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f2fs: add tracepoints to debug the block allocation 

Add tracepoints to debug the block allocation & fallocate.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
[Jaegeuk: enhance information]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
hifive-unleashed-5.1
Namjae Jeon 2013-04-23 17:00:52 +09:00 committed by Jaegeuk Kim
parent 8e46b3ed11
commit c01e285324
3 changed files with 67 additions and 0 deletions
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2
fs/f2fs/data.c
View File

@ -55,6 +55,8 @@ int reserve_new_block(struct dnode_of_data *dn)
if (!inc_valid_block_count(sbi, dn->inode, 1))
return -ENOSPC;
trace_f2fs_reserve_new_block(dn->inode, dn->nid, dn->ofs_in_node);
__set_data_blkaddr(dn, NEW_ADDR);
dn->data_blkaddr = NEW_ADDR;
sync_inode_page(dn);

1
fs/f2fs/file.c
View File

@ -546,6 +546,7 @@ static long f2fs_fallocate(struct file *file, int mode,
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
}
trace_f2fs_fallocate(inode, mode, offset, len, ret);
return ret;
}

64
include/trace/events/f2fs.h
View File

@ -514,6 +514,70 @@ TRACE_EVENT(f2fs_get_victim,
__entry->free)
);
TRACE_EVENT(f2fs_fallocate,
TP_PROTO(struct inode *inode, int mode,
loff_t offset, loff_t len, int ret),
TP_ARGS(inode, mode, offset, len, ret),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__field(int, mode)
__field(loff_t, offset)
__field(loff_t, len)
__field(loff_t, size)
__field(blkcnt_t, blocks)
__field(int, ret)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->mode = mode;
__entry->offset = offset;
__entry->len = len;
__entry->size = inode->i_size;
__entry->blocks = inode->i_blocks;
__entry->ret = ret;
),
TP_printk("dev = (%d,%d), ino = %lu, mode = %x, offset = %lld, "
"len = %lld, i_size = %lld, i_blocks = %llu, ret = %d",
show_dev_ino(__entry),
__entry->mode,
(unsigned long long)__entry->offset,
(unsigned long long)__entry->len,
(unsigned long long)__entry->size,
(unsigned long long)__entry->blocks,
__entry->ret)
);
TRACE_EVENT(f2fs_reserve_new_block,
TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node),
TP_ARGS(inode, nid, ofs_in_node),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(nid_t, nid)
__field(unsigned int, ofs_in_node)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->nid = nid;
__entry->ofs_in_node = ofs_in_node;
),
TP_printk("dev = (%d,%d), nid = %u, ofs_in_node = %u",
show_dev(__entry),
(unsigned int)__entry->nid,
__entry->ofs_in_node)
);
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */