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| author | Josef Bacik <josef@redhat.com> | 2012-01-10 10:31:31 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2012-01-16 15:29:43 -0500 |
| commit | 8c2a3ca20f6233677ac3222c6506174010eb414f (patch) | |
| tree | 88d1105c665d355b363929557ed0c5489795e348 /include/trace | |
| parent | 90290e19820e3323ce6b9c2888eeb68bf29c278b (diff) | |
| download | linux-stable-8c2a3ca20f6233677ac3222c6506174010eb414f.tar.gz linux-stable-8c2a3ca20f6233677ac3222c6506174010eb414f.tar.bz2 linux-stable-8c2a3ca20f6233677ac3222c6506174010eb414f.zip | |
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.h | 30 |
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), |