[sysfs] why ->delete_inode() instead of ->clear_inode()?

[Al Viro <viro@xxxxxxxxxxxxxxxxxx>]

	Is there any problem with simply doing

void sysfs_clear_inode(struct inode *inode)
{
	struct sysfs_dirent *sd  = inode->i_private;
	sysfs_put(sd);
}

instead of (mis)using ->delete_inode()?  Note that clear_inode() is
not going to be called on any inodes with positive i_count, that
you are forcibly evicting them from icache on the final iput() anyway
and that clear_inode() is never called twice on the same struct
inode()...

Al, very unenthusiastic about ->delete_inode() instances in general - that
sucker gets abused in the strangest ways by a lot of filesystems ;-/
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