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authorJosef Bacik <josef@redhat.com>2012-01-10 10:31:31 -0500
committerChris Mason <chris.mason@oracle.com>2012-01-16 15:29:43 -0500
commit8c2a3ca20f6233677ac3222c6506174010eb414f (patch)
tree88d1105c665d355b363929557ed0c5489795e348 /include/trace
parent90290e19820e3323ce6b9c2888eeb68bf29c278b (diff)
downloadlinux-linaro-stable-8c2a3ca20f6233677ac3222c6506174010eb414f.tar.gz
Btrfs: space leak tracepoints
This in addition to a script in my btrfs-tracing tree will help track down space leaks when we're getting space left over in block groups on umount. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/btrfs.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 1750c0e6660c..84f3001a568d 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -55,6 +55,8 @@ struct extent_buffer;
{ BTRFS_BLOCK_GROUP_DUP, "DUP"}, \
{ BTRFS_BLOCK_GROUP_RAID10, "RAID10"}
+#define BTRFS_UUID_SIZE 16
+
TRACE_EVENT(btrfs_transaction_commit,
TP_PROTO(struct btrfs_root *root),
@@ -632,6 +634,34 @@ TRACE_EVENT(btrfs_cow_block,
__entry->cow_level)
);
+TRACE_EVENT(btrfs_space_reservation,
+
+ TP_PROTO(struct btrfs_fs_info *fs_info, char *type, u64 val,
+ u64 bytes, int reserve),
+
+ TP_ARGS(fs_info, type, val, bytes, reserve),
+
+ TP_STRUCT__entry(
+ __array( u8, fsid, BTRFS_UUID_SIZE )
+ __string( type, type )
+ __field( u64, val )
+ __field( u64, bytes )
+ __field( int, reserve )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->fsid, fs_info->fsid, BTRFS_UUID_SIZE);
+ __assign_str(type, type);
+ __entry->val = val;
+ __entry->bytes = bytes;
+ __entry->reserve = reserve;
+ ),
+
+ TP_printk("%pU: %s: %Lu %s %Lu", __entry->fsid, __get_str(type),
+ __entry->val, __entry->reserve ? "reserve" : "release",
+ __entry->bytes)
+);
+
DECLARE_EVENT_CLASS(btrfs__reserved_extent,
TP_PROTO(struct btrfs_root *root, u64 start, u64 len),