#ifdef CONFIG_MIGRATION
static int btree_migratepage(struct address_space *mapping,
- struct page *newpage, struct page *page)
+ struct page *newpage, struct page *page,
+ enum migrate_mode mode)
{
/*
* we can't safely write a btree page from here,
if (page_has_private(page) &&
!try_to_release_page(page, GFP_KERNEL))
return -EAGAIN;
- return migrate_page(mapping, newpage, page);
+ return migrate_page(mapping, newpage, page, mode);
}
#endif
fs_info->endio_meta_write_workers.idle_thresh = 2;
fs_info->readahead_workers.idle_thresh = 2;
- btrfs_start_workers(&fs_info->workers, 1);
- btrfs_start_workers(&fs_info->generic_worker, 1);
- btrfs_start_workers(&fs_info->submit_workers, 1);
- btrfs_start_workers(&fs_info->delalloc_workers, 1);
- btrfs_start_workers(&fs_info->fixup_workers, 1);
- btrfs_start_workers(&fs_info->endio_workers, 1);
- btrfs_start_workers(&fs_info->endio_meta_workers, 1);
- btrfs_start_workers(&fs_info->endio_meta_write_workers, 1);
- btrfs_start_workers(&fs_info->endio_write_workers, 1);
- btrfs_start_workers(&fs_info->endio_freespace_worker, 1);
- btrfs_start_workers(&fs_info->delayed_workers, 1);
- btrfs_start_workers(&fs_info->caching_workers, 1);
- btrfs_start_workers(&fs_info->readahead_workers, 1);
+ /*
+ * btrfs_start_workers can really only fail because of ENOMEM so just
+ * return -ENOMEM if any of these fail.
+ */
+ ret = btrfs_start_workers(&fs_info->workers);
+ ret |= btrfs_start_workers(&fs_info->generic_worker);
+ ret |= btrfs_start_workers(&fs_info->submit_workers);
+ ret |= btrfs_start_workers(&fs_info->delalloc_workers);
+ ret |= btrfs_start_workers(&fs_info->fixup_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_meta_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_meta_write_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_write_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_freespace_worker);
+ ret |= btrfs_start_workers(&fs_info->delayed_workers);
+ ret |= btrfs_start_workers(&fs_info->caching_workers);
+ ret |= btrfs_start_workers(&fs_info->readahead_workers);
+ if (ret) {
+ ret = -ENOMEM;
+ goto fail_sb_buffer;
+ }
fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super);
fs_info->bdi.ra_pages = max(fs_info->bdi.ra_pages,
/* send down all the barriers */
head = &info->fs_devices->devices;
list_for_each_entry_rcu(dev, head, dev_list) {
+ if (dev->missing)
+ continue;
if (!dev->bdev) {
errors++;
continue;
/* wait for all the barriers */
list_for_each_entry_rcu(dev, head, dev_list) {
+ if (dev->missing)
+ continue;
if (!dev->bdev) {
errors++;
continue;