STATIC void
xfs_ioend_wake(
xfs_inode_t *ip)
{
if (atomic_dec_and_test(&ip->i_iocount))
wake_up(to_ioend_wq(ip));
}
void
xfs_ioend_wait(
xfs_inode_t *ip)
{
wait_queue_head_t *wq = to_ioend_wq(ip);
wait_event(*wq, (atomic_read(&ip->i_iocount) == 0));
}
void ext4_free_io_end(ext4_io_end_t *io)
{
int i;
wait_queue_head_t *wq;
BUG_ON(!io);
if (io->page)
put_page(io->page);
for (i = 0; i < io->num_io_pages; i++)
put_io_page(io->pages[i]);
io->num_io_pages = 0;
wq = to_ioend_wq(io->inode);
if (atomic_dec_and_test(&EXT4_I(io->inode)->i_ioend_count) &&
waitqueue_active(wq))
wake_up_all(wq);
kmem_cache_free(io_end_cachep, io);
}
void ext4_ioend_wait(struct inode *inode)
{
wait_queue_head_t *wq = to_ioend_wq(inode);
wait_event(*wq, (atomic_read(&EXT4_I(inode)->i_ioend_count) == 0));
}