/* * check a range of space and convert unwritten extents to written. * * Called with inode->i_mutex; we depend on this when we manipulate * io->flag, since we could otherwise race with ext4_flush_completed_IO() */ int ext4_end_io_nolock(ext4_io_end_t *io) { struct inode *inode = io->inode; loff_t offset = io->offset; ssize_t size = io->size; int ret = 0; ext4_debug("ext4_end_io_nolock: io 0x%p from inode %lu,list->next 0x%p," "list->prev 0x%p\n", io, inode->i_ino, io->list.next, io->list.prev); ret = ext4_convert_unwritten_extents(inode, offset, size); if (ret < 0) { ext4_msg(inode->i_sb, KERN_EMERG, "failed to convert unwritten extents to written " "extents -- potential data loss! " "(inode %lu, offset %llu, size %zd, error %d)", inode->i_ino, offset, size, ret); } /* Wake up anyone waiting on unwritten extent conversion */ if (atomic_dec_and_test(&EXT4_I(inode)->i_aiodio_unwritten)) wake_up_all(ext4_ioend_wq(io->inode)); if (io->flag & EXT4_IO_END_DIRECT) inode_dio_done(inode); if (io->iocb) aio_complete(io->iocb, io->result, 0); return ret; }
STATIC void xfs_destroy_ioend( xfs_ioend_t *ioend) { struct buffer_head *bh, *next; for (bh = ioend->io_buffer_head; bh; bh = next) { next = bh->b_private; bh->b_end_io(bh, !ioend->io_error); } if (ioend->io_iocb) { if (ioend->io_isasync) { aio_complete(ioend->io_iocb, ioend->io_error ? ioend->io_error : ioend->io_result, 0); } inode_dio_done(ioend->io_inode); } mempool_free(ioend, xfs_ioend_pool); }
static void ext4_release_io_end(ext4_io_end_t *io_end) { struct bio *bio, *next_bio; BUG_ON(!list_empty(&io_end->list)); BUG_ON(io_end->flag & EXT4_IO_END_UNWRITTEN); WARN_ON(io_end->handle); if (atomic_dec_and_test(&EXT4_I(io_end->inode)->i_ioend_count)) wake_up_all(ext4_ioend_wq(io_end->inode)); for (bio = io_end->bio; bio; bio = next_bio) { next_bio = bio->bi_private; ext4_finish_bio(bio); bio_put(bio); } if (io_end->flag & EXT4_IO_END_DIRECT) inode_dio_done(io_end->inode); if (io_end->iocb) aio_complete(io_end->iocb, io_end->result, 0); kmem_cache_free(io_end_cachep, io_end); }