Commit 5f23ffdf authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: introduce tracepoint for f2fs_rename() 



This patch adds tracepoints for f2fs_rename().

Signed-off-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 53edb549

fs/f2fs/namei.c

+11 −5
Original line number Diff line number Diff line
@@ -1315,21 +1315,27 @@ static int f2fs_rename2(struct mnt_idmap *idmap, 
	if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))

		return -EINVAL;



	trace_f2fs_rename_start(old_dir, old_dentry, new_dir, new_dentry,

								flags);



	err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,

				     flags);

	if (err)

		return err;



	if (flags & RENAME_EXCHANGE) {

		return f2fs_cross_rename(old_dir, old_dentry,

	if (flags & RENAME_EXCHANGE)

		err = f2fs_cross_rename(old_dir, old_dentry,

					new_dir, new_dentry);

	}

	else

	/*

	 * VFS has already handled the new dentry existence case,

	 * here, we just deal with "RENAME_NOREPLACE" as regular rename.

	 */

	return f2fs_rename(idmap, old_dir, old_dentry,

		err = f2fs_rename(idmap, old_dir, old_dentry,

					new_dir, new_dentry, flags);



	trace_f2fs_rename_end(old_dentry, new_dentry, flags, err);

	return err;

}



static const char *f2fs_encrypted_get_link(struct dentry *dentry,

include/trace/events/f2fs.h

+69 −0
Original line number Diff line number Diff line
@@ -866,6 +866,75 @@ TRACE_EVENT(f2fs_lookup_end, 
		__entry->err)

);



TRACE_EVENT(f2fs_rename_start,



	TP_PROTO(struct inode *old_dir, struct dentry *old_dentry,

			struct inode *new_dir, struct dentry *new_dentry,

			unsigned int flags),



	TP_ARGS(old_dir, old_dentry, new_dir, new_dentry, flags),



	TP_STRUCT__entry(

		__field(dev_t,		dev)

		__field(ino_t,		ino)

		__string(old_name,	old_dentry->d_name.name)

		__field(ino_t,		new_pino)

		__string(new_name,	new_dentry->d_name.name)

		__field(unsigned int,	flags)

	),



	TP_fast_assign(

		__entry->dev		= old_dir->i_sb->s_dev;

		__entry->ino		= old_dir->i_ino;

		__assign_str(old_name, old_dentry->d_name.name);

		__entry->new_pino	= new_dir->i_ino;

		__assign_str(new_name, new_dentry->d_name.name);

		__entry->flags		= flags;

	),



	TP_printk("dev = (%d,%d), old_dir = %lu, old_name: %s, "

		"new_dir = %lu, new_name: %s, flags = %u",

		show_dev_ino(__entry),

		__get_str(old_name),

		__entry->new_pino,

		__get_str(new_name),

		__entry->flags)

);



TRACE_EVENT(f2fs_rename_end,



	TP_PROTO(struct dentry *old_dentry, struct dentry *new_dentry,

			unsigned int flags, int ret),



	TP_ARGS(old_dentry, new_dentry, flags, ret),



	TP_STRUCT__entry(

		__field(dev_t,		dev)

		__field(ino_t,		ino)

		__string(old_name,	old_dentry->d_name.name)

		__string(new_name,	new_dentry->d_name.name)

		__field(unsigned int,	flags)

		__field(int,		ret)

	),



	TP_fast_assign(

		__entry->dev		= old_dentry->d_sb->s_dev;

		__entry->ino		= old_dentry->d_inode->i_ino;

		__assign_str(old_name, old_dentry->d_name.name);

		__assign_str(new_name, new_dentry->d_name.name);

		__entry->flags		= flags;

		__entry->ret		= ret;

	),



	TP_printk("dev = (%d,%d), ino = %lu, old_name: %s, "

		"new_name: %s, flags = %u, ret = %d",

		show_dev_ino(__entry),

		__get_str(old_name),

		__get_str(new_name),

		__entry->flags,

		__entry->ret)

);



TRACE_EVENT(f2fs_readdir,



	TP_PROTO(struct inode *dir, loff_t start_pos, loff_t end_pos, int err),