diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2017-10-19 14:15:56 -0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-11-01 20:45:35 +0100 |
| commit | dd48d4072e0cdac51edcbff66342fe2f21b5b588 (patch) | |
| tree | 14a31bbdb7304a4510790e7c10c94e576459294b | |
| parent | 8b62f87bad9cf06e536799bf8cb942ab95f6bfa4 (diff) | |
btrfs: add tracepoints for outstanding extents mods
This is handy for tracing problems with modifying the outstanding
extents counters.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/btrfs_inode.h | 2 | ||||
| -rw-r--r-- | include/trace/events/btrfs.h | 21 |
2 files changed, 23 insertions, 0 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index bed88811f686..427c8738a3bd 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -274,6 +274,8 @@ static inline void btrfs_mod_outstanding_extents(struct btrfs_inode *inode, inode->outstanding_extents += mod; if (btrfs_is_free_space_inode(inode)) return; + trace_btrfs_inode_mod_outstanding_extents(inode->root, btrfs_ino(inode), + mod); } static inline void btrfs_mod_reserved_extents(struct btrfs_inode *inode, int mod) diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index bfe2f23b578c..5848ae7845da 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -1695,6 +1695,27 @@ DEFINE_EVENT(btrfs__prelim_ref, btrfs_prelim_ref_insert, TP_ARGS(fs_info, oldref, newref, tree_size) ); +TRACE_EVENT(btrfs_inode_mod_outstanding_extents, + TP_PROTO(struct btrfs_root *root, u64 ino, int mod), + + TP_ARGS(root, ino, mod), + + TP_STRUCT__entry_btrfs( + __field( u64, root_objectid ) + __field( u64, ino ) + __field( int, mod ) + ), + + TP_fast_assign_btrfs(root->fs_info, + __entry->root_objectid = root->objectid; + __entry->ino = ino; + __entry->mod = mod; + ), + + TP_printk_btrfs("root=%llu(%s) ino=%llu mod=%d", + show_root_type(__entry->root_objectid), + (unsigned long long)__entry->ino, __entry->mod) +); #endif /* _TRACE_BTRFS_H */ /* This part must be outside protection */ |