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f2fs: add tracepoint for f2fs_direct_IO

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This patch adds a tracepoint for f2fs_direct_IO.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2014-07-31 21:11:22 +08:00 • committed by Jaegeuk Kim
parent b3582c6892
commit 70407fad85
2 changed files with 68 additions and 0 deletions
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5
fs/f2fs/data.c
View file

@ -1086,9 +1086,14 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb,
/* clear fsync mark to recover these blocks */ /* clear fsync mark to recover these blocks */
fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino); fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino);
trace_f2fs_direct_IO_enter(inode, offset, count, rw);
err = blockdev_direct_IO(rw, iocb, inode, iter, offset, get_data_block); err = blockdev_direct_IO(rw, iocb, inode, iter, offset, get_data_block);
if (err < 0 && (rw & WRITE)) if (err < 0 && (rw & WRITE))
f2fs_write_failed(mapping, offset + count); f2fs_write_failed(mapping, offset + count);
trace_f2fs_direct_IO_exit(inode, offset, count, rw, err);
return err; return err;
} }

63
include/trace/events/f2fs.h
View file

@ -587,6 +587,69 @@ TRACE_EVENT(f2fs_fallocate,
__entry->ret) __entry->ret)
); );
TRACE_EVENT(f2fs_direct_IO_enter,
TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw),
TP_ARGS(inode, offset, len, rw),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__field(loff_t, pos)
__field(unsigned long, len)
__field(int, rw)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->pos = offset;
__entry->len = len;
__entry->rw = rw;
),
TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu rw = %d",
show_dev_ino(__entry),
__entry->pos,
__entry->len,
__entry->rw)
);
TRACE_EVENT(f2fs_direct_IO_exit,
TP_PROTO(struct inode *inode, loff_t offset, unsigned long len,
int rw, int ret),
TP_ARGS(inode, offset, len, rw, ret),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__field(loff_t, pos)
__field(unsigned long, len)
__field(int, rw)
__field(int, ret)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->pos = offset;
__entry->len = len;
__entry->rw = rw;
__entry->ret = ret;
),
TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu "
"rw = %d ret = %d",
show_dev_ino(__entry),
__entry->pos,
__entry->len,
__entry->rw,
__entry->ret)
);
TRACE_EVENT(f2fs_reserve_new_block, TRACE_EVENT(f2fs_reserve_new_block,
TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node), TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node),