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| author | Theodore Ts'o <tytso@mit.edu> | 2009-09-16 19:30:40 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-09-16 19:30:40 -0400 |
| commit | fb40ba0d98968bc3454731360363d725b4f1064c (patch) | |
| tree | 08e8bb15b49bc6310e4c41653889e055d9594d9a | |
| parent | 1b9c12f44c1eb614fd3b8822bfe8f1f5d8e53737 (diff) | |
| download | linux-fb40ba0d98968bc3454731360363d725b4f1064c.tar.gz linux-fb40ba0d98968bc3454731360363d725b4f1064c.tar.bz2 linux-fb40ba0d98968bc3454731360363d725b4f1064c.zip | |
ext4: Add a tracepoint for ext4_alloc_da_blocks()
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/inode.c | 2 | ||||
| -rw-r--r-- | include/trace/events/ext4.h | 27 |
2 files changed, 29 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index a5b4ce40cc66..9887a0c562d5 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3128,6 +3128,8 @@ out: */ int ext4_alloc_da_blocks(struct inode *inode) { + trace_ext4_alloc_da_blocks(inode); + if (!EXT4_I(inode)->i_reserved_data_blocks && !EXT4_I(inode)->i_reserved_meta_blocks) return 0; diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 6fe6ce9ee071..c1bd8f1e8b94 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -10,6 +10,9 @@ struct ext4_allocation_context; struct ext4_allocation_request; struct ext4_prealloc_space; +struct ext4_inode_info; + +#define EXT4_I(inode) (container_of(inode, struct ext4_inode_info, vfs_inode)) TRACE_EVENT(ext4_free_inode, TP_PROTO(struct inode *inode), @@ -710,6 +713,30 @@ TRACE_EVENT(ext4_sync_fs, __entry->wait) ); +TRACE_EVENT(ext4_alloc_da_blocks, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( unsigned int, data_blocks ) + __field( unsigned int, meta_blocks ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->data_blocks = EXT4_I(inode)->i_reserved_data_blocks; + __entry->meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks; + ), + + TP_printk("dev %s ino %lu data_blocks %u meta_blocks %u", + jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino, + __entry->data_blocks, __entry->meta_blocks) +); + #endif /* _TRACE_EXT4_H */ /* This part must be outside protection */ |