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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (114 commits)
  Btrfs: check for a null fs root when writing to the backup root log
  Btrfs: fix race during transaction joins
  Btrfs: fix a potential btrfs_bio leak on scrub fixups
  Btrfs: rename btrfs_bio multi -> bbio for consistency
  Btrfs: stop leaking btrfs_bios on readahead
  Btrfs: stop the readahead threads on failed mount
  Btrfs: fix extent_buffer leak in the metadata IO error handling
  Btrfs: fix the new inspection ioctls for 32 bit compat
  Btrfs: fix delayed insertion reservation
  Btrfs: ClearPageError during writepage and clean_tree_block
  Btrfs: be smarter about committing the transaction in reserve_metadata_bytes
  Btrfs: make a delayed_block_rsv for the delayed item insertion
  Btrfs: add a log of past tree roots
  btrfs: separate superblock items out of fs_info
  Btrfs: use the global reserve when truncating the free space cache inode
  Btrfs: release metadata from global reserve if we have to fallback for unlink
  Btrfs: make sure to flush queued bios if write_cache_pages waits
  Btrfs: fix extent pinning bugs in the tree log
  Btrfs: make sure btrfs_remove_free_space doesn't leak EAGAIN
  Btrfs: don't wait as long for more batches during SSD log commit
  ...
This commit is contained in:
Linus Torvalds 2011-11-06 20:03:41 -08:00
commit 6a6662ced4
31 changed files with 5435 additions and 1615 deletions
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50
fs/btrfs/delayed-inode.c
View file

@ -591,7 +591,7 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans,
return 0;
src_rsv = trans->block_rsv;
dst_rsv = &root->fs_info->global_block_rsv;
dst_rsv = &root->fs_info->delayed_block_rsv;
num_bytes = btrfs_calc_trans_metadata_size(root, 1);
ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes);
@ -609,7 +609,7 @@ static void btrfs_delayed_item_release_metadata(struct btrfs_root *root,
if (!item->bytes_reserved)
return;
rsv = &root->fs_info->global_block_rsv;
rsv = &root->fs_info->delayed_block_rsv;
btrfs_block_rsv_release(root, rsv,
item->bytes_reserved);
}
@ -624,13 +624,36 @@ static int btrfs_delayed_inode_reserve_metadata(
u64 num_bytes;
int ret;
if (!trans->bytes_reserved)
return 0;
src_rsv = trans->block_rsv;
dst_rsv = &root->fs_info->global_block_rsv;
dst_rsv = &root->fs_info->delayed_block_rsv;
num_bytes = btrfs_calc_trans_metadata_size(root, 1);
/*
* btrfs_dirty_inode will update the inode under btrfs_join_transaction
* which doesn't reserve space for speed. This is a problem since we
* still need to reserve space for this update, so try to reserve the
* space.
*
* Now if src_rsv == delalloc_block_rsv we'll let it just steal since
* we're accounted for.
*/
if (!trans->bytes_reserved &&
src_rsv != &root->fs_info->delalloc_block_rsv) {
ret = btrfs_block_rsv_add_noflush(root, dst_rsv, num_bytes);
/*
* Since we're under a transaction reserve_metadata_bytes could
* try to commit the transaction which will make it return
* EAGAIN to make us stop the transaction we have, so return
* ENOSPC instead so that btrfs_dirty_inode knows what to do.
*/
if (ret == -EAGAIN)
ret = -ENOSPC;
if (!ret)
node->bytes_reserved = num_bytes;
return ret;
}
ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes);
if (!ret)
node->bytes_reserved = num_bytes;
@ -646,7 +669,7 @@ static void btrfs_delayed_inode_release_metadata(struct btrfs_root *root,
if (!node->bytes_reserved)
return;
rsv = &root->fs_info->global_block_rsv;
rsv = &root->fs_info->delayed_block_rsv;
btrfs_block_rsv_release(root, rsv,
node->bytes_reserved);
node->bytes_reserved = 0;
@ -1026,7 +1049,7 @@ int btrfs_run_delayed_items(struct btrfs_trans_handle *trans,
path->leave_spinning = 1;
block_rsv = trans->block_rsv;
trans->block_rsv = &root->fs_info->global_block_rsv;
trans->block_rsv = &root->fs_info->delayed_block_rsv;
delayed_root = btrfs_get_delayed_root(root);
@ -1069,7 +1092,7 @@ static int __btrfs_commit_inode_delayed_items(struct btrfs_trans_handle *trans,
path->leave_spinning = 1;
block_rsv = trans->block_rsv;
trans->block_rsv = &node->root->fs_info->global_block_rsv;
trans->block_rsv = &node->root->fs_info->delayed_block_rsv;
ret = btrfs_insert_delayed_items(trans, path, node->root, node);
if (!ret)
@ -1149,7 +1172,7 @@ static void btrfs_async_run_delayed_node_done(struct btrfs_work *work)
goto free_path;
block_rsv = trans->block_rsv;
trans->block_rsv = &root->fs_info->global_block_rsv;
trans->block_rsv = &root->fs_info->delayed_block_rsv;
ret = btrfs_insert_delayed_items(trans, path, root, delayed_node);
if (!ret)
@ -1686,11 +1709,8 @@ int btrfs_delayed_update_inode(struct btrfs_trans_handle *trans,
}
ret = btrfs_delayed_inode_reserve_metadata(trans, root, delayed_node);
/*
* we must reserve enough space when we start a new transaction,
* so reserving metadata failure is impossible
*/
BUG_ON(ret);
if (ret)
goto release_node;
fill_stack_inode_item(trans, &delayed_node->inode_item, inode);
delayed_node->inode_dirty = 1;