u64, root_objectid )
- __field( u64, start )
- __field( u64, len )
+ __array( u8, fsid, BTRFS_UUID_SIZE )
+ __field( u64, root_objectid )
+ __field( u64, start )
+ __field( u64, len )
),
TP_fast_assign(
+ memcpy(__entry->fsid, root->fs_info->fsid, BTRFS_UUID_SIZE);
__entry->root_objectid = root->root_key.objectid;
__entry->start = start;
__entry->len = len;
),
- TP_printk("root = %llu(%s), start = %llu, len = %llu",
+ TP_printk("%pU: root = %llu(%s), start = %llu, len = %llu",
+ __entry->fsid,
show_root_type(__entry->root_objectid),
(unsigned long long)__entry->start,
(unsigned long long)__entry->len)
@@ -941,6 +944,7 @@ DECLARE_EVENT_CLASS(btrfs__reserve_extent,
TP_ARGS(root, block_group, start, len),
TP_STRUCT__entry(
+ __array( u8, fsid, BTRFS_UUID_SIZE )
__field( u64, root_objectid )
__field( u64, bg_objectid )
__field( u64, flags )
@@ -949,6 +953,7 @@ DECLARE_EVENT_CLASS(btrfs__reserve_extent,
),
TP_fast_assign(
+ memcpy(__entry->fsid, root->fs_info->fsid, BTRFS_UUID_SIZE);
__entry->root_objectid = root->root_key.objectid;
__entry->bg_objectid = block_group->key.objectid;
__entry->flags = block_group->flags;
@@ -956,8 +961,8 @@ DECLARE_EVENT_CLASS(btrfs__reserve_extent,
__entry->len = len;
),
- TP_printk("root = %Lu(%s), block_group = %Lu, flags = %Lu(%s), "
- "start = %Lu, len = %Lu",
+ TP_printk("%pU: root = %Lu(%s), block_group = %Lu, flags = %Lu(%s), "
+ "start = %Lu, len = %Lu", __entry->fsid,
show_root_type(__entry->root_objectid), __entry->bg_objectid,
__entry->flags, __print_flags((unsigned long)__entry->flags,
"|", BTRFS_GROUP_FLAGS),
OpenPOWER on IntegriCloud