/*
* we are inverting the sb->s_inode_lru_lock/inode->i_lock here,
* so use a trylock. If we fail to get the lock, just move the
* inode to the back of the list so we don't spin on it.
*/
if (!spin_trylock(&inode->i_lock)) {
list_move(&inode->i_lru, &sb->s_inode_lru);
continue;
}
was introduced in "fs: Lock the inode LRU list separately". But list_move
moves to the front of the list, where the item already is, making this a
no-op. Should probably be a list_move_tail.
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